/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 04:39:03,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 04:39:03,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 04:39:03,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 04:39:03,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 04:39:03,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 04:39:03,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 04:39:03,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 04:39:03,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 04:39:03,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 04:39:03,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 04:39:03,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 04:39:03,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 04:39:03,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 04:39:03,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 04:39:03,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 04:39:03,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 04:39:03,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 04:39:03,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 04:39:03,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 04:39:03,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 04:39:03,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 04:39:03,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 04:39:03,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 04:39:03,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 04:39:03,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 04:39:03,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 04:39:03,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 04:39:03,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 04:39:03,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 04:39:03,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 04:39:03,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 04:39:03,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 04:39:03,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 04:39:03,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 04:39:03,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 04:39:03,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 04:39:03,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 04:39:03,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 04:39:03,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 04:39:03,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 04:39:03,406 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 04:39:03,434 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 04:39:03,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 04:39:03,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 04:39:03,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 04:39:03,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 04:39:03,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 04:39:03,436 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 04:39:03,436 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 04:39:03,436 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 04:39:03,436 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 04:39:03,437 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 04:39:03,437 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 04:39:03,437 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 04:39:03,437 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 04:39:03,437 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 04:39:03,438 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 04:39:03,438 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 04:39:03,438 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 04:39:03,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 04:39:03,439 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 04:39:03,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 04:39:03,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 04:39:03,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 04:39:03,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 04:39:03,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 04:39:03,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 04:39:03,440 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 04:39:03,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 04:39:03,440 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 04:39:03,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 04:39:03,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 04:39:03,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 04:39:03,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:39:03,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 04:39:03,441 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 04:39:03,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 04:39:03,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 04:39:03,442 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 04:39:03,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 04:39:03,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 04:39:03,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 04:39:03,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 04:39:03,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 04:39:03,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 04:39:03,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 04:39:03,717 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 04:39:03,718 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 04:39:03,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2023-04-03 04:39:04,938 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 04:39:05,340 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 04:39:05,341 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2023-04-03 04:39:05,373 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86139cf77/975ba9b28b944411894dd706229d02a0/FLAGb6443320b [2023-04-03 04:39:05,390 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86139cf77/975ba9b28b944411894dd706229d02a0 [2023-04-03 04:39:05,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 04:39:05,395 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 04:39:05,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 04:39:05,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 04:39:05,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 04:39:05,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:39:05" (1/1) ... [2023-04-03 04:39:05,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8aef48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:39:05, skipping insertion in model container [2023-04-03 04:39:05,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:39:05" (1/1) ... [2023-04-03 04:39:05,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 04:39:05,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 04:39:06,091 WARN L247 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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2023-04-03 04:39:06,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:39:06,459 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 04:39:06,529 WARN L247 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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2023-04-03 04:39:06,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:39:06,703 INFO L208 MainTranslator]: Completed translation [2023-04-03 04:39:06,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:39:06 WrapperNode [2023-04-03 04:39:06,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 04:39:06,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 04:39:06,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 04:39:06,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 04:39:06,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:39:06" (1/1) ... [2023-04-03 