/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 [2023-04-01 07:19:01,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 07:19:01,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 07:19:01,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 07:19:01,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 07:19:01,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 07:19:01,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 07:19:01,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 07:19:01,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 07:19:01,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 07:19:01,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 07:19:01,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 07:19:01,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 07:19:01,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 07:19:01,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 07:19:01,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 07:19:01,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 07:19:01,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 07:19:01,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 07:19:01,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 07:19:01,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 07:19:01,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 07:19:01,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 07:19:01,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 07:19:01,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 07:19:01,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 07:19:01,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 07:19:01,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 07:19:01,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 07:19:01,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 07:19:01,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 07:19:01,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 07:19:01,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 07:19:01,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 07:19:01,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 07:19:01,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 07:19:01,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 07:19:01,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 07:19:01,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 07:19:01,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 07:19:01,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 07:19:01,313 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 [2023-04-01 07:19:01,328 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 07:19:01,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 07:19:01,328 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 07:19:01,328 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 07:19:01,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 07:19:01,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 07:19:01,332 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 07:19:01,332 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 07:19:01,332 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 07:19:01,332 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 07:19:01,333 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 07:19:01,333 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 07:19:01,333 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 07:19:01,333 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 07:19:01,333 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 07:19:01,333 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 07:19:01,333 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 07:19:01,333 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 07:19:01,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 07:19:01,334 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 07:19:01,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 07:19:01,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 07:19:01,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 07:19:01,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 07:19:01,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 07:19:01,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 07:19:01,335 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 07:19:01,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 07:19:01,335 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 07:19:01,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 07:19:01,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 07:19:01,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 07:19:01,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 07:19:01,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 07:19:01,336 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 07:19:01,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 07:19:01,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 07:19:01,336 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 07:19:01,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 07:19:01,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 07:19:01,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 07:19:01,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 07:19:01,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 07:19:01,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 07:19:01,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 07:19:01,501 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 07:19:01,501 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 07:19:01,502 INFO L432 ainManager$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 [2023-04-01 07:19:02,508 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 07:19:02,778 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 07:19:02,779 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 [2023-04-01 07:19:02,808 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b16b7cbd/61781f0c09304840b3bbfc3addf958ef/FLAG7cc9efe04 [2023-04-01 07:19:02,820 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b16b7cbd/61781f0c09304840b3bbfc3addf958ef [2023-04-01 07:19:02,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 07:19:02,825 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 07:19:02,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 07:19:02,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 07:19:02,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 07:19:02,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:19:02" (1/1) ... [2023-04-01 07:19:02,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f58b744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:19:02, skipping insertion in model container [2023-04-01 07:19:02,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:19:02" (1/1) ... [2023-04-01 07:19:02,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 07:19:02,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 07:19:03,308 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] [2023-04-01 07:19:03,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 07:19:03,530 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 07:19:03,651 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] [2023-04-01 07:19:03,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 07:19:03,770 INFO L208 MainTranslator]: Completed translation [2023-04-01 07:19:03,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:19:03 WrapperNode [2023-04-01 07:19:03,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 07:19:03,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 07:19:03,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 07:19:03,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 07:19:03,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:19:03" (1/1) ... [2023-04-01 07:19:03,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:19:03" (1/1) ... [2023-04-01 07:19:03,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:19:03" (1/1) ... [2023-04-01 07:19:03,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:19:03" (1/1) ... [2023-04-01 07:19:03,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:19:03" (1/1) ... [2023-04-01 07:19:03,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:19:03" (1/1) ... [2023-04-01 07:19:03,898 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:19:03" (1/1) ... [2023-04-01 07:19:03,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:19:03" (1/1) ... [2023-04-01 07:19:03,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 07:19:03,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 07:19:03,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 07:19:03,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 07:19:03,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:19:03" (1/1) ... [2023-04-01 07:19:03,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 07:19:03,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 07:19:03,943 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) [2023-04-01 