/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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 04:46:57,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 04:46:57,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 04:46:57,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 04:46:57,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 04:46:57,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 04:46:57,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 04:46:57,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 04:46:57,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 04:46:57,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 04:46:57,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 04:46:57,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 04:46:57,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 04:46:57,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 04:46:57,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 04:46:57,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 04:46:57,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 04:46:57,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 04:46:57,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 04:46:57,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 04:46:57,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 04:46:57,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 04:46:57,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 04:46:57,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 04:46:57,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 04:46:57,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 04:46:57,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 04:46:57,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 04:46:57,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 04:46:57,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 04:46:57,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 04:46:57,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 04:46:57,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 04:46:57,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 04:46:57,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 04:46:57,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 04:46:57,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 04:46:57,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 04:46:57,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 04:46:57,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 04:46:57,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 04:46:57,474 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 04:46:57,499 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 04:46:57,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 04:46:57,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 04:46:57,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 04:46:57,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 04:46:57,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 04:46:57,500 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 04:46:57,500 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 04:46:57,500 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 04:46:57,501 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 04:46:57,501 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 04:46:57,501 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 04:46:57,501 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 04:46:57,501 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 04:46:57,501 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 04:46:57,502 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 04:46:57,502 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 04:46:57,502 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 04:46:57,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 04:46:57,502 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 04:46:57,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 04:46:57,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 04:46:57,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 04:46:57,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 04:46:57,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 04:46:57,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 04:46:57,503 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 04:46:57,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 04:46:57,503 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 04:46:57,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 04:46:57,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 04:46:57,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 04:46:57,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:46:57,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 04:46:57,504 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 04:46:57,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 04:46:57,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 04:46:57,504 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 04:46:57,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 04:46:57,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 04:46:57,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 04:46:57,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 04:46:57,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 04:46:57,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 04:46:57,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 04:46:57,685 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 04:46:57,686 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 04:46:57,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2023-04-03 04:46:58,651 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 04:46:59,010 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 04:46:59,010 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2023-04-03 04:46:59,034 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d2cb15fe/d47f430ecf0146cc8274c3bd8839c67b/FLAGa5c7716bb [2023-04-03 04:46:59,252 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d2cb15fe/d47f430ecf0146cc8274c3bd8839c67b [2023-04-03 04:46:59,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 04:46:59,256 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 04:46:59,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 04:46:59,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 04:46:59,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 04:46:59,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:46:59" (1/1) ... [2023-04-03 04:46:59,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b55ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:46:59, skipping insertion in model container [2023-04-03 04:46:59,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:46:59" (1/1) ... [2023-04-03 04:46:59,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 04:46:59,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 04:46:59,790 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i[159401,159414] [2023-04-03 04:47:00,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:47:00,035 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 04:47:00,136 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i[159401,159414] [2023-04-03 04:47:00,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:47:00,211 INFO L208 MainTranslator]: Completed translation [2023-04-03 04:47:00,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:00 WrapperNode [2023-04-03 04:47:00,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 04:47:00,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 04:47:00,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 04:47:00,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 04:47:00,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:00" (1/1) ... [2023-04-03 04:47:00,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:00" (1/1) ... [2023-04-03 04:47:00,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:00" (1/1) ... [2023-04-03 04:47:00,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:00" (1/1) ... [2023-04-03 04:47:00,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:00" (1/1) ... [2023-04-03 04:47:00,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:00" (1/1) ... [2023-04-03 04:47:00,296 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:00" (1/1) ... [2023-04-03 04:47:00,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:00" (1/1) ... [2023-04-03 04:47:00,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 04:47:00,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 04:47:00,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 04:47:00,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 04:47:00,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:00" (1/1) ... [2023-04-03 04:47:00,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:47:00,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:47:00,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 04:47:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 04:47:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 04:47:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 04:47:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 04:47:00,358 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 04:47:00,358 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 04:47:00,358 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2023-04-03 04:47:00,358 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_cmd [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_bind [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_unbind [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_rx_fixup [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_tx_fixup [2023-04-03 04:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_driver_init [2023-04-03 04:47:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_driver_exit [2023-04-03 04:47:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2023-04-03 04:47:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2023-04-03 04:47:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 04:47:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2023-04-03 04:47:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2023-04-03 04:47:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2023-04-03 04:47:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2023-04-03 04:47:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2023-04-03 04:47:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2023-04-03 04:47:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2023-04-03 04:47:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2023-04-03 04:47:00,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 04:47:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2023-04-03 04:47:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-04-03 04:47:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-04-03 04:47:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2023-04-03 04:47:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2023-04-03 04:47:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 04:47:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 04:47:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 04:47:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 04:47:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-04-03 04:47:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 04:47:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-04-03 04:47:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2023-04-03 04:47:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2023-04-03 04:47:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2023-04-03 04:47:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2023-04-03 04:47:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 04:47:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2023-04-03 04:47:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-03 04:47:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-03 04:47:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2023-04-03 04:47:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2023-04-03 04:47:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-04-03 04:47:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-04-03 04:47:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-03 04:47:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-04-03 04:47:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-04-03 04:47:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-03 04:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-03 04:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2023-04-03 04:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2023-04-03 04:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2023-04-03 04:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2023-04-03 04:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2023-04-03 04:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2023-04-03 04:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2023-04-03 04:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 04:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 04:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 04:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 04:47:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 04:47:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 04:47:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 04:47:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 04:47:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 04:47:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 04:47:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 04:47:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 04:47:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2023-04-03 04:47:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-03 04:47:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-04-03 04:47:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-04-03 04:47:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2023-04-03 04:47:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 04:47:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-04-03 04:47:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-04-03 04:47:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-04-03 04:47:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 04:47:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 04:47:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 04:47:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 04:47:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 04:47:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 04:47:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 04:47:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 04:47:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 04:47:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 04:47:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 04:47:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-03 04:47:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2023-04-03 04:47:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2023-04-03 04:47:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2023-04-03 04:47:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-04-03 04:47:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-03 04:47:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2023-04-03 04:47:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-03 04:47:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2023-04-03 04:47:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-04-03 04:47:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2023-04-03 04:47:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-03 04:47:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_cmd [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_bind [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_unbind [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_rx_fixup [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_tx_fixup [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_driver_init [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_driver_exit [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2023-04-03 04:47:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2023-04-03 04:47:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 04:47:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 04:47:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 04:47:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 04:47:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 04:47:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 04:47:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 04:47:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 04:47:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 04:47:00,692 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 04:47:00,694 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 04:47:00,761 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 04:47:01,971 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 04:47:02,085 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 04:47:02,085 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-03 04:47:02,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:47:02 BoogieIcfgContainer [2023-04-03 04:47:02,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 04:47:02,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 04:47:02,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 04:47:02,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 04:47:02,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 04:46:59" (1/3) ... [2023-04-03 04:47:02,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c30efaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:47:02, skipping insertion in model container [2023-04-03 04:47:02,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:00" (2/3) ... [2023-04-03 04:47:02,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c30efaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:47:02, skipping insertion in model container [2023-04-03 04:47:02,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:47:02" (3/3) ... [2023-04-03 04:47:02,096 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2023-04-03 04:47:02,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 04:47:02,107 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 04:47:02,159 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 04:47:02,164 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;@72313cc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 04:47:02,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 04:47:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 391 states, 237 states have (on average 1.3248945147679325) internal successors, (314), 245 states have internal predecessors, (314), 96 states have call successors, (96), 54 states have call predecessors, (96), 53 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-04-03 04:47:02,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-03 04:47:02,190 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:02,191 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-03 04:47:02,191 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:02,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:02,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1303480945, now seen corresponding path program 1 times [2023-04-03 04:47:02,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:02,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216549754] [2023-04-03 04:47:02,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:02,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-03 04:47:02,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:02,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216549754] [2023-04-03 04:47:02,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216549754] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:02,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:47:02,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:47:02,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401779722] [2023-04-03 04:47:02,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:02,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:47:02,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:02,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:47:02,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:47:02,670 INFO L87 Difference]: Start difference. First operand has 391 states, 237 states have (on average 1.3248945147679325) internal successors, (314), 245 states have internal predecessors, (314), 96 states have call successors, (96), 54 states have call predecessors, (96), 53 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-03 04:47:04,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:04,072 INFO L93 Difference]: Finished difference Result 1058 states and 1403 transitions. [2023-04-03 04:47:04,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:47:04,075 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), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2023-04-03 04:47:04,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:04,091 INFO L225 Difference]: With dead ends: 1058 [2023-04-03 04:47:04,091 INFO L226 Difference]: Without dead ends: 677 [2023-04-03 04:47:04,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:47:04,103 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 425 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:47:04,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 871 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 04:47:04,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2023-04-03 04:47:04,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 677. [2023-04-03 04:47:04,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 427 states have (on average 1.31615925058548) internal successors, (562), 429 states have internal predecessors, (562), 162 states have call successors, (162), 90 states have call predecessors, (162), 87 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2023-04-03 04:47:04,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 883 transitions. [2023-04-03 04:47:04,203 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 883 transitions. Word has length 53 [2023-04-03 04:47:04,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:47:04,203 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 883 transitions. [2023-04-03 04:47:04,203 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), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-03 04:47:04,203 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 883 transitions. [2023-04-03 04:47:04,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-03 04:47:04,206 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:04,206 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-03 04:47:04,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 04:47:04,206 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:04,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:04,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1303051793, now seen corresponding path program 1 times [2023-04-03 04:47:04,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:04,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265125639] [2023-04-03 04:47:04,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:04,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:04,490 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-03 04:47:04,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:04,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265125639] [2023-04-03 04:47:04,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265125639] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:04,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:47:04,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 04:47:04,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345116529] [2023-04-03 04:47:04,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:04,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 04:47:04,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:04,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 04:47:04,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 04:47:04,493 INFO L87 Difference]: Start difference. First operand 677 states and 883 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-04-03 04:47:06,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:06,711 INFO L93 Difference]: Finished difference Result 1338 states and 1757 transitions. [2023-04-03 04:47:06,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 04:47:06,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2023-04-03 04:47:06,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:06,718 INFO L225 Difference]: With dead ends: 1338 [2023-04-03 04:47:06,718 INFO L226 Difference]: Without dead ends: 1317 [2023-04-03 04:47:06,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-03 04:47:06,720 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 454 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:47:06,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 2125 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-03 04:47:06,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2023-04-03 04:47:06,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1317. [2023-04-03 04:47:06,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1317 states, 837 states have (on average 1.3178016726403823) internal successors, (1103), 843 states have internal predecessors, (1103), 311 states have call successors, (311), 169 states have call predecessors, (311), 168 states have return successors, (320), 308 states have call predecessors, (320), 308 states have call successors, (320) [2023-04-03 04:47:06,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1734 transitions. [2023-04-03 04:47:06,761 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1734 transitions. Word has length 67 [2023-04-03 04:47:06,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:47:06,761 INFO L495 AbstractCegarLoop]: Abstraction has 1317 states and 1734 transitions. [2023-04-03 04:47:06,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-04-03 04:47:06,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1734 transitions. [2023-04-03 04:47:06,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-04-03 04:47:06,765 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:06,765 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-04-03 04:47:06,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 04:47:06,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:06,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:06,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1341957130, now seen corresponding path program 1 times [2023-04-03 04:47:06,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:06,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206484785] [2023-04-03 04:47:06,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:06,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:06,884 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-03 04:47:06,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:06,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206484785] [2023-04-03 04:47:06,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206484785] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:06,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:47:06,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:47:06,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318360589] [2023-04-03 04:47:06,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:06,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:47:06,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:06,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:47:06,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:47:06,885 INFO L87 Difference]: Start difference. First operand 1317 states and 1734 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-03 04:47:07,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:07,475 INFO L93 Difference]: Finished difference Result 2911 states and 3827 transitions. [2023-04-03 04:47:07,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:47:07,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2023-04-03 04:47:07,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:07,482 INFO L225 Difference]: With dead ends: 2911 [2023-04-03 04:47:07,482 INFO L226 Difference]: Without dead ends: 1614 [2023-04-03 04:47:07,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:47:07,489 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 141 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:47:07,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 843 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 04:47:07,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2023-04-03 04:47:07,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1593. [2023-04-03 04:47:07,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1036 states have (on average 1.333011583011583) internal successors, (1381), 1042 states have internal predecessors, (1381), 351 states have call successors, (351), 206 states have call predecessors, (351), 205 states have return successors, (360), 348 states have call predecessors, (360), 348 states have call successors, (360) [2023-04-03 04:47:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2092 transitions. [2023-04-03 04:47:07,565 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2092 transitions. Word has length 108 [2023-04-03 04:47:07,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:47:07,566 INFO L495 AbstractCegarLoop]: Abstraction has 1593 states and 2092 transitions. [2023-04-03 04:47:07,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-03 04:47:07,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2092 transitions. [2023-04-03 04:47:07,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-04-03 04:47:07,569 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:07,569 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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] [2023-04-03 04:47:07,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 04:47:07,569 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:07,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:07,570 INFO L85 PathProgramCache]: Analyzing trace with hash 2007573229, now seen corresponding path program 1 times [2023-04-03 04:47:07,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:07,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027411098] [2023-04-03 04:47:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:07,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-04-03 04:47:07,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:07,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027411098] [2023-04-03 04:47:07,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027411098] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:07,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:47:07,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:47:07,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389316988] [2023-04-03 04:47:07,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:07,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:47:07,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:07,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:47:07,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:47:07,673 INFO L87 Difference]: Start difference. First operand 1593 states and 2092 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-03 04:47:08,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:08,749 INFO L93 Difference]: Finished difference Result 3991 states and 5229 transitions. [2023-04-03 04:47:08,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:47:08,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 146 [2023-04-03 04:47:08,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:08,759 INFO L225 Difference]: With dead ends: 3991 [2023-04-03 04:47:08,760 INFO L226 Difference]: Without dead ends: 2430 [2023-04-03 04:47:08,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:47:08,765 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 426 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-03 04:47:08,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 849 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-03 04:47:08,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2023-04-03 04:47:08,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2409. [2023-04-03 04:47:08,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2409 states, 1580 states have (on average 1.3221518987341772) internal successors, (2089), 1592 states have internal predecessors, (2089), 509 states have call successors, (509), 318 states have call predecessors, (509), 319 states have return successors, (526), 506 states have call predecessors, (526), 506 states have call successors, (526) [2023-04-03 04:47:08,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 3124 transitions. [2023-04-03 04:47:08,843 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 3124 transitions. Word has length 146 [2023-04-03 04:47:08,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:47:08,843 INFO L495 AbstractCegarLoop]: Abstraction has 2409 states and 3124 transitions. [2023-04-03 04:47:08,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-03 04:47:08,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 3124 transitions. [2023-04-03 04:47:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-04-03 04:47:08,847 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:08,847 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:47:08,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 04:47:08,847 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:08,848 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:08,848 INFO L85 PathProgramCache]: Analyzing trace with hash 699086258, now seen corresponding path program 1 times [2023-04-03 04:47:08,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:08,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333935400] [2023-04-03 04:47:08,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:08,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:09,155 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-04-03 04:47:09,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:09,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333935400] [2023-04-03 04:47:09,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333935400] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:09,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:47:09,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 04:47:09,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583880557] [2023-04-03 04:47:09,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:09,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 04:47:09,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:09,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 04:47:09,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:47:09,157 INFO L87 Difference]: Start difference. First operand 2409 states and 3124 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-03 04:47:11,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:11,004 INFO L93 Difference]: Finished difference Result 4840 states and 6333 transitions. [2023-04-03 04:47:11,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:47:11,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 161 [2023-04-03 04:47:11,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:11,013 INFO L225 Difference]: With dead ends: 4840 [2023-04-03 04:47:11,013 INFO L226 Difference]: Without dead ends: 2463 [2023-04-03 04:47:11,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:47:11,019 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 2 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-03 04:47:11,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1704 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-03 04:47:11,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2023-04-03 04:47:11,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 2449. [2023-04-03 04:47:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 1608 states have (on average 1.316542288557214) internal successors, (2117), 1624 states have internal predecessors, (2117), 509 states have call successors, (509), 318 states have call predecessors, (509), 331 states have return successors, (548), 514 states have call predecessors, (548), 506 states have call successors, (548) [2023-04-03 04:47:11,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 3174 transitions. [2023-04-03 04:47:11,104 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 3174 transitions. Word has length 161 [2023-04-03 04:47:11,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:47:11,104 INFO L495 AbstractCegarLoop]: Abstraction has 2449 states and 3174 transitions. [2023-04-03 04:47:11,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-03 04:47:11,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 3174 transitions. [2023-04-03 04:47:11,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-03 04:47:11,110 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:11,110 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:47:11,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 04:47:11,110 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:11,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:11,111 INFO L85 PathProgramCache]: Analyzing trace with hash 242914003, now seen corresponding path program 1 times [2023-04-03 04:47:11,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:11,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137863989] [2023-04-03 04:47:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:11,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:11,515 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-04-03 04:47:11,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:11,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137863989] [2023-04-03 04:47:11,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137863989] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:11,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:47:11,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-03 04:47:11,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266012712] [2023-04-03 04:47:11,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:11,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-03 04:47:11,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:11,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-03 04:47:11,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-04-03 04:47:11,518 INFO L87 Difference]: Start difference. First operand 2449 states and 3174 transitions. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 9 states have internal predecessors, (93), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 7 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-03 04:47:15,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:15,177 INFO L93 Difference]: Finished difference Result 4928 states and 6435 transitions. [2023-04-03 04:47:15,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 04:47:15,178 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 9 states have internal predecessors, (93), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 7 states have call predecessors, (28), 5 states have call successors, (28) Word has length 169 [2023-04-03 04:47:15,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:15,187 INFO L225 Difference]: With dead ends: 4928 [2023-04-03 04:47:15,187 INFO L226 Difference]: Without dead ends: 2511 [2023-04-03 04:47:15,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-04-03 04:47:15,197 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 14 mSDsluCounter, 3849 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4284 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-04-03 04:47:15,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4284 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-04-03 04:47:15,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2023-04-03 04:47:15,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2489. [2023-04-03 04:47:15,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 1636 states have (on average 1.311124694376528) internal successors, (2145), 1652 states have internal predecessors, (2145), 513 states have call successors, (513), 318 states have call predecessors, (513), 339 states have return successors, (564), 526 states have call predecessors, (564), 510 states have call successors, (564) [2023-04-03 04:47:15,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 3222 transitions. [2023-04-03 04:47:15,298 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 3222 transitions. Word has length 169 [2023-04-03 04:47:15,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:47:15,299 INFO L495 AbstractCegarLoop]: Abstraction has 2489 states and 3222 transitions. [2023-04-03 04:47:15,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 9 states have internal predecessors, (93), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 7 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-03 04:47:15,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 3222 transitions. [2023-04-03 04:47:15,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-04-03 04:47:15,304 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:15,304 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:47:15,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 04:47:15,305 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:15,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:15,307 INFO L85 PathProgramCache]: Analyzing trace with hash -503057722, now seen corresponding path program 1 times [2023-04-03 04:47:15,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:15,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388555722] [2023-04-03 04:47:15,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:15,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-04-03 04:47:15,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:15,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388555722] [2023-04-03 04:47:15,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388555722] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:47:15,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110166171] [2023-04-03 04:47:15,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:15,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:47:15,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:47:15,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 04:47:15,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 04:47:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:16,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 1631 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-03 04:47:16,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:47:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-04-03 04:47:16,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 04:47:16,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110166171] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:16,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 04:47:16,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2023-04-03 04:47:16,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920486237] [2023-04-03 04:47:16,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:16,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 04:47:16,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:16,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 04:47:16,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:47:16,087 INFO L87 Difference]: Start difference. First operand 2489 states and 3222 transitions. Second operand has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 04:47:17,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:17,401 INFO L93 Difference]: Finished difference Result 4954 states and 6420 transitions. [2023-04-03 04:47:17,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 04:47:17,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 160 [2023-04-03 04:47:17,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:17,413 INFO L225 Difference]: With dead ends: 4954 [2023-04-03 04:47:17,414 INFO L226 Difference]: Without dead ends: 2490 [2023-04-03 04:47:17,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-04-03 04:47:17,423 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 1 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:47:17,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1287 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 04:47:17,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2023-04-03 04:47:17,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2490. [2023-04-03 04:47:17,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 1637 states have (on average 1.3109346365302383) internal successors, (2146), 1653 states have internal predecessors, (2146), 513 states have call successors, (513), 318 states have call predecessors, (513), 339 states have return successors, (564), 526 states have call predecessors, (564), 510 states have call successors, (564) [2023-04-03 04:47:17,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 3223 transitions. [2023-04-03 04:47:17,521 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 3223 transitions. Word has length 160 [2023-04-03 04:47:17,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:47:17,522 INFO L495 AbstractCegarLoop]: Abstraction has 2490 states and 3223 transitions. [2023-04-03 04:47:17,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 04:47:17,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 3223 transitions. [2023-04-03 04:47:17,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-04-03 04:47:17,526 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:17,526 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:47:17,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 04:47:17,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:47:17,734 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:17,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:17,735 INFO L85 PathProgramCache]: Analyzing trace with hash 689215914, now seen corresponding path program 1 times [2023-04-03 04:47:17,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:17,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035416537] [2023-04-03 04:47:17,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:17,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:18,092 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-04-03 04:47:18,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:18,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035416537] [2023-04-03 04:47:18,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035416537] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:47:18,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318138208] [2023-04-03 04:47:18,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:18,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:47:18,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:47:18,093 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 04:47:18,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 04:47:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:18,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 1661 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-03 04:47:18,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:47:18,539 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-04-03 04:47:18,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 04:47:18,709 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-04-03 04:47:18,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318138208] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 04:47:18,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1560584730] [2023-04-03 04:47:18,734 INFO L159 IcfgInterpreter]: Started Sifa with 130 locations of interest [2023-04-03 04:47:18,735 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 04:47:18,739 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 04:47:18,742 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 04:47:18,743 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 04:47:21,598 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 148 for LOIs [2023-04-03 04:47:22,322 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 156 for LOIs [2023-04-03 04:48:01,719 WARN L223 SmtUtils]: Spent 35.54s on a formula simplification. DAG size of input: 8151 DAG size of output: 180 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:48:39,434 WARN L223 SmtUtils]: Spent 36.22s on a formula simplification. DAG size of input: 8363 DAG size of output: 191 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:49:15,945 WARN L223 SmtUtils]: Spent 34.74s on a formula simplification. DAG size of input: 8151 DAG size of output: 180 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:49:50,828 WARN L223 SmtUtils]: Spent 34.10s on a formula simplification. DAG size of input: 8314 DAG size of output: 255 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:50:25,055 WARN L223 SmtUtils]: Spent 34.16s on a formula simplification. DAG size of input: 8314 DAG size of output: 255 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:50:58,686 WARN L223 SmtUtils]: Spent 32.76s on a formula simplification. DAG size of input: 8025 DAG size of output: 224 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:51:31,421 WARN L223 SmtUtils]: Spent 32.67s on a formula simplification. DAG size of input: 8025 DAG size of output: 224 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)