/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:33:38,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:33:38,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:33:38,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:33:38,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:33:38,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:33:38,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:33:38,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:33:38,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:33:38,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:33:38,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:33:38,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:33:38,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:33:38,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:33:38,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:33:38,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:33:38,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:33:38,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:33:38,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:33:38,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:33:38,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:33:38,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:33:38,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:33:38,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:33:38,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 21:33:39,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:33:39,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:33:39,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:33:39,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:33:39,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:33:39,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:33:39,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:33:39,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:33:39,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:33:39,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:33:39,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:33:39,013 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:33:39,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:33:39,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:33:39,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:33:39,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:33:39,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:33:39,070 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:33:39,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:33:39,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:33:39,073 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:33:39,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:33:39,074 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:33:39,074 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:33:39,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:33:39,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:33:39,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:33:39,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:33:39,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:33:39,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:33:39,076 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:33:39,076 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:33:39,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:33:39,076 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:33:39,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:33:39,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:33:39,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:33:39,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:33:39,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:33:39,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:33:39,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:33:39,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:33:39,078 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:33:39,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:33:39,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:33:39,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:33:39,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:33:39,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:33:39,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:33:39,481 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:33:39,481 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:33:39,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-10-15 21:33:39,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac434faad/69ddff65bbf04d4a96a5a07b2da4837a/FLAG8b9156408 [2022-10-15 21:33:40,665 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:33:40,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-10-15 21:33:40,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac434faad/69ddff65bbf04d4a96a5a07b2da4837a/FLAG8b9156408 [2022-10-15 21:33:41,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac434faad/69ddff65bbf04d4a96a5a07b2da4837a [2022-10-15 21:33:41,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:33:41,109 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:33:41,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:33:41,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:33:41,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:33:41,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:33:41" (1/1) ... [2022-10-15 21:33:41,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190bc32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:41, skipping insertion in model container [2022-10-15 21:33:41,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:33:41" (1/1) ... [2022-10-15 21:33:41,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:33:41,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:33:42,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2022-10-15 21:33:43,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:33:43,194 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:33:43,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2022-10-15 21:33:43,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:33:43,706 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:33:43,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43 WrapperNode [2022-10-15 21:33:43,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:33:43,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:33:43,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:33:43,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:33:43,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:43,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:44,024 INFO L138 Inliner]: procedures = 203, calls = 1280, calls flagged for inlining = 87, calls inlined = 87, statements flattened = 3621 [2022-10-15 21:33:44,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:33:44,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:33:44,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:33:44,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:33:44,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:44,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:44,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:44,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:44,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:44,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:44,321 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:44,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:44,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:33:44,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:33:44,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:33:44,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:33:44,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (1/1) ... [2022-10-15 21:33:44,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:33:44,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:33:44,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:33:44,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:33:44,477 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-10-15 21:33:44,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-10-15 21:33:44,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-10-15 21:33:44,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-10-15 21:33:44,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:33:44,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:33:44,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:33:44,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:33:44,478 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-10-15 21:33:44,478 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-10-15 21:33:44,478 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-10-15 21:33:44,478 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-10-15 21:33:44,478 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-10-15 21:33:44,479 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-10-15 21:33:44,479 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-15 21:33:44,479 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-15 21:33:44,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:33:44,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:33:44,479 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-10-15 21:33:44,479 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-10-15 21:33:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-10-15 21:33:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-10-15 21:33:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-10-15 21:33:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-10-15 21:33:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-10-15 21:33:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-10-15 21:33:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:33:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:33:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:33:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:33:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-10-15 21:33:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-10-15 21:33:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:33:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:33:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:33:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:33:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-10-15 21:33:44,482 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-10-15 21:33:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-10-15 21:33:44,482 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-10-15 21:33:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:33:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:33:44,482 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:33:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:33:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-10-15 21:33:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-10-15 21:33:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-10-15 21:33:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-10-15 21:33:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-10-15 21:33:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-10-15 21:33:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-15 21:33:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-15 21:33:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-15 21:33:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-15 21:33:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:33:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:33:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:33:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:33:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-10-15 21:33:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-10-15 21:33:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:33:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:33:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-15 21:33:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-15 21:33:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-10-15 21:33:44,486 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-10-15 21:33:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:33:44,486 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:33:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-15 21:33:44,486 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-15 21:33:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-10-15 21:33:44,487 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-10-15 21:33:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-15 21:33:44,487 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-15 21:33:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-10-15 21:33:44,487 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-10-15 21:33:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:33:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:33:44,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:33:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:33:44,488 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:33:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-15 21:33:44,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-15 21:33:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-15 21:33:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-15 21:33:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:33:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:33:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-10-15 21:33:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-10-15 21:33:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:33:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:33:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-10-15 