04:39:06,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:39:06" (1/1) ... [2023-04-03 04:39:06,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:39:06" (1/1) ... [2023-04-03 04:39:06,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:39:06" (1/1) ... [2023-04-03 04:39:06,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:39:06" (1/1) ... [2023-04-03 04:39:06,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:39:06" (1/1) ... [2023-04-03 04:39:06,937 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:39:06" (1/1) ... [2023-04-03 04:39:06,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:39:06" (1/1) ... [2023-04-03 04:39:06,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 04:39:06,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 04:39:06,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 04:39:06,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 04:39:06,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:39:06" (1/1) ... [2023-04-03 04:39:06,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:39:06,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:39:07,014 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) [2023-04-03 04:39:07,037 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 [2023-04-03 04:39:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 04:39:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 04:39:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 04:39:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 04:39:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-04-03 04:39:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2023-04-03 04:39:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-04-03 04:39:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-04-03 04:39:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-03 04:39:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 04:39:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 04:39:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 04:39:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 04:39:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 04:39:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 04:39:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 04:39:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 04:39:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 04:39:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 04:39:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 04:39:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-03 04:39:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-04-03 04:39:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2023-04-03 04:39:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2023-04-03 04:39:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-04-03 04:39:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-04-03 04:39:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2023-04-03 04:39:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2023-04-03 04:39:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2023-04-03 04:39:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_hid_report_descriptor [2023-04-03 04:39:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_open [2023-04-03 04:39:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_close [2023-04-03 04:39:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_setup_caps [2023-04-03 04:39:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_urb_callback [2023-04-03 04:39:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_probe [2023-04-03 04:39:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2023-04-03 04:39:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_init [2023-04-03 04:39:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_exit [2023-04-03 04:39:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2023-04-03 04:39:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 04:39:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-03 04:39:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2023-04-03 04:39:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2023-04-03 04:39:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_4 [2023-04-03 04:39:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2023-04-03 04:39:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2023-04-03 04:39:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2023-04-03 04:39:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2023-04-03 04:39:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_9 [2023-04-03 04:39:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2023-04-03 04:39:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_11 [2023-04-03 04:39:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_12 [2023-04-03 04:39:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-04-03 04:39:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2023-04-03 04:39:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2023-04-03 04:39:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2023-04-03 04:39:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-04-03 04:39:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-04-03 04:39:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2023-04-03 04:39:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2023-04-03 04:39:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-04-03 04:39:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2023-04-03 04:39:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2023-04-03 04:39:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2023-04-03 04:39:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-04-03 04:39:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-04-03 04:39:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2023-04-03 04:39:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2023-04-03 04:39:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 04:39:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-03 04:39:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2023-04-03 04:39:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-03 04:39:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-03 04:39:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 04:39:07,068 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 04:39:07,068 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-04-03 04:39:07,068 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-04-03 04:39:07,068 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-04-03 04:39:07,068 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-04-03 04:39:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-04-03 04:39:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 04:39:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-04-03 04:39:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-04-03 04:39:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-04-03 04:39:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-03 04:39:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-04-03 04:39:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-03 04:39:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-03 04:39:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 04:39:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 04:39:07,071 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-04-03 04:39:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 04:39:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 04:39:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 04:39:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 04:39:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 04:39:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 04:39:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 04:39:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2023-04-03 04:39:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-04-03 04:39:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-04-03 04:39:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 04:39:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2023-04-03 04:39:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-04-03 04:39:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-03 04:39:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-03 04:39:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 04:39:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 04:39:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-03 04:39:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-03 04:39:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_9 [2023-04-03 04:39:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2023-04-03 04:39:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2023-04-03 04:39:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-03 04:39:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_4 [2023-04-03 04:39:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-04-03 04:39:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 04:39:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 04:39:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-03 04:39:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_11 [2023-04-03 04:39:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-03 04:39:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_12 [2023-04-03 04:39:07,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2023-04-03 04:39:07,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2023-04-03 04:39:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2023-04-03 04:39:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2023-04-03 04:39:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2023-04-03 04:39:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2023-04-03 04:39:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-03 04:39:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-04-03 04:39:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-04-03 04:39:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-04-03 04:39:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-03 04:39:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-04-03 04:39:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-04-03 04:39:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2023-04-03 04:39:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-04-03 04:39:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2023-04-03 04:39:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2023-04-03 04:39:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2023-04-03 04:39:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 04:39:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-04-03 04:39:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure parse_hid_report_descriptor [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_open [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_close [2023-04-03 04:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_setup_caps [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_urb_callback [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_probe [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_init [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_exit [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2023-04-03 04:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-04-03 04:39:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-04-03 04:39:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2023-04-03 04:39:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2023-04-03 04:39:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 04:39:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 04:39:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 04:39:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 04:39:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 04:39:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 04:39:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 04:39:07,591 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 04:39:07,596 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 04:39:07,674 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 04:39:08,627 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-04-03 04:39:09,780 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 04:39:10,336 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 04:39:10,336 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-04-03 04:39:10,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:39:10 BoogieIcfgContainer [2023-04-03 04:39:10,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 04:39:10,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 04:39:10,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 04:39:10,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 04:39:10,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 04:39:05" (1/3) ... [2023-04-03 04:39:10,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703ef7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:39:10, skipping insertion in model container [2023-04-03 04:39:10,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:39:06" (2/3) ... [2023-04-03 04:39:10,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703ef7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:39:10, skipping insertion in model container [2023-04-03 04:39:10,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:39:10" (3/3) ... [2023-04-03 04:39:10,348 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2023-04-03 04:39:10,363 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 04:39:10,364 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 04:39:10,418 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 04:39:10,423 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;@762fe571, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 04:39:10,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 04:39:10,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 750 states, 453 states have (on average 1.304635761589404) internal successors, (591), 474 states have internal predecessors, (591), 212 states have call successors, (212), 79 states have call predecessors, (212), 77 states have return successors, (205), 203 states have call predecessors, (205), 205 states have call successors, (205) [2023-04-03 04:39:10,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-04-03 04:39:10,440 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:39:10,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:39:10,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:39:10,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:39:10,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1454875911, now seen corresponding path program 1 times [2023-04-03 04:39:10,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:39:10,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724822565] [2023-04-03 04:39:10,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:39:10,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:39:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:39:10,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:39:10,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:39:11,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724822565] [2023-04-03 04:39:11,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724822565] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:39:11,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:39:11,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:39:11,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126222646] [2023-04-03 04:39:11,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:39:11,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:39:11,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:39:11,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:39:11,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:11,058 