./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-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:10:29,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:10:29,923 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:10:29,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:10:29,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:10:29,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:10:29,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:10:29,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:10:29,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:10:29,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:10:29,963 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:10:29,964 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:10:29,965 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:10:29,965 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:10:29,966 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:10:29,966 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:10:29,967 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:10:29,967 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:10:29,968 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:10:29,968 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:10:29,969 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:10:29,970 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:10:29,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:10:29,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:10:29,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:10:29,972 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:10:29,972 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:10:29,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:10:29,973 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:10:29,974 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:10:29,974 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:10:29,975 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:10:29,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:10:29,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:10:29,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:29,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:10:29,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:10:29,977 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:10:29,977 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:10:29,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:10:29,978 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:10:29,978 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:10:29,978 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:10:29,978 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:10:29,979 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2023-11-23 21:10:30,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:10:30,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:10:30,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:10:30,319 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:10:30,319 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:10:30,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2023-11-23 21:10:33,554 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:10:34,233 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:10:34,233 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2023-11-23 21:10:34,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/data/630fb0c1f/f518da16fd81463980764e633d86cc49/FLAG3da73eb06 [2023-11-23 21:10:34,304 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/data/630fb0c1f/f518da16fd81463980764e633d86cc49 [2023-11-23 21:10:34,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:10:34,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:10:34,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:34,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:10:34,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:10:34,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:34" (1/1) ... [2023-11-23 21:10:34,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e748951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:34, skipping insertion in model container [2023-11-23 21:10:34,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:34" (1/1) ... [2023-11-23 21:10:34,544 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:10:37,051 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_a226c357-0030-4982-9502-ad968017cb58/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2023-11-23 21:10:37,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:37,361 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:10:37,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [3628-3629] [2023-11-23 21:10:37,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3640-3641] [2023-11-23 21:10:37,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3644-3645] [2023-11-23 21:10:37,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3648-3649] [2023-11-23 21:10:37,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3652-3653] [2023-11-23 21:10:37,830 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_a226c357-0030-4982-9502-ad968017cb58/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2023-11-23 21:10:37,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:37,994 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:37,994 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:38,002 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:10:38,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38 WrapperNode [2023-11-23 21:10:38,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:38,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:38,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:10:38,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:10:38,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38" (1/1) ... [2023-11-23 21:10:38,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38" (1/1) ... [2023-11-23 21:10:38,406 INFO L138 Inliner]: procedures = 384, calls = 3117, calls flagged for inlining = 182, calls inlined = 150, statements flattened = 7306 [2023-11-23 21:10:38,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:38,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:10:38,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:10:38,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:10:38,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38" (1/1) ... [2023-11-23 21:10:38,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38" (1/1) ... [2023-11-23 21:10:38,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38" (1/1) ... [2023-11-23 21:10:38,558 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38" (1/1) ... [2023-11-23 21:10:38,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38" (1/1) ... [2023-11-23 21:10:38,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38" (1/1) ... [2023-11-23 21:10:38,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38" (1/1) ... [2023-11-23 21:10:38,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38" (1/1) ... [2023-11-23 21:10:38,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:10:38,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:10:38,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:10:38,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:10:38,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38" (1/1) ... [2023-11-23 21:10:38,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:38,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:38,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:10:38,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a226c357-0030-4982-9502-ad968017cb58/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:10:39,007 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-23 21:10:39,008 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-23 21:10:39,008 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-23 21:10:39,008 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-23 21:10:39,009 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 21:10:39,009 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 21:10:39,009 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-23 21:10:39,009 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-23 21:10:39,009 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_kick_command_queue [2023-11-23 21:10:39,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_kick_command_queue [2023-11-23 