/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 -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 0.1.25-5644d1e-m [2020-08-19 02:29:52,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 02:29:52,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 02:29:52,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 02:29:52,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 02:29:52,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 02:29:52,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 02:29:52,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 02:29:52,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 02:29:52,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 02:29:52,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 02:29:52,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 02:29:52,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 02:29:52,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 02:29:52,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 02:29:52,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 02:29:52,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 02:29:52,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 02:29:52,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 02:29:52,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 02:29:52,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 02:29:52,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 02:29:52,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 02:29:52,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 02:29:52,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 02:29:52,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 02:29:52,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 02:29:52,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 02:29:52,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 02:29:52,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 02:29:52,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 02:29:52,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 02:29:52,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 02:29:52,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 02:29:52,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 02:29:52,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 02:29:52,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 02:29:52,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 02:29:52,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 02:29:52,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 02:29:52,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 02:29:52,805 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 [2020-08-19 02:29:52,828 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 02:29:52,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 02:29:52,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 02:29:52,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 02:29:52,830 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 02:29:52,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 02:29:52,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 02:29:52,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 02:29:52,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 02:29:52,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 02:29:52,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 02:29:52,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 02:29:52,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 02:29:52,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 02:29:52,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 02:29:52,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 02:29:52,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 02:29:52,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 02:29:52,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 02:29:52,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 02:29:52,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 02:29:52,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 02:29:52,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 02:29:52,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 02:29:52,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 02:29:52,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 02:29:52,834 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-19 02:29:52,834 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=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; [2020-08-19 02:29:53,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 02:29:53,183 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 02:29:53,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 02:29:53,189 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 02:29:53,189 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 02:29:53,190 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-08-19 02:29:53,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f891d755/bceabfdd337740b192d9367927a0bc2f/FLAG7f32c9a54 [2020-08-19 02:29:54,046 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 02:29:54,047 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-08-19 02:29:54,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f891d755/bceabfdd337740b192d9367927a0bc2f/FLAG7f32c9a54 [2020-08-19 02:29:54,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f891d755/bceabfdd337740b192d9367927a0bc2f [2020-08-19 02:29:54,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 02:29:54,122 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 02:29:54,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 02:29:54,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 02:29:54,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 02:29:54,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 02:29:54" (1/1) ... [2020-08-19 02:29:54,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d98a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:29:54, skipping insertion in model container [2020-08-19 02:29:54,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 02:29:54" (1/1) ... [2020-08-19 02:29:54,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 02:29:54,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 02:29:55,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 02:29:55,959 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 02:29:56,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 02:29:56,411 INFO L208 MainTranslator]: Completed translation [2020-08-19 02:29:56,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:29:56 WrapperNode [2020-08-19 02:29:56,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 02:29:56,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 02:29:56,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 02:29:56,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 02:29:56,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:29:56" (1/1) ... [2020-08-19 02:29:56,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:29:56" (1/1) ... [2020-08-19 02:29:56,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:29:56" (1/1) ... [2020-08-19 02:29:56,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:29:56" (1/1) ... [2020-08-19 02:29:56,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:29:56" (1/1) ... [2020-08-19 02:29:56,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:29:56" (1/1) ... [2020-08-19 02:29:56,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:29:56" (1/1) ... [2020-08-19 02:29:56,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 02:29:56,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 02:29:56,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 02:29:56,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 02:29:56,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:29:56" (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 [2020-08-19 02:29:56,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 02:29:56,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 02:29:56,738 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 02:29:56,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-19 02:29:56,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-19 02:29:56,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-08-19 02:29:56,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-08-19 02:29:56,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-19 02:29:56,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-19 02:29:56,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-19 02:29:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2020-08-19 02:29:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure m5632_recover [2020-08-19 02:29:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_prereset [2020-08-19 02:29:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_postreset [2020-08-19 02:29:56,741 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_subset_driver_init [2020-08-19 02:29:56,741 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_subset_driver_exit [2020-08-19 02:29:56,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-08-19 02:29:56,741 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 02:29:56,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-08-19 02:29:56,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2020-08-19 02:29:56,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_7 [2020-08-19 02:29:56,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_8 [2020-08-19 02:29:56,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-08-19 02:29:56,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2020-08-19 02:29:56,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_11 [2020-08-19 02:29:56,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_12 [2020-08-19 02:29:56,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___ldv_usb_unlock_device_13 [2020-08-19 02:29:56,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2020-08-19 02:29:56,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2020-08-19 02:29:56,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-19 02:29:56,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2020-08-19 02:29:56,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-08-19 02:29:56,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-08-19 02:29:56,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-08-19 02:29:56,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-08-19 02:29:56,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2020-08-19 02:29:56,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2020-08-19 02:29:56,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2020-08-19 02:29:56,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2020-08-19 02:29:56,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2020-08-19 02:29:56,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2020-08-19 02:29:56,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2020-08-19 02:29:56,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2020-08-19 02:29:56,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2020-08-19 02:29:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2020-08-19 02:29:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2020-08-19 02:29:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-08-19 02:29:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-08-19 02:29:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-08-19 02:29:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-08-19 02:29:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-08-19 02:29:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-08-19 02:29:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-08-19 02:29:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2020-08-19 02:29:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2020-08-19 02:29:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2020-08-19 02:29:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2020-08-19 02:29:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-08-19 02:29:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-08-19 02:29:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-08-19 02:29:56,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-08-19 02:29:56,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-08-19 02:29:56,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-08-19 02:29:56,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-08-19 02:29:56,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2020-08-19 02:29:56,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2020-08-19 02:29:56,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2020-08-19 02:29:56,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2020-08-19 02:29:56,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_udev [2020-08-19 02:29:56,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_udev [2020-08-19 02:29:56,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2020-08-19 02:29:56,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_udev [2020-08-19 02:29:56,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_udev [2020-08-19 02:29:56,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_udev [2020-08-19 02:29:56,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_udev [2020-08-19 02:29:56,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_udev [2020-08-19 02:29:56,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_udev [2020-08-19 02:29:56,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_udev [2020-08-19 02:29:56,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_udev [2020-08-19 02:29:56,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-19 02:29:56,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_usb_unlock_device [2020-08-19 02:29:56,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-19 02:29:56,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-08-19 02:29:56,754 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-08-19 02:29:56,754 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-08-19 02:29:56,754 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-08-19 02:29:56,754 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-08-19 02:29:56,754 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-08-19 02:29:56,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2020-08-19 02:29:56,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-08-19 02:29:56,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-08-19 02:29:56,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-08-19 02:29:56,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-08-19 02:29:56,755 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-19 02:29:56,756 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-08-19 02:29:56,756 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-19 02:29:56,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 02:29:56,756 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-08-19 02:29:56,757 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-08-19 02:29:56,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_8 [2020-08-19 02:29:56,757 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-08-19 02:29:56,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2020-08-19 02:29:56,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-08-19 02:29:56,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2020-08-19 02:29:56,758 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 02:29:56,758 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-19 02:29:56,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 02:29:56,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-19 02:29:56,758 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 02:29:56,758 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 02:29:56,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-19 02:29:56,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 02:29:56,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-19 02:29:56,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-19 02:29:56,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-08-19 02:29:56,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-08-19 02:29:56,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-08-19 02:29:56,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-19 02:29:56,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-19 02:29:56,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-19 02:29:56,760 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_usb_unlock_device [2020-08-19 02:29:56,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___ldv_usb_unlock_device_13 [2020-08-19 02:29:56,761 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-08-19 02:29:56,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-08-19 02:29:56,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_7 [2020-08-19 02:29:56,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_11 [2020-08-19 02:29:56,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2020-08-19 02:29:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2020-08-19 02:29:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-08-19 02:29:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-08-19 02:29:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-08-19 02:29:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-08-19 02:29:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-08-19 02:29:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_udev [2020-08-19 02:29:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_udev [2020-08-19 02:29:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-08-19 02:29:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_12 [2020-08-19 02:29:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2020-08-19 02:29:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-08-19 02:29:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2020-08-19 02:29:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-08-19 02:29:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2020-08-19 02:29:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-08-19 02:29:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-08-19 02:29:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-08-19 02:29:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-08-19 02:29:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2020-08-19 02:29:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure m5632_recover [2020-08-19 02:29:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 02:29:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 02:29:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_prereset [2020-08-19 02:29:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_postreset [2020-08-19 02:29:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_subset_driver_init [2020-08-19 02:29:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_subset_driver_exit [2020-08-19 02:29:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-19 02:29:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-08-19 02:29:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-19 02:29:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 02:29:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 02:29:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 02:29:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-19 02:29:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2020-08-19 02:29:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-08-19 02:29:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-08-19 02:29:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-08-19 02:29:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-08-19 02:29:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2020-08-19 02:29:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2020-08-19 02:29:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2020-08-19 02:29:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2020-08-19 02:29:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2020-08-19 02:29:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2020-08-19 02:29:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2020-08-19 02:29:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2020-08-19 02:29:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2020-08-19 02:29:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-08-19 02:29:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-08-19 02:29:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-08-19 02:29:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-08-19 02:29:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-08-19 02:29:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2020-08-19 02:29:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2020-08-19 02:29:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2020-08-19 02:29:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2020-08-19 02:29:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-08-19 02:29:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-08-19 02:29:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-08-19 02:29:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-08-19 02:29:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2020-08-19 02:29:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2020-08-19 02:29:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2020-08-19 02:29:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2020-08-19 02:29:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_udev [2020-08-19 02:29:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_udev [2020-08-19 02:29:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2020-08-19 02:29:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_udev [2020-08-19 02:29:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_udev [2020-08-19 02:29:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_udev [2020-08-19 02:29:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_udev [2020-08-19 02:29:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_udev [2020-08-19 02:29:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_udev [2020-08-19 02:29:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 02:29:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-19 02:29:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 02:29:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 02:29:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-19 02:29:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 02:29:56,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 02:29:56,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 02:29:57,447 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-19 02:29:59,483 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 02:29:59,483 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-19 02:29:59,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 02:29:59 BoogieIcfgContainer [2020-08-19 02:29:59,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 02:29:59,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 02:29:59,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 02:29:59,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 02:29:59,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 02:29:54" (1/3) ... [2020-08-19 02:29:59,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf54d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 02:29:59, skipping insertion in model container [2020-08-19 02:29:59,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:29:56" (2/3) ... [2020-08-19 02:29:59,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf54d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 02:29:59, skipping insertion in model container [2020-08-19 02:29:59,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 02:29:59" (3/3) ... [2020-08-19 02:29:59,499 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-08-19 02:29:59,510 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 02:29:59,520 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 02:29:59,535 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 02:29:59,563 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 02:29:59,564 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 02:29:59,564 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 02:29:59,564 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 02:29:59,564 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 02:29:59,564 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 02:29:59,565 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 02:29:59,565 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 02:29:59,594 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states. [2020-08-19 02:29:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-19 02:29:59,610 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:29:59,611 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] [2020-08-19 02:29:59,611 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:29:59,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:29:59,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1903613762, now seen corresponding path program 1 times [2020-08-19 02:29:59,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:29:59,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710077099] [2020-08-19 02:29:59,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:30:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:00,832 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-19 02:30:00,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:30:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:00,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:00,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:30:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:30:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-19 02:30:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-19 02:30:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 02:30:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 02:30:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-19 02:30:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-19 02:30:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-08-19 02:30:01,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710077099] [2020-08-19 02:30:01,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:30:01,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 02:30:01,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860180000] [2020-08-19 02:30:01,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 02:30:01,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:30:01,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 02:30:01,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-19 02:30:01,532 INFO L87 Difference]: Start difference. First operand 480 states. Second operand 6 states. [2020-08-19 02:30:02,071 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-19 02:30:06,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:30:06,672 INFO L93 Difference]: Finished difference Result 553 states and 733 transitions. [2020-08-19 02:30:06,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 02:30:06,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2020-08-19 02:30:06,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:30:06,690 INFO L225 Difference]: With dead ends: 553 [2020-08-19 02:30:06,690 INFO L226 Difference]: Without dead ends: 271 [2020-08-19 02:30:06,697 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 [2020-08-19 02:30:06,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-08-19 02:30:06,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 253. [2020-08-19 02:30:06,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-08-19 02:30:06,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 315 transitions. [2020-08-19 02:30:06,802 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 315 transitions. Word has length 138 [2020-08-19 02:30:06,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:30:06,803 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 315 transitions. [2020-08-19 02:30:06,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 02:30:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 315 transitions. [2020-08-19 02:30:06,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-19 02:30:06,807 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:30:06,808 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] [2020-08-19 02:30:06,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 02:30:06,808 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:30:06,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:30:06,809 INFO L82 PathProgramCache]: Analyzing trace with hash 568155594, now seen corresponding path program 1 times [2020-08-19 02:30:06,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:30:06,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563071852] [2020-08-19 02:30:06,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:30:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,464 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-19 02:30:07,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:30:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:30:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:30:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-19 02:30:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-19 02:30:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 02:30:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 02:30:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-19 02:30:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-19 02:30:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-08-19 02:30:07,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563071852] [2020-08-19 02:30:07,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:30:07,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 02:30:07,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888937533] [2020-08-19 02:30:07,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 02:30:07,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:30:07,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 02:30:07,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 02:30:07,907 INFO L87 Difference]: Start difference. First operand 253 states and 315 transitions. Second operand 7 states. [2020-08-19 02:30:08,235 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-19 02:30:10,939 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-19 02:30:11,288 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-19 02:30:13,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:30:13,886 INFO L93 Difference]: Finished difference Result 647 states and 816 transitions. [2020-08-19 02:30:13,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 02:30:13,888 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-08-19 02:30:13,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:30:13,894 INFO L225 Difference]: With dead ends: 647 [2020-08-19 02:30:13,895 INFO L226 Difference]: Without dead ends: 426 [2020-08-19 02:30:13,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-08-19 02:30:13,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-08-19 02:30:13,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 384. [2020-08-19 02:30:13,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-08-19 02:30:13,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 491 transitions. [2020-08-19 02:30:13,964 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 491 transitions. Word has length 138 [2020-08-19 02:30:13,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:30:13,970 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 491 transitions. [2020-08-19 02:30:13,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 02:30:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 491 transitions. [2020-08-19 02:30:13,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-08-19 02:30:13,974 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:30:13,975 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] [2020-08-19 02:30:13,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 02:30:13,975 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:30:13,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:30:13,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1957018819, now seen corresponding path program 1 times [2020-08-19 02:30:13,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:30:13,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761024623] [2020-08-19 02:30:13,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:30:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,737 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-19 02:30:14,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:30:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:30:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:30:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-19 02:30:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-19 02:30:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:14,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 02:30:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:15,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:15,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:15,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 02:30:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:15,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-19 02:30:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:15,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:15,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-19 02:30:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:15,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:30:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:15,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:15,144 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-08-19 02:30:15,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761024623] [2020-08-19 02:30:15,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:30:15,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 02:30:15,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920659413] [2020-08-19 02:30:15,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 02:30:15,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:30:15,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 02:30:15,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-19 02:30:15,147 INFO L87 Difference]: Start difference. First operand 384 states and 491 transitions. Second operand 8 states. [2020-08-19 02:30:15,513 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-19 02:30:20,498 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-19 02:30:21,301 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-19 02:30:23,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:30:23,334 INFO L93 Difference]: Finished difference Result 1035 states and 1342 transitions. [2020-08-19 02:30:23,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 02:30:23,335 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-08-19 02:30:23,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:30:23,347 INFO L225 Difference]: With dead ends: 1035 [2020-08-19 02:30:23,347 INFO L226 Difference]: Without dead ends: 683 [2020-08-19 02:30:23,352 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 [2020-08-19 02:30:23,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2020-08-19 02:30:23,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 649. [2020-08-19 02:30:23,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-08-19 02:30:23,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 844 transitions. [2020-08-19 02:30:23,467 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 844 transitions. Word has length 141 [2020-08-19 02:30:23,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:30:23,468 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 844 transitions. [2020-08-19 02:30:23,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 02:30:23,468 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 844 transitions. [2020-08-19 02:30:23,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-19 02:30:23,470 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:30:23,470 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] [2020-08-19 02:30:23,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 02:30:23,471 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:30:23,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:30:23,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2115073202, now seen corresponding path program 1 times [2020-08-19 02:30:23,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:30:23,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1871428825] [2020-08-19 02:30:23,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:30:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,020 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-19 02:30:24,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:30:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:30:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:30:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-19 02:30:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-19 02:30:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 02:30:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 02:30:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-19 02:30:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-19 02:30:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-19 02:30:24,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1871428825] [2020-08-19 02:30:24,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:30:24,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 02:30:24,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245934963] [2020-08-19 02:30:24,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 02:30:24,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:30:24,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 02:30:24,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-19 02:30:24,463 INFO L87 Difference]: Start difference. First operand 649 states and 844 transitions. Second operand 9 states. [2020-08-19 02:30:24,781 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-19 02:30:27,479 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-19 02:30:27,935 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-19 02:30:29,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:30:29,895 INFO L93 Difference]: Finished difference Result 701 states and 907 transitions. [2020-08-19 02:30:29,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 02:30:29,896 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-08-19 02:30:29,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:30:29,902 INFO L225 Difference]: With dead ends: 701 [2020-08-19 02:30:29,903 INFO L226 Difference]: Without dead ends: 690 [2020-08-19 02:30:29,904 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 [2020-08-19 02:30:29,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2020-08-19 02:30:29,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 649. [2020-08-19 02:30:29,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-08-19 02:30:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 843 transitions. [2020-08-19 02:30:29,985 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 843 transitions. Word has length 167 [2020-08-19 02:30:29,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:30:29,986 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 843 transitions. [2020-08-19 02:30:29,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 02:30:29,987 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 843 transitions. [2020-08-19 02:30:29,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-19 02:30:29,989 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:30:29,989 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] [2020-08-19 02:30:29,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 02:30:29,990 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:30:29,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:30:29,990 INFO L82 PathProgramCache]: Analyzing trace with hash -2057814900, now seen corresponding path program 1 times [2020-08-19 02:30:29,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:30:29,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929878505] [2020-08-19 02:30:29,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:30:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,583 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-19 02:30:30,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:30:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:30:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:30:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-19 02:30:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-19 02:30:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 02:30:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 02:30:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-19 02:30:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-19 02:30:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:30,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:31,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:31,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:31,064 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-19 02:30:31,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929878505] [2020-08-19 02:30:31,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:30:31,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 02:30:31,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359947643] [2020-08-19 02:30:31,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 02:30:31,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:30:31,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 02:30:31,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-19 02:30:31,067 INFO L87 Difference]: Start difference. First operand 649 states and 843 transitions. Second operand 9 states. [2020-08-19 02:30:31,398 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-19 02:30:34,143 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-19 02:30:34,529 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-19 02:30:36,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:30:36,347 INFO L93 Difference]: Finished difference Result 681 states and 881 transitions. [2020-08-19 02:30:36,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 02:30:36,348 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-08-19 02:30:36,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:30:36,357 INFO L225 Difference]: With dead ends: 681 [2020-08-19 02:30:36,357 INFO L226 Difference]: Without dead ends: 678 [2020-08-19 02:30:36,359 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 [2020-08-19 02:30:36,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-08-19 02:30:36,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 648. [2020-08-19 02:30:36,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-08-19 02:30:36,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 841 transitions. [2020-08-19 02:30:36,495 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 841 transitions. Word has length 167 [2020-08-19 02:30:36,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:30:36,499 INFO L479 AbstractCegarLoop]: Abstraction has 648 states and 841 transitions. [2020-08-19 02:30:36,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 02:30:36,500 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 841 transitions. [2020-08-19 02:30:36,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-08-19 02:30:36,506 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:30:36,506 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] [2020-08-19 02:30:36,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 02:30:36,507 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:30:36,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:30:36,507 INFO L82 PathProgramCache]: Analyzing trace with hash 632050949, now seen corresponding path program 1 times [2020-08-19 02:30:36,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:30:36,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345184384] [2020-08-19 02:30:36,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:30:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,135 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-19 02:30:37,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:30:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:30:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:30:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-19 02:30:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-19 02:30:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 02:30:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 02:30:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-19 02:30:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-19 02:30:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:37,672 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-19 02:30:37,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345184384] [2020-08-19 02:30:37,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:30:37,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 02:30:37,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152181010] [2020-08-19 02:30:37,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 02:30:37,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:30:37,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 02:30:37,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-19 02:30:37,676 INFO L87 Difference]: Start difference. First operand 648 states and 841 transitions. Second operand 9 states. [2020-08-19 02:30:38,153 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-19 02:30:42,134 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-19 02:30:42,504 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-19 02:30:44,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:30:44,218 INFO L93 Difference]: Finished difference Result 680 states and 879 transitions. [2020-08-19 02:30:44,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 02:30:44,219 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2020-08-19 02:30:44,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:30:44,224 INFO L225 Difference]: With dead ends: 680 [2020-08-19 02:30:44,224 INFO L226 Difference]: Without dead ends: 677 [2020-08-19 02:30:44,225 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 [2020-08-19 02:30:44,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2020-08-19 02:30:44,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 647. [2020-08-19 02:30:44,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-08-19 02:30:44,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 839 transitions. [2020-08-19 02:30:44,305 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 839 transitions. Word has length 168 [2020-08-19 02:30:44,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:30:44,305 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 839 transitions. [2020-08-19 02:30:44,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 02:30:44,306 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 839 transitions. [2020-08-19 02:30:44,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-08-19 02:30:44,308 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:30:44,308 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] [2020-08-19 02:30:44,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 02:30:44,309 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:30:44,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:30:44,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1881448785, now seen corresponding path program 1 times [2020-08-19 02:30:44,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:30:44,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629097474] [2020-08-19 02:30:44,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:30:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:44,947 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-19 02:30:44,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:30:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:30:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 02:30:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-19 02:30:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-19 02:30:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 02:30:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 02:30:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-19 02:30:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-19 02:30:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:30:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:30:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:30:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-19 02:30:45,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629097474] [2020-08-19 02:30:45,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:30:45,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 02:30:45,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160056774] [2020-08-19 02:30:45,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 02:30:45,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:30:45,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 02:30:45,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-19 02:30:45,614 INFO L87 Difference]: Start difference. First operand 647 states and 839 transitions. Second operand 9 states. [2020-08-19 02:30:46,164 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-19 02:30:48,958 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-19 02:30:49,291 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 234