INFO L87 Difference]: Start difference. First operand has 750 states, 453 states have (on average 1.304635761589404) internal successors, (591), 474 states have internal predecessors, (591), 212 states have call successors, (212), 79 states have call predecessors, (212), 77 states have return successors, (205), 203 states have call predecessors, (205), 205 states have call successors, (205) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-03 04:39:12,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:39:12,083 INFO L93 Difference]: Finished difference Result 1742 states and 2400 transitions. [2023-04-03 04:39:12,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:39:12,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 36 [2023-04-03 04:39:12,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:39:12,104 INFO L225 Difference]: With dead ends: 1742 [2023-04-03 04:39:12,104 INFO L226 Difference]: Without dead ends: 1130 [2023-04-03 04:39:12,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:12,117 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 749 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-03 04:39:12,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 1432 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-03 04:39:12,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2023-04-03 04:39:12,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1130. [2023-04-03 04:39:12,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 698 states have (on average 1.2922636103151863) internal successors, (902), 706 states have internal predecessors, (902), 310 states have call successors, (310), 124 states have call predecessors, (310), 121 states have return successors, (303), 303 states have call predecessors, (303), 303 states have call successors, (303) [2023-04-03 04:39:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1515 transitions. [2023-04-03 04:39:12,273 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1515 transitions. Word has length 36 [2023-04-03 04:39:12,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:39:12,274 INFO L495 AbstractCegarLoop]: Abstraction has 1130 states and 1515 transitions. [2023-04-03 04:39:12,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-03 04:39:12,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1515 transitions. [2023-04-03 04:39:12,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-04-03 04:39:12,282 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:39:12,282 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-04-03 04:39:12,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 04:39:12,283 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:39:12,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:39:12,284 INFO L85 PathProgramCache]: Analyzing trace with hash 365820599, now seen corresponding path program 1 times [2023-04-03 04:39:12,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:39:12,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618290772] [2023-04-03 04:39:12,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:39:12,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:39:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:39:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-03 04:39:12,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:39:12,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618290772] [2023-04-03 04:39:12,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618290772] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:39:12,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:39:12,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:39:12,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405272083] [2023-04-03 04:39:12,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:39:12,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:39:12,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:39:12,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:39:12,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:12,982 INFO L87 Difference]: Start difference. First operand 1130 states and 1515 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 04:39:13,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:39:13,582 INFO L93 Difference]: Finished difference Result 1473 states and 1914 transitions. [2023-04-03 04:39:13,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:39:13,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 49 [2023-04-03 04:39:13,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:39:13,592 INFO L225 Difference]: With dead ends: 1473 [2023-04-03 04:39:13,592 INFO L226 Difference]: Without dead ends: 1470 [2023-04-03 04:39:13,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:13,594 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 215 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:39:13,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 1405 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 04:39:13,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2023-04-03 04:39:13,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1458. [2023-04-03 04:39:13,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 888 states have (on average 1.2668918918918919) internal successors, (1125), 900 states have internal predecessors, (1125), 389 states have call successors, (389), 188 states have call predecessors, (389), 180 states have return successors, (383), 375 states have call predecessors, (383), 381 states have call successors, (383) [2023-04-03 04:39:13,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1897 transitions. [2023-04-03 04:39:13,664 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1897 transitions. Word has length 49 [2023-04-03 04:39:13,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:39:13,664 INFO L495 AbstractCegarLoop]: Abstraction has 1458 states and 1897 transitions. [2023-04-03 04:39:13,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 04:39:13,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1897 transitions. [2023-04-03 04:39:13,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-04-03 04:39:13,666 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:39:13,666 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-04-03 04:39:13,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 04:39:13,666 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:39:13,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:39:13,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1545062961, now seen corresponding path program 1 times [2023-04-03 04:39:13,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:39:13,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789847206] [2023-04-03 04:39:13,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:39:13,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:39:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:39:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-03 04:39:14,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:39:14,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789847206] [2023-04-03 04:39:14,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789847206] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:39:14,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:39:14,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:39:14,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190258352] [2023-04-03 04:39:14,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:39:14,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:39:14,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:39:14,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:39:14,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:14,092 INFO L87 Difference]: Start difference. First operand 1458 states and 1897 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 