07:19:03,950 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 [2023-04-01 07:19:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 07:19:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 07:19:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-01 07:19:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 07:19:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-04-01 07:19:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2023-04-01 07:19:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-04-01 07:19:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-04-01 07:19:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-01 07:19:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-01 07:19:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 07:19:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-01 07:19:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 07:19:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 07:19:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 07:19:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_hid_report_descriptor [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_open [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_close [2023-04-01 07:19:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_setup_caps [2023-04-01 07:19:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_urb_callback [2023-04-01 07:19:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_probe [2023-04-01 07:19:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2023-04-01 07:19:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_init [2023-04-01 07:19:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_exit [2023-04-01 07:19:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2023-04-01 07:19:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 07:19:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-01 07:19:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2023-04-01 07:19:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2023-04-01 07:19:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_4 [2023-04-01 07:19:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2023-04-01 07:19:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2023-04-01 07:19:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2023-04-01 07:19:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2023-04-01 07:19:03,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_9 [2023-04-01 07:19:03,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2023-04-01 07:19:03,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_11 [2023-04-01 07:19:03,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_12 [2023-04-01 07:19:03,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-04-01 07:19:03,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2023-04-01 07:19:03,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2023-04-01 07:19:03,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2023-04-01 07:19:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-04-01 07:19:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-04-01 07:19:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2023-04-01 07:19:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2023-04-01 07:19:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-04-01 07:19:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-04-01 07:19:03,994 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-04-01 07:19:03,994 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-04-01 07:19:03,994 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-04-01 07:19:03,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 07:19:03,994 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-04-01 07:19:03,994 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-04-01 07:19:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-04-01 07:19:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-01 07:19:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-04-01 07:19:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-01 07:19:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-01 07:19:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 07:19:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 07:19:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-04-01 07:19:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-01 07:19:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-01 07:19:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-01 07:19:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-01 07:19:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-01 07:19:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_9 [2023-04-01 07:19:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2023-04-01 07:19:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2023-04-01 07:19:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-01 07:19:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_4 [2023-04-01 07:19:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-04-01 07:19:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 07:19:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 07:19:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-01 07:19:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_11 [2023-04-01 07:19:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-01 07:19:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_12 [2023-04-01 07:19:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2023-04-01 07:19:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2023-04-01 07:19:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2023-04-01 07:19:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2023-04-01 07:19:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2023-04-01 07:19:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2023-04-01 07:19:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-01 07:19:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-04-01 07:19:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 07:19:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-04-01 07:19:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure parse_hid_report_descriptor [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_open [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_close [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_setup_caps [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_urb_callback [2023-04-01 07:19:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_probe [2023-04-01 07:19:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2023-04-01 07:19:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_init [2023-04-01 07:19:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_exit [2023-04-01 07:19:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 07:19:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 07:19:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 07:19:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-04-01 07:19:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2023-04-01 07:19:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2023-04-01 07:19:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-01 07:19:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2023-04-01 07:19:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-04-01 07:19:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-04-01 07:19:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2023-04-01 07:19:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2023-04-01 07:19:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 07:19:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 07:19:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 07:19:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 07:19:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 07:19:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 07:19:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 07:19:04,354 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 07:19:04,356 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 07:19:04,434 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 07:19:05,091 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-04-01 07:19:06,069 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 07:19:06,468 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 07:19:06,469 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-04-01 07:19:06,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:19:06 BoogieIcfgContainer [2023-04-01 07:19:06,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 07:19:06,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 07:19:06,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 07:19:06,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 07:19:06,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 07:19:02" (1/3) ... [2023-04-01 07:19:06,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f044dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:19:06, skipping insertion in model container [2023-04-01 07:19:06,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:19:03" (2/3) ... [2023-04-01 07:19:06,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f044dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:19:06, skipping insertion in model container [2023-04-01 07:19:06,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:19:06" (3/3) ... [2023-04-01 07:19:06,479 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2023-04-01 07:19:06,490 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 07:19:06,491 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 07:19:06,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 07:19:06,552 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;@20eb09fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 07:19:06,552 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 07:19:06,559 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) [2023-04-01 07:19:06,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-04-01 07:19:06,567 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:19:06,567 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] [2023-04-01 07:19:06,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:19:06,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:19:06,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1454875911, now seen corresponding path program 1 times [2023-04-01 07:19:06,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:19:06,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548794880] [2023-04-01 07:19:06,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:19:06,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:19:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:19:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 07:19:07,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:19:07,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548794880] [2023-04-01 07:19:07,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548794880] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:19:07,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:19:07,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:19:07,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910780252] [2023-04-01 07:19:07,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:19:07,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:19:07,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:19:07,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:19:07,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:19:07,128 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) [2023-04-01 07:19:07,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:19:07,942 INFO L93 Difference]: Finished difference Result 1742 states and 2400 transitions. [2023-04-01 07:19:07,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:19:07,944 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 [2023-04-01 07:19:07,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:19:07,956 INFO L225 Difference]: With dead ends: 1742 [2023-04-01 07:19:07,957 INFO L226 Difference]: Without dead ends: 1130 [2023-04-01 07:19:07,963 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 [2023-04-01 07:19:07,965 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 749 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 07:19:07,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 1432 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 07:19:07,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2023-04-01 07:19:08,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1130. [2023-04-01 07:19:08,045 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) [2023-04-01 07:19:08,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1515 transitions. [2023-04-01 07:19:08,051 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1515 transitions. Word has length 36 [2023-04-01 07:19:08,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:19:08,051 INFO L495 AbstractCegarLoop]: Abstraction has 1130 states and 1515 transitions. [2023-04-01 07:19:08,051 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) [2023-04-01 07:19:08,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1515 transitions. [2023-04-01 07:19:08,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-04-01 07:19:08,053 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:19:08,053 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] [2023-04-01 07:19:08,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 07:19:08,054 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:19:08,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:19:08,054 INFO L85 PathProgramCache]: Analyzing trace with hash 365820599, now seen corresponding path program 1 times [2023-04-01 07:19:08,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:19:08,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175245940] [2023-04-01 07:19:08,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:19:08,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:19:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:19:08,394 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 07:19:08,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:19:08,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175245940] [2023-04-01 07:19:08,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175245940] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:19:08,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:19:08,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:19:08,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356414994] [2023-04-01 07:19:08,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:19:08,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:19:08,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:19:08,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:19:08,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:19:08,397 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) [2023-04-01 07:19:08,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:19:08,880 INFO L93 Difference]: Finished difference Result 1473 states and 1914 transitions. [2023-04-01 07:19:08,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:19:08,881 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 [2023-04-01 07:19:08,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:19:08,887 INFO L225 Difference]: With dead ends: 1473 [2023-04-01 07:19:08,888 INFO L226 Difference]: Without dead ends: 1470 [2023-04-01 07:19:08,891 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 [2023-04-01 07:19:08,892 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 215 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 07:19:08,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 1405 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 07:19:08,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2023-04-01 07:19:08,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1458. [2023-04-01 07:19:08,946 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) [2023-04-01 07:19:08,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1897 transitions. [2023-04-01 07:19:08,951 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1897 transitions. Word has length 49 [2023-04-01 07:19:08,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:19:08,952 INFO L495 AbstractCegarLoop]: Abstraction has 1458 states and 1897 transitions. [2023-04-01 07:19:08,952 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) [2023-04-01 07:19:08,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1897 transitions. [2023-04-01 07:19:08,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-04-01 07:19:08,957 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:19:08,957 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] [2023-04-01 07:19:08,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 07:19:08,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:19:08,958 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:19:08,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1545062961, now seen corresponding path program 1 times [2023-04-01 07:19:08,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:19:08,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801097580] [2023-04-01 07:19:08,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:19:08,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:19:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:19:09,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 07:19:09,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:19:09,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801097580] [2023-04-01 07:19:09,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801097580] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:19:09,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:19:09,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:19:09,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251659114] [2023-04-01 07:19:09,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:19:09,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:19:09,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:19:09,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:19:09,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:19:09,273 