21:10:39,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:10:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:10:39,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:10:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:10:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_flush_input_fifo [2023-11-23 21:10:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_flush_input_fifo [2023-11-23 21:10:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:10:39,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:10:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-23 21:10:39,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-23 21:10:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_config [2023-11-23 21:10:39,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_config [2023-11-23 21:10:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-23 21:10:39,015 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-23 21:10:39,016 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-23 21:10:39,016 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-23 21:10:39,016 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2023-11-23 21:10:39,016 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2023-11-23 21:10:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2023-11-23 21:10:39,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2023-11-23 21:10:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:10:39,018 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:10:39,018 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-23 21:10:39,018 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-23 21:10:39,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:10:39,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:10:39,018 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-23 21:10:39,019 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-23 21:10:39,019 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:10:39,019 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:10:39,019 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 21:10:39,019 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 21:10:39,019 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_status_work [2023-11-23 21:10:39,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_status_work [2023-11-23 21:10:39,020 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_cancel_work [2023-11-23 21:10:39,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_cancel_work [2023-11-23 21:10:39,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:10:39,020 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:10:39,021 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:10:39,021 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:10:39,021 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-23 21:10:39,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-23 21:10:39,022 INFO L130 BoogieDeclarations]: Found specification of procedure up [2023-11-23 21:10:39,022 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2023-11-23 21:10:39,022 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_get_kref [2023-11-23 21:10:39,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_get_kref [2023-11-23 21:10:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:10:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 21:10:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-11-23 21:10:39,024 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-11-23 21:10:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2023-11-23 21:10:39,024 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2023-11-23 21:10:39,025 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_cancel_work [2023-11-23 21:10:39,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_cancel_work [2023-11-23 21:10:39,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ftdi_module_lock [2023-11-23 21:10:39,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ftdi_module_lock [2023-11-23 21:10:39,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:10:39,026 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2023-11-23 21:10:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2023-11-23 21:10:39,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:10:39,026 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_cancel_work [2023-11-23 21:10:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_cancel_work [2023-11-23 21:10:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:10:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:10:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:10:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:10:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-23 21:10:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-23 21:10:39,028 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-23 21:10:39,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-23 21:10:39,029 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:10:39,029 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:10:39,029 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_do_callback [2023-11-23 21:10:39,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_do_callback [2023-11-23 21:10:39,029 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_requeue_work [2023-11-23 21:10:39,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_requeue_work [2023-11-23 21:10:39,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-23 21:10:39,030 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-23 21:10:39,030 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-23 21:10:39,030 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-23 21:10:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-11-23 21:10:39,031 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-11-23 21:10:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-23 21:10:39,031 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-23 21:10:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_found_controller [2023-11-23 21:10:39,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_found_controller [2023-11-23 21:10:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_setup_controller [2023-11-23 21:10:39,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_setup_controller [2023-11-23 21:10:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2023-11-23 21:10:39,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2023-11-23 21:10:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_config [2023-11-23 21:10:39,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_config [2023-11-23 21:10:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_respond_work [2023-11-23 21:10:39,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_respond_work [2023-11-23 21:10:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:10:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 21:10:39,034 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 21:10:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_requeue_work [2023-11-23 21:10:39,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_requeue_work [2023-11-23 21:10:39,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-11-23 21:10:39,035 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-11-23 21:10:39,036 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-11-23 21:10:39,036 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-11-23 21:10:39,036 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2023-11-23 21:10:39,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2023-11-23 21:10:39,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:10:39,036 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-23 21:10:39,037 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-23 21:10:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_reg [2023-11-23 21:10:39,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_reg [2023-11-23 21:10:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_disconnect [2023-11-23 21:10:39,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_disconnect [2023-11-23 21:10:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_respond_queue_work [2023-11-23 21:10:39,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_respond_queue_work [2023-11-23 21:10:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write [2023-11-23 21:10:39,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write [2023-11-23 21:10:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 