04:39:14,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:39:14,986 INFO L93 Difference]: Finished difference Result 3190 states and 4122 transitions. [2023-04-03 04:39:14,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:39:14,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 50 [2023-04-03 04:39:14,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:39:14,995 INFO L225 Difference]: With dead ends: 3190 [2023-04-03 04:39:14,996 INFO L226 Difference]: Without dead ends: 1753 [2023-04-03 04:39:15,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:15,002 INFO L413 NwaCegarLoop]: 707 mSDtfsCounter, 185 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-03 04:39:15,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1403 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-03 04:39:15,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2023-04-03 04:39:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1743. [2023-04-03 04:39:15,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1055 states have (on average 1.2521327014218009) internal successors, (1321), 1071 states have internal predecessors, (1321), 454 states have call successors, (454), 246 states have call predecessors, (454), 233 states have return successors, (451), 433 states have call predecessors, (451), 445 states have call successors, (451) [2023-04-03 04:39:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2226 transitions. [2023-04-03 04:39:15,094 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2226 transitions. Word has length 50 [2023-04-03 04:39:15,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:39:15,095 INFO L495 AbstractCegarLoop]: Abstraction has 1743 states and 2226 transitions. [2023-04-03 04:39:15,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 04:39:15,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2226 transitions. [2023-04-03 04:39:15,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-03 04:39:15,096 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:39:15,096 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-04-03 04:39:15,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 04:39:15,097 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:39:15,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:39:15,106 INFO L85 PathProgramCache]: Analyzing trace with hash -652906310, now seen corresponding path program 1 times [2023-04-03 04:39:15,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:39:15,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218770138] [2023-04-03 04:39:15,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:39:15,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:39:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:39:15,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-03 04:39:15,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:39:15,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218770138] [2023-04-03 04:39:15,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218770138] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:39:15,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:39:15,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:39:15,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931699009] [2023-04-03 04:39:15,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:39:15,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:39:15,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:39:15,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:39:15,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:15,305 INFO L87 Difference]: Start difference. First operand 1743 states and 2226 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 04:39:15,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:39:15,993 INFO L93 Difference]: Finished difference Result 1751 states and 2233 transitions. [2023-04-03 04:39:15,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:39:15,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 51 [2023-04-03 04:39:15,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:39:16,004 INFO L225 Difference]: With dead ends: 1751 [2023-04-03 04:39:16,007 INFO L226 Difference]: Without dead ends: 1748 [2023-04-03 04:39:16,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:16,011 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 182 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 04:39:16,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 1400 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 04:39:16,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2023-04-03 04:39:16,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1744. [2023-04-03 04:39:16,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1056 states have (on average 1.2518939393939394) internal successors, (1322), 1072 states have internal predecessors, (1322), 454 states have call successors, (454), 246 states have call predecessors, (454), 233 states have return successors, (451), 433 states have call predecessors, (451), 445 states have call successors, (451) [2023-04-03 04:39:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2227 transitions. [2023-04-03 04:39:16,127 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2227 transitions. Word has length 51 [2023-04-03 04:39:16,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:39:16,128 INFO L495 AbstractCegarLoop]: Abstraction has 1744 states and 2227 transitions. [2023-04-03 04:39:16,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 04:39:16,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2227 transitions. [2023-04-03 04:39:16,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-03 04:39:16,129 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:39:16,129 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-04-03 04:39:16,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 04:39:16,129 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:39:16,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:39:16,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1234150962, now seen corresponding path program 1 times [2023-04-03 04:39:16,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:39:16,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807073268] [2023-04-03 04:39:16,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:39:16,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:39:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:39:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-03 04:39:16,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:39:16,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807073268] [2023-04-03 04:39:16,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807073268] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:39:16,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:39:16,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:39:16,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719190845] [2023-04-03 04:39:16,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:39:16,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:39:16,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:39:16,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:39:16,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:16,266 INFO L87 Difference]: Start difference. First operand 1744 states and 2227 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 04:39:16,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:39:16,677 INFO L93 Difference]: Finished difference Result 1746 states and 2228 transitions. [2023-04-03 04:39:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:39:16,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-04-03 04:39:16,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:39:16,686 INFO L225 Difference]: With dead ends: 1746 [2023-04-03 04:39:16,686 INFO L226 Difference]: Without dead ends: 1743 [2023-04-03 04:39:16,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:16,688 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 