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) [2023-04-01 07:19:09,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:19:09,917 INFO L93 Difference]: Finished difference Result 3190 states and 4122 transitions. [2023-04-01 07:19:09,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:19:09,917 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 [2023-04-01 07:19:09,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:19:09,924 INFO L225 Difference]: With dead ends: 3190 [2023-04-01 07:19:09,924 INFO L226 Difference]: Without dead ends: 1753 [2023-04-01 07:19:09,929 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 [2023-04-01 07:19:09,931 INFO L413 NwaCegarLoop]: 707 mSDtfsCounter, 185 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 07:19:09,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1403 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-01 07:19:09,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2023-04-01 07:19:09,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1743. [2023-04-01 07:19:10,002 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) [2023-04-01 07:19:10,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2226 transitions. [2023-04-01 07:19:10,010 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2226 transitions. Word has length 50 [2023-04-01 07:19:10,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:19:10,011 INFO L495 AbstractCegarLoop]: Abstraction has 1743 states and 2226 transitions. [2023-04-01 07:19:10,011 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) [2023-04-01 07:19:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2226 transitions. [2023-04-01 07:19:10,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-01 07:19:10,013 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:19:10,013 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] [2023-04-01 07:19:10,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 07:19:10,013 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:19:10,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:19:10,014 INFO L85 PathProgramCache]: Analyzing trace with hash -652906310, now seen corresponding path program 1 times [2023-04-01 07:19:10,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:19:10,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084409859] [2023-04-01 07:19:10,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:19:10,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:19:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:19:10,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 07:19:10,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:19:10,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084409859] [2023-04-01 07:19:10,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084409859] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:19:10,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:19:10,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:19:10,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028518617] [2023-04-01 07:19:10,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:19:10,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:19:10,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:19:10,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:19:10,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:19:10,173 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) [2023-04-01 07:19:10,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:19:10,655 INFO L93 Difference]: Finished difference Result 1751 states and 2233 transitions. [2023-04-01 07:19:10,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:19:10,655 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 [2023-04-01 07:19:10,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:19:10,662 INFO L225 Difference]: With dead ends: 1751 [2023-04-01 07:19:10,662 INFO L226 Difference]: Without dead ends: 1748 [2023-04-01 07:19:10,663 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 [2023-04-01 07:19:10,664 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 182 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 07:19:10,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 1400 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 07:19:10,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2023-04-01 07:19:10,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1744. [2023-04-01 07:19:10,714 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) [2023-04-01 07:19:10,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2227 transitions. [2023-04-01 07:19:10,719 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2227 transitions. Word has length 51 [2023-04-01 07:19:10,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:19:10,720 INFO L495 AbstractCegarLoop]: Abstraction has 1744 states and 2227 transitions. [2023-04-01 07:19:10,720 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) [2023-04-01 07:19:10,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2227 transitions. [2023-04-01 07:19:10,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-01 07:19:10,721 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:19:10,721 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] [2023-04-01 07:19:10,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 07:19:10,721 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:19:10,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:19:10,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1234150962, now seen corresponding path program 1 times [2023-04-01 07:19:10,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:19:10,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971075438] [2023-04-01 07:19:10,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:19:10,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:19:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:19:10,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 07:19:10,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:19:10,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971075438] [2023-04-01 07:19:10,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971075438] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:19:10,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:19:10,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:19:10,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813243214] [2023-04-01 07:19:10,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:19:10,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:19:10,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:19:10,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:19:10,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:19:10,831 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) [2023-04-01 07:19:11,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:19:11,141 INFO L93 Difference]: Finished difference Result 1746 states and 2228 transitions. [2023-04-01 07:19:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:19:11,142 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 [2023-04-01 07:19:11,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:19:11,148 INFO L225 Difference]: With dead ends: 1746 [2023-04-01 07:19:11,148 INFO L226 Difference]: Without dead ends: 1743 [2023-04-01 07:19:11,149 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 [2023-04-01 07:19:11,150 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 764 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2023-04-01 07:19:11,150 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] [2023-04-01 07:19:11,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2023-04-01 07:19:11,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1743. [2023-04-01 07:19:11,199 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) [2023-04-01 07:19:11,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2225 transitions. [2023-04-01 07:19:11,204 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2225 transitions. Word has length 52 [2023-04-01 07:19:11,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:19:11,205 INFO L495 AbstractCegarLoop]: Abstraction has 1743 states and 2225 transitions. [2023-04-01 07:19:11,205 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) [2023-04-01 07:19:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2225 transitions. [2023-04-01 07:19:11,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-01 07:19:11,205 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:19:11,206 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] [2023-04-01 07:19:11,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 07:19:11,206 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:19:11,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:19:11,206 INFO L85 PathProgramCache]: Analyzing trace with hash -396610883, now seen corresponding path program 1 times [2023-04-01 07:19:11,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:19:11,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147917893] [2023-04-01 07:19:11,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:19:11,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:19:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:19:11,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 07:19:11,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:19:11,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147917893] [2023-04-01 07:19:11,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147917893] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:19:11,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:19:11,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:19:11,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063483706] [2023-04-01 07:19:11,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:19:11,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:19:11,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:19:11,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:19:11,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:19:11,282 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) [2023-04-01 07:19:11,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:19:11,550 INFO L93 Difference]: Finished difference Result 1745 states and 2226 transitions. [2023-04-01 07:19:11,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:19:11,550 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 [2023-04-01 07:19:11,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:19:11,556 INFO L225 Difference]: With dead ends: 1745 [2023-04-01 07:19:11,556 INFO L226 Difference]: Without dead ends: 1725 [2023-04-01 07:19:11,557 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 [2023-04-01 07:19:11,557 INFO L413 NwaCegarLoop]: 705 mSDtfsCounter, 761 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 07:19:11,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 706 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 07:19:11,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2023-04-01 07:19:11,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1725. [2023-04-01 07:19:11,612 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) [2023-04-01 07:19:11,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2204 transitions. [2023-04-01 07:19:11,618 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2204 transitions. Word has length 53 [2023-04-01 07:19:11,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:19:11,618 INFO L495 AbstractCegarLoop]: Abstraction has 1725 states and 2204 transitions. [2023-04-01 07:19:11,618 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) [2023-04-01 07:19:11,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2204 transitions. [2023-04-01 07:19:11,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-01 07:19:11,620 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:19:11,620 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] [2023-04-01 07:19:11,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 07:19:11,620 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:19:11,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:19:11,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1005410406, now seen corresponding path program 1 times [2023-04-01 07:19:11,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:19:11,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880611301] [2023-04-01 07:19:11,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:19:11,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:19:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:19:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-01 07:19:11,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:19:11,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880611301] [2023-04-01 07:19:11,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880611301] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:19:11,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:19:11,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:19:11,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053423193] [2023-04-01 07:19:11,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:19:11,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:19:11,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:19:11,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:19:11,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:19:11,755 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) [2023-04-01 07:19:12,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:19:12,239 INFO L93 Difference]: Finished difference Result 2746 states and 3507 transitions. [2023-04-01 07:19:12,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:19:12,239 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 [2023-04-01 07:19:12,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:19:12,243 INFO L225 Difference]: With dead ends: 2746 [2023-04-01 07:19:12,243 INFO L226 Difference]: Without dead ends: 1042 [2023-04-01 07:19:12,247 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 [2023-04-01 07:19:12,248 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 66 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 07:19:12,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1393 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 07:19:12,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2023-04-01 07:19:12,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 993. [2023-04-01 07:19:12,279 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) [2023-04-01 07:19:12,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1262 transitions. [2023-04-01 07:19:12,282 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1262 transitions. Word has length 152 [2023-04-01 07:19:12,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:19:12,282 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1262 transitions. [2023-04-01 07:19:12,283 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) [2023-04-01 07:19:12,283 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1262 transitions. [2023-04-01 07:19:12,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-01 07:19:12,284 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:19:12,284 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] [2023-04-01 07:19:12,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 07:19:12,284 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:19:12,285 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:19:12,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1922441288, now seen corresponding path program 1 times [2023-04-01 07:19:12,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:19:12,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75557594] [2023-04-01 07:19:12,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:19:12,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:19:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:19:13,191 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-01 07:19:13,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:19:13,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75557594] [2023-04-01 07:19:13,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75557594] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 07:19:13,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629261265] [2023-04-01 07:19:13,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:19:13,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 07:19:13,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 07:19:13,194 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) [2023-04-01 07:19:13,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 07:19:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:19:13,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 2828 conjuncts, 49 conjunts are in the unsatisfiable core [2023-04-01 07:19:13,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 07:19:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 07:19:13,980 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 07:19:14,535 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-01 07:19:14,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629261265] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 07:19:14,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [591222430] [2023-04-01 07:19:14,558 INFO L159 IcfgInterpreter]: Started Sifa with 135 locations of interest [2023-04-01 07:19:14,558 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 07:19:14,563 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 07:19:14,567 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 07:19:14,567 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 07:19:27,711 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 130 for LOIs [2023-04-01 07:19:32,828 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 144 for LOIs [2023-04-01 07:19:34,396 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-04-01 07:19:34,613 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-04-01 07:20:05,860 WARN L223 SmtUtils]: Spent 30.75s 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)