21:10:39,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 21:10:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_completions [2023-11-23 21:10:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_completions [2023-11-23 21:10:39,040 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-23 21:10:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-23 21:10:39,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:10:39,041 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-23 21:10:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-23 21:10:39,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:10:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:10:39,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_89 [2023-11-23 21:10:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_89 [2023-11-23 21:10:39,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_88 [2023-11-23 21:10:39,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_88 [2023-11-23 21:10:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_87 [2023-11-23 21:10:39,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_87 [2023-11-23 21:10:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_command_work [2023-11-23 21:10:39,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_command_work [2023-11-23 21:10:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:10:39,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:10:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_put_kref [2023-11-23 21:10:39,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_put_kref [2023-11-23 21:10:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_targets [2023-11-23 21:10:39,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_targets [2023-11-23 21:10:39,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:10:39,056 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_pcimem [2023-11-23 21:10:39,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_pcimem [2023-11-23 21:10:39,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:10:39,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:10:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-23 21:10:39,058 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-23 21:10:39,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2023-11-23 21:10:39,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2023-11-23 21:10:39,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:10:39,058 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-23 21:10:39,058 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-23 21:10:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:10:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_requeue_work [2023-11-23 21:10:39,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_requeue_work [2023-11-23 21:10:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:10:39,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:10:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-11-23 21:10:39,060 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-11-23 21:10:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_queue_work [2023-11-23 21:10:39,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_queue_work [2023-11-23 21:10:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-23 21:10:39,060 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-23 21:10:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_pcimem [2023-11-23 21:10:39,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_pcimem [2023-11-23 21:10:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2023-11-23 21:10:39,061 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2023-11-23 21:10:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-23 21:10:39,061 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-23 21:10:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-23 21:10:39,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-23 21:10:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:10:39,062 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:10:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-23 21:10:39,062 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-23 21:10:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_reg [2023-11-23 21:10:39,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_reg [2023-11-23 21:10:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ftdi_module_lock [2023-11-23 21:10:39,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ftdi_module_lock [2023-11-23 21:10:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2023-11-23 21:10:39,063 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2023-11-23 21:10:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:10:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:10:39,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:10:39,863 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:10:39,874 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:10:41,057 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:10:54,405 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:10:56,589 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:10:56,589 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:10:56,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:56 BoogieIcfgContainer [2023-11-23 21:10:56,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:10:56,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:10:56,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:10:56,599 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:10:56,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:10:34" (1/3) ... [2023-11-23 21:10:56,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f21fcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:56, skipping insertion in model container [2023-11-23 21:10:56,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:38" (2/3) ... [2023-11-23 21:10:56,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f21fcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:56, skipping insertion in model container [2023-11-23 21:10:56,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:56" (3/3) ... [2023-11-23 21:10:56,604 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2023-11-23 21:10:56,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:10:56,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:10:56,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:10:56,740 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=FINITE_AUTOMATA, 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;@508af4e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:10:56,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:10:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 1607 states, 985 states have (on average 1.3918781725888325) internal successors, (1371), 1038 states have internal predecessors, (1371), 531 states have call successors, (531), 90 states have call predecessors, (531), 89 states have return successors, (524), 515 states have call predecessors, (524), 524 states have call successors, (524) [2023-11-23 21:10:56,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-23 21:10:56,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:56,793 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:56,794 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:56,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:56,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1068016935, now seen corresponding path program 1 times [2023-11-23 21:10:56,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:56,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867565759] [2023-11-23 21:10:56,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:56,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-23 21:10:58,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:58,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867565759] [2023-11-23 21:10:58,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867565759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:58,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:58,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:10:58,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438266780] [2023-11-23 21:10:58,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:58,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:10:58,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:58,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:10:58,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:58,281 INFO L87 Difference]: Start difference. First operand has 1607 states, 985 states have (on average 1.3918781725888325) internal successors, (1371), 1038 states have internal predecessors, (1371), 531 states have call successors, (531), 90 states have call predecessors, (531), 89 states have return successors, (524), 515 states have call predecessors, (524), 524 states have call successors, (524) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 21:11:00,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:02,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:05,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:07,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:08,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:09,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:09,714 INFO L93 Difference]: Finished difference Result 4627 states and 7378 transitions. [2023-11-23 21:11:09,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:11:09,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2023-11-23 21:11:09,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:09,773 INFO L225 Difference]: With dead ends: 4627 [2023-11-23 21:11:09,773 INFO L226 Difference]: Without dead ends: 3023 [2023-11-23 21:11:09,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:09,821 INFO L413 NwaCegarLoop]: 2269 mSDtfsCounter, 2227 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2227 SdHoareTripleChecker+Valid, 4421 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:09,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2227 Valid, 4421 Invalid, 384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 377 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2023-11-23 21:11:09,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2023-11-23 21:11:10,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 3006. [2023-11-23 21:11:10,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 1869 states have (on average 1.3905831995719635) internal successors, (2599), 1947 states have internal predecessors, (2599), 967 states have call successors, (967), 170 states have call predecessors, (967), 169 states have return successors, (958), 940 states have call predecessors, (958), 958 states have call successors, (958) [2023-11-23 21:11:10,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 4524 transitions. [2023-11-23 21:11:10,195 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 4524 transitions. Word has length 102 [2023-11-23 21:11:10,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:10,197 INFO L495 AbstractCegarLoop]: Abstraction has 3006 states and 4524 transitions. [2023-11-23 21:11:10,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 21:11:10,198 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 4524 transitions. [2023-11-23 21:11:10,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-23 21:11:10,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:10,209 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:11:10,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:11:10,209 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:10,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:10,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1091652292, now seen corresponding path program 1 times [2023-11-23 21:11:10,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:10,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797438810] [2023-11-23 21:11:10,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:10,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:11,523 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-23 21:11:11,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:11,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797438810] [2023-11-23 21:11:11,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797438810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:11,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:11,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:11:11,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785929263] [2023-11-23 21:11:11,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:11,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:11:11,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:11,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:11:11,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:11,528 INFO L87 Difference]: Start difference. First operand 3006 states and 4524 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 21:11:12,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:14,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:18,030 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 [] [2023-11-23 21:11:18,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:18,287 INFO L93 Difference]: Finished difference Result 3086 states and 4608 transitions. [2023-11-23 21:11:18,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:11:18,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2023-11-23 21:11:18,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:18,317 INFO L225 Difference]: With dead ends: 3086 [2023-11-23 21:11:18,317 INFO L226 Difference]: Without dead ends: 3081 [2023-11-23 21:11:18,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:18,321 INFO L413 NwaCegarLoop]: 2228 mSDtfsCounter, 2170 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:18,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2170 Valid, 2434 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 215 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2023-11-23 21:11:18,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2023-11-23 21:11:18,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 3079. [2023-11-23 21:11:18,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 1908 states have (on average 1.3841719077568133) internal successors, (2641), 1988 states have internal predecessors, (2641), 983 states have call successors, (983), 188 states have call predecessors, (983), 187 states have return successors, (976), 958 states have call predecessors, (976), 976 states have call successors, (976) [2023-11-23 21:11:18,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 4600 transitions. [2023-11-23 21:11:18,619 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 4600 transitions. Word has length 102 [2023-11-23 21:11:18,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:18,620 INFO L495 AbstractCegarLoop]: Abstraction has 3079 states and 4600 transitions. [2023-11-23 21:11:18,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 21:11:18,620 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 4600 transitions. [2023-11-23 21:11:18,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-23 21:11:18,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:18,629 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:11:18,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:11:18,629 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:18,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:18,630 INFO L85 PathProgramCache]: Analyzing trace with hash 969204128, now seen corresponding path program 1 times [2023-11-23 21:11:18,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:18,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316165424] [2023-11-23 21:11:18,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:18,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:19,341 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-23 21:11:19,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:19,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316165424] [2023-11-23 21:11:19,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316165424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:19,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:19,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:11:19,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116146667] [2023-11-23 21:11:19,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:19,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:11:19,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:19,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:11:19,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:19,347 INFO L87 Difference]: Start difference. First operand 3079 states and 4600 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 21:11:21,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:23,233 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 []