764 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:39:16,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 707 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 04:39:16,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2023-04-03 04:39:16,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1743. [2023-04-03 04:39:16,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1056 states have (on average 1.2509469696969697) internal successors, (1321), 1071 states have internal predecessors, (1321), 453 states have call successors, (453), 246 states have call predecessors, (453), 233 states have return successors, (451), 433 states have call predecessors, (451), 445 states have call successors, (451) [2023-04-03 04:39:16,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2225 transitions. [2023-04-03 04:39:16,771 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2225 transitions. Word has length 52 [2023-04-03 04:39:16,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:39:16,771 INFO L495 AbstractCegarLoop]: Abstraction has 1743 states and 2225 transitions. [2023-04-03 04:39:16,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 04:39:16,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2225 transitions. [2023-04-03 04:39:16,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-03 04:39:16,772 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:39:16,772 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-04-03 04:39:16,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 04:39:16,773 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:39:16,773 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:39:16,773 INFO L85 PathProgramCache]: Analyzing trace with hash -396610883, now seen corresponding path program 1 times [2023-04-03 04:39:16,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:39:16,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615395678] [2023-04-03 04:39:16,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:39:16,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:39:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:39:16,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-03 04:39:16,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:39:16,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615395678] [2023-04-03 04:39:16,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615395678] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:39:16,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:39:16,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:39:16,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986171368] [2023-04-03 04:39:16,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:39:16,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:39:16,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:39:16,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:39:16,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:16,887 INFO L87 Difference]: Start difference. First operand 1743 states and 2225 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 04:39:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:39:17,250 INFO L93 Difference]: Finished difference Result 1745 states and 2226 transitions. [2023-04-03 04:39:17,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:39:17,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-04-03 04:39:17,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:39:17,266 INFO L225 Difference]: With dead ends: 1745 [2023-04-03 04:39:17,267 INFO L226 Difference]: Without dead ends: 1725 [2023-04-03 04:39:17,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:17,268 INFO L413 NwaCegarLoop]: 705 mSDtfsCounter, 761 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:39:17,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 706 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 04:39:17,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2023-04-03 04:39:17,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1725. [2023-04-03 04:39:17,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1046 states have (on average 1.2504780114722753) internal successors, (1308), 1060 states have internal predecessors, (1308), 448 states have call successors, (448), 242 states have call predecessors, (448), 230 states have return successors, (448), 430 states have call predecessors, (448), 442 states have call successors, (448) [2023-04-03 04:39:17,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2204 transitions. [2023-04-03 04:39:17,396 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2204 transitions. Word has length 53 [2023-04-03 04:39:17,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:39:17,397 INFO L495 AbstractCegarLoop]: Abstraction has 1725 states and 2204 transitions. [2023-04-03 04:39:17,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 04:39:17,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2204 transitions. [2023-04-03 04:39:17,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-03 04:39:17,406 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:39:17,406 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:39:17,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 04:39:17,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:39:17,407 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:39:17,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1005410406, now seen corresponding path program 1 times [2023-04-03 04:39:17,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:39:17,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563909646] [2023-04-03 04:39:17,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:39:17,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:39:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:39:17,611 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-03 04:39:17,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:39:17,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563909646] [2023-04-03 04:39:17,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563909646] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:39:17,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:39:17,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:39:17,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627354362] [2023-04-03 04:39:17,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:39:17,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:39:17,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:39:17,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:39:17,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:17,614 INFO L87 Difference]: Start difference. First operand 1725 states and 2204 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-03 04:39:18,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:39:18,306 INFO L93 Difference]: Finished difference Result 2746 states and 3507 transitions. [2023-04-03 04:39:18,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:39:18,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 152 [2023-04-03 04:39:18,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:39:18,312 INFO L225 Difference]: With dead ends: 2746 [2023-04-03 04:39:18,312 INFO L226 Difference]: Without dead ends: 1042 [2023-04-03 04:39:18,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:39:18,319 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 66 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 04:39:18,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1393 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 04:39:18,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2023-04-03 04:39:18,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 993. [2023-04-03 04:39:18,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 616 states have (on average 1.2646103896103895) internal successors, (779), 624 states have internal predecessors, (779), 243 states have call successors, (243), 141 states have call predecessors, (243), 133 states have return successors, (240), 231 states have call predecessors, (240), 237 states have call successors, (240) [2023-04-03 04:39:18,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1262 transitions. [2023-04-03 04:39:18,379 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1262 transitions. Word has length 152 [2023-04-03 04:39:18,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:39:18,379 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1262 transitions. [2023-04-03 04:39:18,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-03 04:39:18,379 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1262 transitions. [2023-04-03 04:39:18,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-03 04:39:18,383 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:39:18,383 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:39:18,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 04:39:18,383 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:39:18,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:39:18,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1922441288, now seen corresponding path program 1 times [2023-04-03 04:39:18,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:39:18,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786265779] [2023-04-03 04:39:18,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:39:18,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:39:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:39:19,575 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-03 04:39:19,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:39:19,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786265779] [2023-04-03 04:39:19,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786265779] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:39:19,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084028837] [2023-04-03 04:39:19,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:39:19,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:39:19,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:39:19,583 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 04:39:19,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 04:39:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:39:20,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 2828 conjuncts, 49 conjunts are in the unsatisfiable core [2023-04-03 04:39:20,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:39:20,378 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-03 04:39:20,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 04:39:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-03 04:39:21,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084028837] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 04:39:21,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1295418531] [2023-04-03 04:39:21,032 INFO L159 IcfgInterpreter]: Started Sifa with 135 locations of interest [2023-04-03 04:39:21,032 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 04:39:21,036 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 04:39:21,040 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 04:39:21,040 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 04:39:35,189 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 130 for LOIs [2023-04-03 04:39:40,670 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 144 for LOIs [2023-04-03 04:39:42,971 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-04-03 04:39:43,341 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-04-03 04:40:14,761 WARN L223 SmtUtils]: Spent 30.74s on a formula simplification. DAG size of input: 7525 DAG size of output: 151 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:40:46,015 WARN L223 SmtUtils]: Spent 29.89s on a formula simplification. DAG size of input: 7573 DAG size of output: 186 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:40:47,759 INFO L197 IcfgInterpreter]: Interpreting procedure gtco_driverinfo_table_exit with input of size 100 for LOIs [2023-04-03 04:40:47,903 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_usb_deregister_12 with input of size 104 for LOIs [2023-04-03 04:40:48,153 INFO L197 IcfgInterpreter]: Interpreting procedure usb_deregister with input of size 102 for LOIs [2023-04-03 04:40:48,178 INFO L197 IcfgInterpreter]: Interpreting procedure gtco_driverinfo_table_init with input of size 110 for LOIs [2023-04-03 04:40:48,465 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_usb_register_driver_11 with input of size 125 for LOIs [2023-04-03 04:40:49,087 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_usb_driver_1 with input of size 106 for LOIs [2023-04-03 04:40:49,274 INFO L197 IcfgInterpreter]: Interpreting procedure usb_register_driver with input of size 108 for LOIs [2023-04-03 04:40:49,298 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_initialize with input of size 93 for LOIs [2023-04-03 04:40:49,310 INFO L197 IcfgInterpreter]: Interpreting procedure gtco_probe with input of size 137 for LOIs [2023-04-03 04:40:49,762 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-04-03 04:40:50,722 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-04-03 04:40:52,108 INFO L197 IcfgInterpreter]: Interpreting procedure input_allocate_device with input of size 100 for LOIs [2023-04-03 04:40:52,231 INFO L197 IcfgInterpreter]: Interpreting procedure kzalloc with input of size 104 for LOIs [2023-04-03 04:41:01,605 WARN L223 SmtUtils]: Spent 8.91s on a formula simplification. DAG size of input: 4330 DAG size of output: 126 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:41:10,504 WARN L223 SmtUtils]: Spent 8.85s on a formula simplification. DAG size of input: 4330 DAG size of output: 126 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:41:10,614 INFO L197 IcfgInterpreter]: Interpreting procedure kmalloc with input of size 132 for LOIs [2023-04-03 04:41:11,323 INFO L197 IcfgInterpreter]: Interpreting procedure __kmalloc with input of size 132 for LOIs [2023-04-03 04:41:11,987 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 132 for LOIs [2023-04-03 04:41:12,257 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 102 for LOIs [2023-04-03 04:41:12,419 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_final_state with input of size 94 for LOIs [2023-04-03 04:41:12,437 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 04:41:30,708 WARN L223 SmtUtils]: Spent 17.74s on a formula simplification that was a NOOP. DAG size: 1712 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:41:56,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1295418531] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:56,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-03 04:41:56,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [11, 11, 11] total 91 [2023-04-03 04:41:56,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160389391] [2023-04-03 04:41:56,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:56,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2023-04-03 04:41:56,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:56,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2023-04-03 04:41:56,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=7925, Unknown=0, NotChecked=0, Total=8190 [2023-04-03 04:41:56,641 INFO L87 Difference]: Start difference. First operand 993 states and 1262 transitions. Second operand has 73 states, 50 states have (on average 1.58) internal successors, (79), 47 states have internal predecessors, (79), 21 states have call successors, (32), 19 states have call predecessors, (32), 16 states have return successors, (29), 18 states have call predecessors, (29), 19 states have call successors, (29) [2023-04-03 04:42:38,556 WARN L223 SmtUtils]: Spent 40.95s on a formula simplification. DAG size of input: 1827 DAG size of output: 1808 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)