/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-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:01:08,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:01:08,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:01:08,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:01:08,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:01:08,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:01:08,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:01:08,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:01:08,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:01:08,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:01:08,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:01:08,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:01:08,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:01:08,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:01:08,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:01:08,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:01:08,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:01:08,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:01:08,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:01:08,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:01:08,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:01:08,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:01:08,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:01:08,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:01:08,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:01:08,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:01:08,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:01:08,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:01:08,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:01:08,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:01:08,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:01:08,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:01:08,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:01:08,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:01:08,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:01:08,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:01:08,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:01:08,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:01:08,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:01:08,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:01:08,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:01:08,302 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 21:01:08,335 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:01:08,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:01:08,336 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:01:08,337 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:01:08,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:01:08,338 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:01:08,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:01:08,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:01:08,340 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:01:08,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:01:08,342 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:01:08,342 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:01:08,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:01:08,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:01:08,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:01:08,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:01:08,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:01:08,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:01:08,344 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:01:08,347 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:01:08,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:01:08,347 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:01:08,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:01:08,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:01:08,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:01:08,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:01:08,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:01:08,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:01:08,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:01:08,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:01:08,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:01:08,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:01:08,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:01:08,351 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:01:08,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:01:08,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:01:08,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:01:08,914 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:01:08,915 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:01:08,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2022-10-15 21:01:09,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee843b8ec/57e8d1e6e2f14c14998a6ce93a2e48d3/FLAGb9658d9b5 [2022-10-15 21:01:10,252 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:01:10,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2022-10-15 21:01:10,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee843b8ec/57e8d1e6e2f14c14998a6ce93a2e48d3/FLAGb9658d9b5 [2022-10-15 21:01:10,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee843b8ec/57e8d1e6e2f14c14998a6ce93a2e48d3 [2022-10-15 21:01:10,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:01:10,618 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:01:10,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:01:10,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:01:10,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:01:10,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:01:10" (1/1) ... [2022-10-15 21:01:10,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7760a985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:10, skipping insertion in model container [2022-10-15 21:01:10,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:01:10" (1/1) ... [2022-10-15 21:01:10,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:01:10,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:01:13,136 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-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i[158757,158770] [2022-10-15 21:01:13,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:01:13,242 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:01:13,691 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-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i[158757,158770] [2022-10-15 21:01:13,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:01:13,863 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:01:13,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13 WrapperNode [2022-10-15 21:01:13,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:01:13,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:01:13,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:01:13,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:01:13,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13" (1/1) ... [2022-10-15 21:01:14,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13" (1/1) ... [2022-10-15 21:01:14,251 INFO L138 Inliner]: procedures = 191, calls = 1268, calls flagged for inlining = 83, calls inlined = 83, statements flattened = 3466 [2022-10-15 21:01:14,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:01:14,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:01:14,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:01:14,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:01:14,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13" (1/1) ... [2022-10-15 21:01:14,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13" (1/1) ... [2022-10-15 21:01:14,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13" (1/1) ... [2022-10-15 21:01:14,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13" (1/1) ... [2022-10-15 21:01:14,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13" (1/1) ... [2022-10-15 21:01:14,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13" (1/1) ... [2022-10-15 21:01:14,564 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13" (1/1) ... [2022-10-15 21:01:14,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13" (1/1) ... [2022-10-15 21:01:14,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:01:14,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:01:14,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:01:14,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:01:14,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13" (1/1) ... [2022-10-15 21:01:14,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:01:14,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:01:14,685 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 21:01:14,705 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 21:01:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-10-15 21:01:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-10-15 21:01:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-15 21:01:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-15 21:01:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-15 21:01:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-15 21:01:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:01:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:01:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:01:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:01:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-10-15 21:01:14,804 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-10-15 21:01:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-10-15 21:01:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-10-15 21:01:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:01:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:01:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-10-15 21:01:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-10-15 21:01:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-10-15 21:01:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-10-15 21:01:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-15 21:01:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-15 21:01:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:01:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:01:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-10-15 21:01:14,810 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-10-15 21:01:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2022-10-15 21:01:14,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2022-10-15 21:01:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-10-15 21:01:14,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-10-15 21:01:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-10-15 21:01:14,811 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-10-15 21:01:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-10-15 21:01:14,811 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-10-15 21:01:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-10-15 21:01:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-10-15 21:01:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-10-15 21:01:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-10-15 21:01:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:01:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:01:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:01:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:01:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:01:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-10-15 21:01:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-10-15 21:01:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-10-15 21:01:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-10-15 21:01:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-10-15 21:01:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-10-15 21:01:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-15 21:01:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-15 21:01:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:01:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:01:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-10-15 21:01:14,816 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-10-15 21:01:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:01:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-10-15 21:01:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-10-15 21:01:14,816 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-10-15 21:01:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-10-15 21:01:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:01:14,817 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:01:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-10-15 21:01:14,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-10-15 21:01:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-15 21:01:14,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-15 21:01:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:01:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-10-15 21:01:14,818 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-10-15 21:01:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-10-15 21:01:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-10-15 21:01:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:01:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:01:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:01:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:01:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:01:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-10-15 21:01:14,820 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-10-15 21:01:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-10-15 21:01:14,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-10-15 21:01:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:01:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-10-15 21:01:14,821 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-10-15 21:01:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-10-15 21:01:14,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-10-15 21:01:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-10-15 21:01:14,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-10-15 21:01:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-15 21:01:14,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-15 21:01:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-10-15 21:01:14,822 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-10-15 21:01:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-15 21:01:14,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-15 21:01:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-15 21:01:14,823 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-15 21:01:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:01:14,823 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:01:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-15 21:01:14,823 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-15 21:01:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-10-15 21:01:14,823 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-10-15 21:01:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:01:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:01:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-10-15 21:01:14,824 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-10-15 21:01:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:01:14,824 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:01:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-10-15 21:01:14,825 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-10-15 21:01:14,825 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-15 21:01:14,825 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-15 21:01:14,825 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-10-15 21:01:14,825 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-10-15 21:01:14,825 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-15 21:01:14,825 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-15 21:01:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-10-15 21:01:14,826 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-10-15 21:01:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:01:14,826 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:01:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-15 21:01:14,826 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-15 21:01:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-10-15 21:01:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-10-15 21:01:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-10-15 21:01:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-10-15 21:01:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:01:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:01:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-15 21:01:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-15 21:01:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-10-15 21:01:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-10-15 21:01:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-15 21:01:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-15 21:01:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-10-15 21:01:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-10-15 21:01:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:01:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-10-15 21:01:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-10-15 21:01:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-10-15 21:01:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-10-15 21:01:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:01:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:01:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:01:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-15 21:01:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-10-15 21:01:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:01:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:01:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:01:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:01:15,638 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:01:15,643 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:01:40,503 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:01:40,527 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:01:40,528 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:01:40,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:01:40 BoogieIcfgContainer [2022-10-15 21:01:40,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:01:40,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:01:40,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:01:40,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:01:40,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:01:10" (1/3) ... [2022-10-15 21:01:40,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670ea234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:01:40, skipping insertion in model container [2022-10-15 21:01:40,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:01:13" (2/3) ... [2022-10-15 21:01:40,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670ea234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:01:40, skipping insertion in model container [2022-10-15 21:01:40,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:01:40" (3/3) ... [2022-10-15 21:01:40,546 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2022-10-15 21:01:40,576 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:01:40,576 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-10-15 21:01:40,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:01:40,703 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;@1f416471, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:01:40,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-10-15 21:01:40,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 1324 states, 917 states have (on average 1.4220283533260631) internal successors, (1304), 980 states have internal predecessors, (1304), 317 states have call successors, (317), 65 states have call predecessors, (317), 65 states have return successors, (317), 314 states have call predecessors, (317), 317 states have call successors, (317) [2022-10-15 21:01:40,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-15 21:01:40,741 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:01:40,743 INFO L195 NwaCegarLoop]: trace histogram [2, 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 21:01:40,744 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [printer_setupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printer_setupErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printer_setupErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 21:01:40,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:01:40,751 INFO L85 PathProgramCache]: Analyzing trace with hash 546072791, now seen corresponding path program 1 times [2022-10-15 21:01:40,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:01:40,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995818520] [2022-10-15 21:01:40,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:01:40,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:01:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:41,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:01:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:41,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-15 21:01:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:41,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:01:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:41,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:01:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:41,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:01:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:41,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-15 21:01:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:01:41,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:01:41,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995818520] [2022-10-15 21:01:42,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995818520] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:01:42,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:01:42,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:01:42,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846740525] [2022-10-15 21:01:42,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:01:42,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:01:42,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:01:42,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:01:42,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:01:42,068 INFO L87 Difference]: Start difference. First operand has 1324 states, 917 states have (on average 1.4220283533260631) internal successors, (1304), 980 states have internal predecessors, (1304), 317 states have call successors, (317), 65 states have call predecessors, (317), 65 states have return successors, (317), 314 states have call predecessors, (317), 317 states have call successors, (317) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:01:44,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:01:48,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:01:48,288 INFO L93 Difference]: Finished difference Result 2871 states and 4311 transitions. [2022-10-15 21:01:48,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:01:48,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2022-10-15 21:01:48,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:01:48,364 INFO L225 Difference]: With dead ends: 2871 [2022-10-15 21:01:48,364 INFO L226 Difference]: Without dead ends: 1511 [2022-10-15 21:01:48,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:01:48,399 INFO L413 NwaCegarLoop]: 1750 mSDtfsCounter, 724 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 365 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:01:48,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 2544 Invalid, 745 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [365 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-10-15 21:01:48,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2022-10-15 21:01:48,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1210. [2022-10-15 21:01:48,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 840 states have (on average 1.35) internal successors, (1134), 880 states have internal predecessors, (1134), 292 states have call successors, (292), 62 states have call predecessors, (292), 62 states have return successors, (292), 289 states have call predecessors, (292), 292 states have call successors, (292) [2022-10-15 21:01:48,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1718 transitions. [2022-10-15 21:01:48,643 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1718 transitions. Word has length 49 [2022-10-15 21:01:48,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:01:48,645 INFO L495 AbstractCegarLoop]: Abstraction has 1210 states and 1718 transitions. [2022-10-15 21:01:48,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:01:48,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1718 transitions. [2022-10-15 21:01:48,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-15 21:01:48,650 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:01:48,651 INFO L195 NwaCegarLoop]: trace histogram [2, 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 21:01:48,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:01:48,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [printer_setupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printer_setupErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printer_setupErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 21:01:48,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:01:48,653 INFO L85 PathProgramCache]: Analyzing trace with hash 261644976, now seen corresponding path program 1 times [2022-10-15 21:01:48,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:01:48,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943501328] [2022-10-15 21:01:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:01:48,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:01:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:50,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:01:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:50,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-15 21:01:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:50,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:01:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:50,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:01:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:50,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:01:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:50,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-15 21:01:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:01:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:01:50,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:01:50,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943501328] [2022-10-15 21:01:50,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943501328] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:01:50,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:01:50,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 21:01:50,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969740425] [2022-10-15 21:01:50,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:01:50,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:01:50,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:01:50,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:01:50,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:01:50,699 INFO L87 Difference]: Start difference. First operand 1210 states and 1718 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:01:52,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []