./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c1586642bef6980141a60942369684a3359f9fff4af003e79a9c46b72c273d5b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:02:41,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:02:41,999 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 08:02:42,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:02:42,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:02:42,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:02:42,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:02:42,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:02:42,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:02:42,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:02:42,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:02:42,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:02:42,063 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:02:42,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:02:42,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:02:42,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:02:42,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:02:42,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:02:42,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:02:42,067 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:02:42,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:02:42,068 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:02:42,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:02:42,071 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:02:42,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:02:42,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:42,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:02:42,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:02:42,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:02:42,074 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:02:42,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:02:42,075 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:02:42,076 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:02:42,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:02:42,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:02:42,076 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:02:42,077 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_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1586642bef6980141a60942369684a3359f9fff4af003e79a9c46b72c273d5b [2023-11-19 08:02:42,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:02:42,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:02:42,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:02:42,491 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:02:42,492 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:02:42,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i [2023-11-19 08:02:45,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:02:46,634 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:02:46,635 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i [2023-11-19 08:02:46,688 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/data/3021d9e12/b2827f7ff1f74714ace27f40980a4a95/FLAGaa136b8f7 [2023-11-19 08:02:46,706 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/data/3021d9e12/b2827f7ff1f74714ace27f40980a4a95 [2023-11-19 08:02:46,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:02:46,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:02:46,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:46,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:02:46,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:02:46,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:46" (1/1) ... [2023-11-19 08:02:46,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b9b441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:46, skipping insertion in model container [2023-11-19 08:02:46,727 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:46" (1/1) ... [2023-11-19 08:02:46,993 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:02:49,042 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_73b01900-fecb-4eca-9afe-de757b9e39e1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i[297800,297813] [2023-11-19 08:02:49,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:49,175 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:02:49,326 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3946] [2023-11-19 08:02:49,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3953] [2023-11-19 08:02:49,330 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; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3962-3963] [2023-11-19 08:02:49,860 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_73b01900-fecb-4eca-9afe-de757b9e39e1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i[297800,297813] [2023-11-19 08:02:49,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:49,978 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:02:49,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49 WrapperNode [2023-11-19 08:02:49,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:49,982 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:49,982 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:02:49,982 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:02:49,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:50,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:50,487 INFO L138 Inliner]: procedures = 191, calls = 4823, calls flagged for inlining = 80, calls inlined = 67, statements flattened = 8234 [2023-11-19 08:02:50,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:50,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:02:50,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:02:50,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:02:50,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:50,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:50,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:50,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:50,916 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:50,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:51,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:51,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:51,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:02:51,226 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:02:51,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:02:51,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:02:51,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:51,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:51,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:51,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:51,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b01900-fecb-4eca-9afe-de757b9e39e1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:02:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_port_probe [2023-11-19 08:02:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_port_probe [2023-11-19 08:02:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 08:02:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_get_reg_sync [2023-11-19 08:02:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_get_reg_sync [2023-11-19 08:02:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-11-19 08:02:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-11-19 08:02:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_reg_sync [2023-11-19 08:02:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_reg_sync [2023-11-19 08:02:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 08:02:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 08:02:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 08:02:51,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 08:02:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:02:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 08:02:51,335 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 08:02:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_write [2023-11-19 08:02:51,336 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_write [2023-11-19 08:02:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 08:02:51,337 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 08:02:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_ioctl [2023-11-19 08:02:51,337 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_ioctl [2023-11-19 08:02:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_tiocmiwait [2023-11-19 08:02:51,337 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_tiocmiwait [2023-11-19 08:02:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 08:02:51,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 08:02:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2023-11-19 08:02:51,339 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2023-11-19 08:02:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 08:02:51,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 08:02:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 08:02:51,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 08:02:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_get_port_private [2023-11-19 08:02:51,340 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_get_port_private [2023-11-19 08:02:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 08:02:51,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 08:02:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 08:02:51,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 08:02:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2023-11-19 08:02:51,342 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2023-11-19 08:02:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_get_uart_reg [2023-11-19 08:02:51,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_get_uart_reg [2023-11-19 08:02:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2023-11-19 08:02:51,342 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2023-11-19 08:02:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 08:02:51,343 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 08:02:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2023-11-19 08:02:51,343 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2023-11-19 08:02:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_get_usb_serial [2023-11-19 08:02:51,344 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_get_usb_serial [2023-11-19 08:02:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_get_icount [2023-11-19 08:02:51,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_get_icount [2023-11-19 08:02:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:02:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_led_async [2023-11-19 08:02:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_led_async [2023-11-19 08:02:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 08:02:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 08:02:51,346 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-19 08:02:51,346 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-19 08:02:51,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 08:02:51,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 08:02:51,346 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 08:02:51,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 08:02:51,347 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 08:02:51,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 08:02:51,347 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_termios [2023-11-19 08:02:51,347 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_termios [2023-11-19 08:02:51,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 08:02:51,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 08:02:51,348 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_led_sync [2023-11-19 08:02:51,348 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_led_sync [2023-11-19 08:02:51,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_3 [2023-11-19 08:02:51,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_3 [2023-11-19 08:02:51,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 08:02:51,349 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 08:02:51,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 08:02:51,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 08:02:51,350 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:02:51,350 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:02:51,350 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_chars_in_buffer [2023-11-19 08:02:51,350 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_chars_in_buffer [2023-11-19 08:02:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:02:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-19 08:02:51,351 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-19 08:02:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_throttle [2023-11-19 08:02:51,351 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_throttle [2023-11-19 08:02:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 08:02:51,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 08:02:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:02:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2023-11-19 08:02:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2023-11-19 08:02:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-11-19 08:02:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-11-19 08:02:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:02:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:02:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-11-19 08:02:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-11-19 08:02:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit_lock [2023-11-19 08:02:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit_lock [2023-11-19 08:02:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_uart_reg [2023-11-19 08:02:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_uart_reg [2023-11-19 08:02:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:02:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-19 08:02:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-19 08:02:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 08:02:51,356 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 08:02:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 08:02:51,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 08:02:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-19 08:02:51,357 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-19 08:02:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_port_paranoia_check [2023-11-19 08:02:51,358 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_port_paranoia_check [2023-11-19 08:02:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_serial_paranoia_check [2023-11-19 08:02:51,358 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_serial_paranoia_check [2023-11-19 08:02:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 08:02:51,358 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 08:02:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_led_activity [2023-11-19 08:02:51,359 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_led_activity [2023-11-19 08:02:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_bulk_in_callback [2023-11-19 08:02:51,359 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_bulk_in_callback [2023-11-19 08:02:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_write_room [2023-11-19 08:02:51,360 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_write_room [2023-11-19 08:02:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:02:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 08:02:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_calc_num_ports [2023-11-19 08:02:51,361 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_calc_num_ports [2023-11-19 08:02:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_break [2023-11-19 08:02:51,361 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_break [2023-11-19 08:02:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_tiocmset [2023-11-19 08:02:51,361 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_tiocmset [2023-11-19 08:02:51,362 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_tiocmget [2023-11-19 08:02:51,362 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_tiocmget [2023-11-19 08:02:51,362 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 08:02:51,362 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 08:02:51,362 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 08:02:51,363 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 08:02:51,363 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_set_port_private [2023-11-19 08:02:51,363 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_set_port_private [2023-11-19 08:02:51,363 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_unthrottle [2023-11-19 08:02:51,364 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_unthrottle [2023-11-19 08:02:51,364 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 08:02:51,364 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 08:02:51,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:02:51,364 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2023-11-19 08:02:51,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2023-11-19 08:02:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2023-11-19 08:02:51,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2023-11-19 08:02:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure mos7840_port_remove [2023-11-19 08:02:51,365 INFO L138 BoogieDeclarations]: Found implementation of procedure mos7840_port_remove [2023-11-19 08:02:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 08:02:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:02:51,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:02:52,158 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:02:52,163 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:02:54,389 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 08:03:04,176 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:03:04,199 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:03:04,200 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:03:04,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:04 BoogieIcfgContainer [2023-11-19 08:03:04,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:03:04,222 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:03:04,222 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:03:04,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:03:04,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:46" (1/3) ... [2023-11-19 08:03:04,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793cc8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:04, skipping insertion in model container [2023-11-19 08:03:04,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49" (2/3) ... [2023-11-19 08:03:04,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793cc8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:04, skipping insertion in model container [2023-11-19 08:03:04,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:04" (3/3) ... [2023-11-19 08:03:04,230 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--mos7840.ko-entry_point.cil.out.i [2023-11-19 08:03:04,251 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:03:04,251 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:03:04,351 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:03:04,358 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;@65d43aa6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:03:04,359 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:03:04,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 2069 states, 1456 states have (on average 1.4285714285714286) internal successors, (2080), 1549 states have internal predecessors, (2080), 544 states have call successors, (544), 68 states have call predecessors, (544), 67 states have return successors, (539), 512 states have call predecessors, (539), 539 states have call successors, (539) [2023-11-19 08:03:04,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-19 08:03:04,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:04,396 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:04,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:03:04,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:04,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1924373879, now seen corresponding path program 1 times [2023-11-19 08:03:04,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:04,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13168402] [2023-11-19 08:03:04,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:04,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:03:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:03:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:03:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:03:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:03:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:03:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:03:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:03:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:03:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 08:03:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:03:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:03:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 08:03:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:03:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 08:03:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:03:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-19 08:03:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:03:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 08:03:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:03:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-19 08:03:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:03:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-19 08:03:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:03:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-19 08:03:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:03:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,971 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-11-19 08:03:07,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:07,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13168402] [2023-11-19 08:03:07,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13168402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:07,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:07,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:03:07,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233727382] [2023-11-19 08:03:07,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:07,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:03:07,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:08,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:03:08,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:03:08,028 INFO L87 Difference]: Start difference. First operand has 2069 states, 1456 states have (on average 1.4285714285714286) internal successors, (2080), 1549 states have internal predecessors, (2080), 544 states have call successors, (544), 68 states have call predecessors, (544), 67 states have return successors, (539), 512 states have call predecessors, (539), 539 states have call successors, (539) Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 08:03:28,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:28,282 INFO L93 Difference]: Finished difference Result 4523 states and 7078 transitions. [2023-11-19 08:03:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:03:28,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 162 [2023-11-19 08:03:28,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:28,341 INFO L225 Difference]: With dead ends: 4523 [2023-11-19 08:03:28,341 INFO L226 Difference]: Without dead ends: 2432 [2023-11-19 08:03:28,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:03:28,386 INFO L413 NwaCegarLoop]: 2758 mSDtfsCounter, 1046 mSDsluCounter, 6474 mSDsCounter, 0 mSdLazyCounter, 4029 mSolverCounterSat, 1256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 9232 SdHoareTripleChecker+Invalid, 5285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1256 IncrementalHoareTripleChecker+Valid, 4029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:28,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 9232 Invalid, 5285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1256 Valid, 4029 Invalid, 0 Unknown, 0 Unchecked, 19.6s Time] [2023-11-19 08:03:28,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2023-11-19 08:03:28,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2197. [2023-11-19 08:03:28,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 1557 states have (on average 1.4065510597302504) internal successors, (2190), 1652 states have internal predecessors, (2190), 558 states have call successors, (558), 82 states have call predecessors, (558), 81 states have return successors, (557), 524 states have call predecessors, (557), 557 states have call successors, (557) [2023-11-19 08:03:28,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3305 transitions. [2023-11-19 08:03:28,743 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3305 transitions. Word has length 162 [2023-11-19 08:03:28,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:28,749 INFO L495 AbstractCegarLoop]: Abstraction has 2197 states and 3305 transitions. [2023-11-19 08:03:28,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 08:03:28,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3305 transitions. [2023-11-19 08:03:28,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-19 08:03:28,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:28,766 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:28,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:03:28,768 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:03:28,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:28,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1515055763, now seen corresponding path program 1 times [2023-11-19 08:03:28,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:28,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940721245] [2023-11-19 08:03:28,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:28,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:31,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:03:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:31,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:03:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:31,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:03:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:31,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:03:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat