/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 19:29:06,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 19:29:06,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 19:29:06,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 19:29:06,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 19:29:06,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 19:29:06,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 19:29:06,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 19:29:06,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 19:29:06,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 19:29:06,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 19:29:06,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 19:29:06,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 19:29:06,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 19:29:06,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 19:29:06,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 19:29:06,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 19:29:06,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 19:29:06,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 19:29:06,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 19:29:06,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 19:29:06,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 19:29:06,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 19:29:06,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 19:29:06,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 19:29:06,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 19:29:06,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 19:29:06,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 19:29:06,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 19:29:06,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 19:29:06,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 19:29:06,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 19:29:06,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 19:29:06,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 19:29:06,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 19:29:06,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 19:29:06,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 19:29:06,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 19:29:06,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 19:29:06,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 19:29:06,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 19:29:06,351 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-08-21 19:29:06,390 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 19:29:06,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 19:29:06,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 19:29:06,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 19:29:06,393 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 19:29:06,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 19:29:06,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 19:29:06,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 19:29:06,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 19:29:06,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 19:29:06,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 19:29:06,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 19:29:06,395 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 19:29:06,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 19:29:06,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 19:29:06,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 19:29:06,396 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 19:29:06,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 19:29:06,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 19:29:06,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 19:29:06,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 19:29:06,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 19:29:06,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 19:29:06,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 19:29:06,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 19:29:06,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 19:29:06,398 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-21 19:29:06,398 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-08-21 19:29:06,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 19:29:06,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 19:29:06,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 19:29:06,697 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 19:29:06,698 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 19:29:06,699 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-08-21 19:29:06,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b04eb7838/348f55f99b374ced8a4b6ab0f80d7d99/FLAGfed7f1f2b [2020-08-21 19:29:07,570 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 19:29:07,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-08-21 19:29:07,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b04eb7838/348f55f99b374ced8a4b6ab0f80d7d99/FLAGfed7f1f2b [2020-08-21 19:29:08,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b04eb7838/348f55f99b374ced8a4b6ab0f80d7d99 [2020-08-21 19:29:08,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 19:29:08,141 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 19:29:08,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 19:29:08,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 19:29:08,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 19:29:08,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:29:08" (1/1) ... [2020-08-21 19:29:08,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a8c36e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:29:08, skipping insertion in model container [2020-08-21 19:29:08,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:29:08" (1/1) ... [2020-08-21 19:29:08,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 19:29:08,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 19:29:09,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:29:09,765 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 19:29:10,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:29:10,129 INFO L208 MainTranslator]: Completed translation [2020-08-21 19:29:10,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:29:10 WrapperNode [2020-08-21 19:29:10,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 19:29:10,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 19:29:10,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 19:29:10,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 19:29:10,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:29:10" (1/1) ... [2020-08-21 19:29:10,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:29:10" (1/1) ... [2020-08-21 19:29:10,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:29:10" (1/1) ... [2020-08-21 19:29:10,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:29:10" (1/1) ... [2020-08-21 19:29:10,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:29:10" (1/1) ... [2020-08-21 19:29:10,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:29:10" (1/1) ... [2020-08-21 19:29:10,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:29:10" (1/1) ... [2020-08-21 19:29:10,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 19:29:10,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 19:29:10,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 19:29:10,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 19:29:10,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:29:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 19:29:10,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 19:29:10,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 19:29:10,520 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 19:29:10,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-21 19:29:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-21 19:29:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-08-21 19:29:10,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-08-21 19:29:10,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-21 19:29:10,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-21 19:29:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-21 19:29:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2020-08-21 19:29:10,524 INFO L138 BoogieDeclarations]: Found implementation of procedure m5632_recover [2020-08-21 19:29:10,524 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_prereset [2020-08-21 19:29:10,524 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_postreset [2020-08-21 19:29:10,524 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_subset_driver_init [2020-08-21 19:29:10,525 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_subset_driver_exit [2020-08-21 19:29:10,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-08-21 19:29:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 19:29:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-08-21 19:29:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2020-08-21 19:29:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_7 [2020-08-21 19:29:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_8 [2020-08-21 19:29:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-08-21 19:29:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2020-08-21 19:29:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_11 [2020-08-21 19:29:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_12 [2020-08-21 19:29:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___ldv_usb_unlock_device_13 [2020-08-21 19:29:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2020-08-21 19:29:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2020-08-21 19:29:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-21 19:29:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2020-08-21 19:29:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-08-21 19:29:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-08-21 19:29:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-08-21 19:29:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-08-21 19:29:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2020-08-21 19:29:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2020-08-21 19:29:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2020-08-21 19:29:10,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2020-08-21 19:29:10,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2020-08-21 19:29:10,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2020-08-21 19:29:10,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2020-08-21 19:29:10,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2020-08-21 19:29:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2020-08-21 19:29:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2020-08-21 19:29:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2020-08-21 19:29:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-08-21 19:29:10,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-08-21 19:29:10,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-08-21 19:29:10,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-08-21 19:29:10,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-08-21 19:29:10,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-08-21 19:29:10,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-08-21 19:29:10,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2020-08-21 19:29:10,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2020-08-21 19:29:10,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2020-08-21 19:29:10,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2020-08-21 19:29:10,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-08-21 19:29:10,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-08-21 19:29:10,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-08-21 19:29:10,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-08-21 19:29:10,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-08-21 19:29:10,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-08-21 19:29:10,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-08-21 19:29:10,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2020-08-21 19:29:10,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2020-08-21 19:29:10,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2020-08-21 19:29:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2020-08-21 19:29:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_udev [2020-08-21 19:29:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_udev [2020-08-21 19:29:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2020-08-21 19:29:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_udev [2020-08-21 19:29:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_udev [2020-08-21 19:29:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_udev [2020-08-21 19:29:10,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_udev [2020-08-21 19:29:10,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_udev [2020-08-21 19:29:10,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_udev [2020-08-21 19:29:10,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_udev [2020-08-21 19:29:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_udev [2020-08-21 19:29:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-21 19:29:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_usb_unlock_device [2020-08-21 19:29:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-21 19:29:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-08-21 19:29:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-08-21 19:29:10,544 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-08-21 19:29:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-08-21 19:29:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-08-21 19:29:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-08-21 19:29:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2020-08-21 19:29:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-08-21 19:29:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-08-21 19:29:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-08-21 19:29:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-08-21 19:29:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-21 19:29:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-08-21 19:29:10,547 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-21 19:29:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 19:29:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-08-21 19:29:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-08-21 19:29:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_8 [2020-08-21 19:29:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-08-21 19:29:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2020-08-21 19:29:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-08-21 19:29:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2020-08-21 19:29:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 19:29:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 19:29:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 19:29:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-21 19:29:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 19:29:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 19:29:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-21 19:29:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 19:29:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-21 19:29:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-21 19:29:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-08-21 19:29:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-08-21 19:29:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-08-21 19:29:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-21 19:29:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-21 19:29:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-21 19:29:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_usb_unlock_device [2020-08-21 19:29:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___ldv_usb_unlock_device_13 [2020-08-21 19:29:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-08-21 19:29:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-08-21 19:29:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_7 [2020-08-21 19:29:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_11 [2020-08-21 19:29:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2020-08-21 19:29:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2020-08-21 19:29:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-08-21 19:29:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-08-21 19:29:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-08-21 19:29:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-08-21 19:29:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-08-21 19:29:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_udev [2020-08-21 19:29:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_udev [2020-08-21 19:29:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-08-21 19:29:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_12 [2020-08-21 19:29:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2020-08-21 19:29:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-08-21 19:29:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2020-08-21 19:29:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-08-21 19:29:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2020-08-21 19:29:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-08-21 19:29:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-08-21 19:29:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-08-21 19:29:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-08-21 19:29:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2020-08-21 19:29:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure m5632_recover [2020-08-21 19:29:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 19:29:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 19:29:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_prereset [2020-08-21 19:29:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_postreset [2020-08-21 19:29:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_subset_driver_init [2020-08-21 19:29:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_subset_driver_exit [2020-08-21 19:29:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-21 19:29:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-08-21 19:29:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-21 19:29:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 19:29:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 19:29:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 19:29:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-21 19:29:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2020-08-21 19:29:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-08-21 19:29:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-08-21 19:29:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-08-21 19:29:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-08-21 19:29:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2020-08-21 19:29:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2020-08-21 19:29:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2020-08-21 19:29:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2020-08-21 19:29:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2020-08-21 19:29:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2020-08-21 19:29:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2020-08-21 19:29:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2020-08-21 19:29:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2020-08-21 19:29:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-08-21 19:29:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-08-21 19:29:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-08-21 19:29:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-08-21 19:29:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-08-21 19:29:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2020-08-21 19:29:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2020-08-21 19:29:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2020-08-21 19:29:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2020-08-21 19:29:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-08-21 19:29:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-08-21 19:29:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-08-21 19:29:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-08-21 19:29:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2020-08-21 19:29:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2020-08-21 19:29:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2020-08-21 19:29:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2020-08-21 19:29:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_udev [2020-08-21 19:29:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_udev [2020-08-21 19:29:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2020-08-21 19:29:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_udev [2020-08-21 19:29:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_udev [2020-08-21 19:29:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_udev [2020-08-21 19:29:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_udev [2020-08-21 19:29:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_udev [2020-08-21 19:29:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_udev [2020-08-21 19:29:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 19:29:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-21 19:29:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 19:29:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 19:29:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-21 19:29:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 19:29:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 19:29:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 19:29:11,192 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-21 19:29:13,110 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 19:29:13,113 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 19:29:13,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:29:13 BoogieIcfgContainer [2020-08-21 19:29:13,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 19:29:13,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 19:29:13,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 19:29:13,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 19:29:13,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 07:29:08" (1/3) ... [2020-08-21 19:29:13,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572f737c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:29:13, skipping insertion in model container [2020-08-21 19:29:13,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:29:10" (2/3) ... [2020-08-21 19:29:13,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572f737c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:29:13, skipping insertion in model container [2020-08-21 19:29:13,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:29:13" (3/3) ... [2020-08-21 19:29:13,139 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-08-21 19:29:13,150 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 19:29:13,159 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 19:29:13,173 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 19:29:13,198 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 19:29:13,198 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 19:29:13,199 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 19:29:13,199 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 19:29:13,199 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 19:29:13,199 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 19:29:13,199 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 19:29:13,199 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 19:29:13,227 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states. [2020-08-21 19:29:13,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-21 19:29:13,243 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:29:13,244 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:29:13,244 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:29:13,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:29:13,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1903613762, now seen corresponding path program 1 times [2020-08-21 19:29:13,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:29:13,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114394052] [2020-08-21 19:29:13,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:29:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,525 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-21 19:29:14,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:29:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 19:29:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 19:29:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-21 19:29:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-21 19:29:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:14,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:15,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:15,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 19:29:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:15,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:15,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:15,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 19:29:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:15,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 19:29:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:15,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:15,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-21 19:29:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:15,245 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-08-21 19:29:15,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114394052] [2020-08-21 19:29:15,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:29:15,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:29:15,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369490990] [2020-08-21 19:29:15,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:29:15,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:29:15,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:29:15,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:29:15,274 INFO L87 Difference]: Start difference. First operand 480 states. Second operand 6 states. [2020-08-21 19:29:15,668 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-21 19:29:19,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:29:19,650 INFO L93 Difference]: Finished difference Result 553 states and 733 transitions. [2020-08-21 19:29:19,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 19:29:19,652 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2020-08-21 19:29:19,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:29:19,667 INFO L225 Difference]: With dead ends: 553 [2020-08-21 19:29:19,667 INFO L226 Difference]: Without dead ends: 271 [2020-08-21 19:29:19,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-21 19:29:19,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-08-21 19:29:19,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 253. [2020-08-21 19:29:19,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-08-21 19:29:19,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 315 transitions. [2020-08-21 19:29:19,779 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 315 transitions. Word has length 138 [2020-08-21 19:29:19,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:29:19,779 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 315 transitions. [2020-08-21 19:29:19,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:29:19,779 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 315 transitions. [2020-08-21 19:29:19,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-21 19:29:19,784 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:29:19,784 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:29:19,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 19:29:19,785 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:29:19,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:29:19,786 INFO L82 PathProgramCache]: Analyzing trace with hash 568155594, now seen corresponding path program 1 times [2020-08-21 19:29:19,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:29:19,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181928846] [2020-08-21 19:29:19,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:29:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,444 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-21 19:29:20,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:29:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 19:29:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 19:29:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-21 19:29:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-21 19:29:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 19:29:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 19:29:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 19:29:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-21 19:29:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-08-21 19:29:20,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181928846] [2020-08-21 19:29:20,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:29:20,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 19:29:20,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252822849] [2020-08-21 19:29:20,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:29:20,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:29:20,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:29:20,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:29:20,828 INFO L87 Difference]: Start difference. First operand 253 states and 315 transitions. Second operand 7 states. [2020-08-21 19:29:21,145 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-21 19:29:23,648 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-21 19:29:24,038 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-21 19:29:26,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:29:26,598 INFO L93 Difference]: Finished difference Result 647 states and 816 transitions. [2020-08-21 19:29:26,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 19:29:26,604 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-08-21 19:29:26,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:29:26,609 INFO L225 Difference]: With dead ends: 647 [2020-08-21 19:29:26,610 INFO L226 Difference]: Without dead ends: 426 [2020-08-21 19:29:26,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-08-21 19:29:26,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-08-21 19:29:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 384. [2020-08-21 19:29:26,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-08-21 19:29:26,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 491 transitions. [2020-08-21 19:29:26,678 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 491 transitions. Word has length 138 [2020-08-21 19:29:26,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:29:26,679 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 491 transitions. [2020-08-21 19:29:26,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:29:26,679 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 491 transitions. [2020-08-21 19:29:26,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-08-21 19:29:26,682 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:29:26,682 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:29:26,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 19:29:26,683 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:29:26,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:29:26,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1957018819, now seen corresponding path program 1 times [2020-08-21 19:29:26,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:29:26,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567474743] [2020-08-21 19:29:26,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:29:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,334 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-21 19:29:27,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:29:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 19:29:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 19:29:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-21 19:29:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-21 19:29:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 19:29:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 19:29:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 19:29:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-21 19:29:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:29:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:27,823 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-08-21 19:29:27,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567474743] [2020-08-21 19:29:27,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:29:27,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 19:29:27,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123903258] [2020-08-21 19:29:27,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 19:29:27,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:29:27,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 19:29:27,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 19:29:27,827 INFO L87 Difference]: Start difference. First operand 384 states and 491 transitions. Second operand 8 states. [2020-08-21 19:29:28,164 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-21 19:29:32,715 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-21 19:29:33,518 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-21 19:29:35,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:29:35,513 INFO L93 Difference]: Finished difference Result 1035 states and 1342 transitions. [2020-08-21 19:29:35,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 19:29:35,514 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-08-21 19:29:35,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:29:35,520 INFO L225 Difference]: With dead ends: 1035 [2020-08-21 19:29:35,520 INFO L226 Difference]: Without dead ends: 683 [2020-08-21 19:29:35,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2020-08-21 19:29:35,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2020-08-21 19:29:35,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 649. [2020-08-21 19:29:35,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-08-21 19:29:35,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 844 transitions. [2020-08-21 19:29:35,611 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 844 transitions. Word has length 141 [2020-08-21 19:29:35,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:29:35,612 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 844 transitions. [2020-08-21 19:29:35,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 19:29:35,612 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 844 transitions. [2020-08-21 19:29:35,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-21 19:29:35,615 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:29:35,615 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:29:35,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 19:29:35,615 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:29:35,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:29:35,616 INFO L82 PathProgramCache]: Analyzing trace with hash -2115073202, now seen corresponding path program 1 times [2020-08-21 19:29:35,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:29:35,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698271346] [2020-08-21 19:29:35,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:29:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,165 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-21 19:29:36,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:29:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 19:29:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 19:29:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-21 19:29:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-21 19:29:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 19:29:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 19:29:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 19:29:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-21 19:29:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:36,753 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-21 19:29:36,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698271346] [2020-08-21 19:29:36,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:29:36,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 19:29:36,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096102243] [2020-08-21 19:29:36,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 19:29:36,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:29:36,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 19:29:36,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:29:36,758 INFO L87 Difference]: Start difference. First operand 649 states and 844 transitions. Second operand 9 states. [2020-08-21 19:29:37,180 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-21 19:29:40,279 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-21 19:29:40,640 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-21 19:29:42,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:29:42,456 INFO L93 Difference]: Finished difference Result 701 states and 907 transitions. [2020-08-21 19:29:42,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 19:29:42,457 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-08-21 19:29:42,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:29:42,463 INFO L225 Difference]: With dead ends: 701 [2020-08-21 19:29:42,463 INFO L226 Difference]: Without dead ends: 690 [2020-08-21 19:29:42,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-08-21 19:29:42,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2020-08-21 19:29:42,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 649. [2020-08-21 19:29:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-08-21 19:29:42,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 843 transitions. [2020-08-21 19:29:42,543 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 843 transitions. Word has length 167 [2020-08-21 19:29:42,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:29:42,543 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 843 transitions. [2020-08-21 19:29:42,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 19:29:42,544 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 843 transitions. [2020-08-21 19:29:42,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-21 19:29:42,546 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:29:42,546 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:29:42,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 19:29:42,547 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:29:42,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:29:42,547 INFO L82 PathProgramCache]: Analyzing trace with hash -2057814900, now seen corresponding path program 1 times [2020-08-21 19:29:42,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:29:42,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357423223] [2020-08-21 19:29:42,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:29:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,219 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-21 19:29:43,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:29:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 19:29:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 19:29:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-21 19:29:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-21 19:29:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 19:29:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 19:29:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 19:29:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-21 19:29:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-21 19:29:43,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357423223] [2020-08-21 19:29:43,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:29:43,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 19:29:43,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280761471] [2020-08-21 19:29:43,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 19:29:43,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:29:43,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 19:29:43,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:29:43,639 INFO L87 Difference]: Start difference. First operand 649 states and 843 transitions. Second operand 9 states. [2020-08-21 19:29:43,955 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-21 19:29:46,603 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-21 19:29:46,966 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-21 19:29:48,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:29:48,693 INFO L93 Difference]: Finished difference Result 681 states and 881 transitions. [2020-08-21 19:29:48,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 19:29:48,694 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-08-21 19:29:48,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:29:48,700 INFO L225 Difference]: With dead ends: 681 [2020-08-21 19:29:48,700 INFO L226 Difference]: Without dead ends: 678 [2020-08-21 19:29:48,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-08-21 19:29:48,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-08-21 19:29:48,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 648. [2020-08-21 19:29:48,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-08-21 19:29:48,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 841 transitions. [2020-08-21 19:29:48,811 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 841 transitions. Word has length 167 [2020-08-21 19:29:48,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:29:48,813 INFO L479 AbstractCegarLoop]: Abstraction has 648 states and 841 transitions. [2020-08-21 19:29:48,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 19:29:48,813 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 841 transitions. [2020-08-21 19:29:48,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-08-21 19:29:48,819 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:29:48,820 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:29:48,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 19:29:48,820 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:29:48,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:29:48,821 INFO L82 PathProgramCache]: Analyzing trace with hash 632050949, now seen corresponding path program 1 times [2020-08-21 19:29:48,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:29:48,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235195513] [2020-08-21 19:29:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:29:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,528 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-21 19:29:49,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:29:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 19:29:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 19:29:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-21 19:29:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-21 19:29:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 19:29:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 19:29:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 19:29:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-21 19:29:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:49,966 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-21 19:29:49,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235195513] [2020-08-21 19:29:49,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:29:49,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 19:29:49,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410086653] [2020-08-21 19:29:49,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 19:29:49,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:29:49,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 19:29:49,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:29:49,970 INFO L87 Difference]: Start difference. First operand 648 states and 841 transitions. Second operand 9 states. [2020-08-21 19:29:50,286 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-21 19:29:53,604 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-21 19:29:53,975 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-21 19:29:55,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:29:55,872 INFO L93 Difference]: Finished difference Result 680 states and 879 transitions. [2020-08-21 19:29:55,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 19:29:55,873 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2020-08-21 19:29:55,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:29:55,878 INFO L225 Difference]: With dead ends: 680 [2020-08-21 19:29:55,878 INFO L226 Difference]: Without dead ends: 677 [2020-08-21 19:29:55,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-08-21 19:29:55,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2020-08-21 19:29:55,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 647. [2020-08-21 19:29:55,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-08-21 19:29:55,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 839 transitions. [2020-08-21 19:29:55,952 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 839 transitions. Word has length 168 [2020-08-21 19:29:55,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:29:55,953 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 839 transitions. [2020-08-21 19:29:55,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 19:29:55,953 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 839 transitions. [2020-08-21 19:29:55,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-08-21 19:29:55,956 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:29:55,956 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:29:55,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 19:29:55,956 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:29:55,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:29:55,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1881448785, now seen corresponding path program 1 times [2020-08-21 19:29:55,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:29:55,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178461176] [2020-08-21 19:29:55,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:29:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,494 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-21 19:29:56,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:29:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 19:29:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 19:29:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-21 19:29:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-21 19:29:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 19:29:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 19:29:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 19:29:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-21 19:29:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:56,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:57,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:57,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:57,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:57,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:29:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:57,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:29:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:29:57,222 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-21 19:29:57,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178461176] [2020-08-21 19:29:57,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:29:57,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 19:29:57,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532589124] [2020-08-21 19:29:57,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 19:29:57,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:29:57,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 19:29:57,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:29:57,225 INFO L87 Difference]: Start difference. First operand 647 states and 839 transitions. Second operand 9 states. [2020-08-21 19:29:57,733 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-21 19:30:00,734 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-21 19:30:01,063 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-21 19:30:02,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:30:02,610 INFO L93 Difference]: Finished difference Result 679 states and 877 transitions. [2020-08-21 19:30:02,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 19:30:02,611 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-08-21 19:30:02,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:30:02,618 INFO L225 Difference]: With dead ends: 679 [2020-08-21 19:30:02,618 INFO L226 Difference]: Without dead ends: 676 [2020-08-21 19:30:02,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-08-21 19:30:02,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2020-08-21 19:30:02,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 646. [2020-08-21 19:30:02,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2020-08-21 19:30:02,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 837 transitions. [2020-08-21 19:30:02,698 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 837 transitions. Word has length 169 [2020-08-21 19:30:02,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:30:02,699 INFO L479 AbstractCegarLoop]: Abstraction has 646 states and 837 transitions. [2020-08-21 19:30:02,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 19:30:02,699 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 837 transitions. [2020-08-21 19:30:02,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-08-21 19:30:02,701 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:30:02,701 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:30:02,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 19:30:02,702 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:30:02,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:30:02,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1804442952, now seen corresponding path program 1 times [2020-08-21 19:30:02,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:30:02,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409784070] [2020-08-21 19:30:02,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:30:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,149 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-21 19:30:03,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:30:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:30:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:30:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:30:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 19:30:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:30:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:30:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 19:30:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:30:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:30:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-21 19:30:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:30:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:30:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-21 19:30:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:30:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:30:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 19:30:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:30:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:30:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 19:30:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 19:30:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:30:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-21 19:30:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:30:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:30:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:30:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:30:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 19:30:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:30:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:30:03,598 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-21 19:30:03,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409784070] [2020-08-21 19:30:03,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:30:03,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 19:30:03,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006789811] [2020-08-21 19:30:03,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 19:30:03,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:30:03,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 19:30:03,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:30:03,600 INFO L87 Difference]: Start difference. First operand 646 states and 837 transitions. Second operand 9 states. [2020-08-21 19:30:03,899 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 241