21:33:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-10-15 21:33:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-10-15 21:33:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-10-15 21:33:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:33:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-10-15 21:33:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-10-15 21:33:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-10-15 21:33:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-10-15 21:33:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-10-15 21:33:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-10-15 21:33:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:33:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:33:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-10-15 21:33:44,492 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-10-15 21:33:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:33:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-10-15 21:33:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-10-15 21:33:44,492 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-10-15 21:33:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-10-15 21:33:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-10-15 21:33:44,493 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-10-15 21:33:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-15 21:33:44,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-15 21:33:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:33:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:33:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:33:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-10-15 21:33:44,493 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-10-15 21:33:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-10-15 21:33:44,494 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-10-15 21:33:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-10-15 21:33:44,494 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-10-15 21:33:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-15 21:33:44,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-15 21:33:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-15 21:33:44,495 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-15 21:33:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-10-15 21:33:44,495 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-10-15 21:33:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-10-15 21:33:44,495 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-10-15 21:33:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-15 21:33:44,495 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-15 21:33:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-10-15 21:33:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-10-15 21:33:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-10-15 21:33:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-10-15 21:33:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:33:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:33:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-10-15 21:33:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-10-15 21:33:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-15 21:33:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-15 21:33:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-10-15 21:33:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-10-15 21:33:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:33:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-15 21:33:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-10-15 21:33:44,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:33:44,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:33:44,498 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:33:44,498 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:33:45,144 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:33:45,149 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:33:45,444 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:34:05,884 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:34:05,909 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:34:05,909 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:34:05,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:34:05 BoogieIcfgContainer [2022-10-15 21:34:05,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:34:05,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:34:05,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:34:05,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:34:05,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:33:41" (1/3) ... [2022-10-15 21:34:05,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9d112d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:34:05, skipping insertion in model container [2022-10-15 21:34:05,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:33:43" (2/3) ... [2022-10-15 21:34:05,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9d112d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:34:05, skipping insertion in model container [2022-10-15 21:34:05,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:34:05" (3/3) ... [2022-10-15 21:34:05,934 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-10-15 21:34:05,960 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:34:05,960 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-10-15 21:34:06,097 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:34:06,108 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=LoopsAndPotentialCycles, 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;@664ab856, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:34:06,108 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-10-15 21:34:06,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 1378 states, 962 states have (on average 1.4282744282744282) internal successors, (1374), 1030 states have internal predecessors, (1374), 323 states have call successors, (323), 67 states have call predecessors, (323), 66 states have return successors, (319), 316 states have call predecessors, (319), 319 states have call successors, (319) [2022-10-15 21:34:06,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 21:34:06,149 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:34:06,150 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-10-15 21:34:06,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting printer_setupErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [printer_setupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printer_setupErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printer_setupErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 21:34:06,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:34:06,159 INFO L85 PathProgramCache]: Analyzing trace with hash -610689723, now seen corresponding path program 1 times [2022-10-15 21:34:06,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:34:06,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479215271] [2022-10-15 21:34:06,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:34:06,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:34:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:34:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:07,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:34:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:07,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:34:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:34:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:07,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:34:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:07,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:34:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:07,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:34:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:07,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-15 21:34:07,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:34:07,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479215271] [2022-10-15 21:34:07,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479215271] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:34:07,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:34:07,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:34:07,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981291461] [2022-10-15 21:34:07,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:34:07,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:34:07,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:34:07,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:34:07,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:34:07,521 INFO L87 Difference]: Start difference. First operand has 1378 states, 962 states have (on average 1.4282744282744282) internal successors, (1374), 1030 states have internal predecessors, (1374), 323 states have call successors, (323), 67 states have call predecessors, (323), 66 states have return successors, (319), 316 states have call predecessors, (319), 319 states have call successors, (319) Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-15 21:34:09,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:19,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:34:19,167 INFO L93 Difference]: Finished difference Result 3759 states and 5672 transitions. [2022-10-15 21:34:19,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:34:19,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2022-10-15 21:34:19,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:34:19,223 INFO L225 Difference]: With dead ends: 3759 [2022-10-15 21:34:19,223 INFO L226 Difference]: Without dead ends: 2297 [2022-10-15 21:34:19,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:34:19,252 INFO L413 NwaCegarLoop]: 1951 mSDtfsCounter, 2195 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 1400 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2420 SdHoareTripleChecker+Valid, 4291 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1400 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:34:19,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2420 Valid, 4291 Invalid, 3063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1400 Valid, 1662 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2022-10-15 21:34:19,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2022-10-15 21:34:19,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 1803. [2022-10-15 21:34:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1237 states have (on average 1.333872271624899) internal successors, (1650), 1288 states have internal predecessors, (1650), 449 states have call successors, (449), 99 states have call predecessors, (449), 99 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-10-15 21:34:19,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2548 transitions. [2022-10-15 21:34:19,518 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2548 transitions. Word has length 66 [2022-10-15 21:34:19,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:34:19,519 INFO L495 AbstractCegarLoop]: Abstraction has 1803 states and 2548 transitions. [2022-10-15 21:34:19,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-15 21:34:19,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2548 transitions. [2022-10-15 21:34:19,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 21:34:19,526 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:34:19,527 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-10-15 21:34:19,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:34:19,528 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [printer_setupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printer_setupErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printer_setupErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 21:34:19,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:34:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1900368481, now seen corresponding path program 1 times [2022-10-15 21:34:19,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:34:19,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584898894] [2022-10-15 21:34:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:34:19,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:34:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:34:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:34:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:34:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:34:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:34:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:34:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 21:34:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 21:34:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:20,150 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-15 21:34:20,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:34:20,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584898894] [2022-10-15 21:34:20,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584898894] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:34:20,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:34:20,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:34:20,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545840934] [2022-10-15 21:34:20,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:34:20,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:34:20,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:34:20,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:34:20,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:34:20,155 INFO L87 Difference]: Start difference. First operand 1803 states and 2548 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 21:34:22,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:24,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []