/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 01:08:20,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 01:08:20,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 01:08:20,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 01:08:20,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 01:08:20,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 01:08:20,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 01:08:20,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 01:08:20,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 01:08:20,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 01:08:20,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 01:08:20,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 01:08:20,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 01:08:20,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 01:08:20,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 01:08:20,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 01:08:20,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 01:08:20,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 01:08:20,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 01:08:20,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 01:08:20,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 01:08:20,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 01:08:20,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 01:08:20,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 01:08:20,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 01:08:20,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 01:08:20,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 01:08:20,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 01:08:20,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 01:08:20,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 01:08:20,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 01:08:20,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 01:08:20,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 01:08:20,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 01:08:20,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 01:08:20,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 01:08:20,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 01:08:20,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 01:08:20,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 01:08:20,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 01:08:20,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 01:08:20,645 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 [2020-08-22 01:08:20,667 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 01:08:20,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 01:08:20,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 01:08:20,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 01:08:20,669 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 01:08:20,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 01:08:20,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 01:08:20,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 01:08:20,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 01:08:20,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 01:08:20,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 01:08:20,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 01:08:20,671 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 01:08:20,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 01:08:20,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 01:08:20,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 01:08:20,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 01:08:20,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 01:08:20,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 01:08:20,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 01:08:20,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 01:08:20,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 01:08:20,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 01:08:20,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 01:08:20,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 01:08:20,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 01:08:20,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 01:08:20,674 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-08-22 01:08:20,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 01:08:20,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 01:08:21,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 01:08:21,005 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 01:08:21,005 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 01:08:21,006 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-08-22 01:08:21,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51440ab54/6f6b68bd173446bcbf63ef70e135fff2/FLAGf0444afe5 [2020-08-22 01:08:21,890 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 01:08:21,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-08-22 01:08:21,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51440ab54/6f6b68bd173446bcbf63ef70e135fff2/FLAGf0444afe5 [2020-08-22 01:08:22,426 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51440ab54/6f6b68bd173446bcbf63ef70e135fff2 [2020-08-22 01:08:22,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 01:08:22,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 01:08:22,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 01:08:22,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 01:08:22,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 01:08:22,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:08:22" (1/1) ... [2020-08-22 01:08:22,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b15dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:08:22, skipping insertion in model container [2020-08-22 01:08:22,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:08:22" (1/1) ... [2020-08-22 01:08:22,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 01:08:22,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 01:08:24,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:08:24,072 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 01:08:24,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:08:24,384 INFO L208 MainTranslator]: Completed translation [2020-08-22 01:08:24,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:08:24 WrapperNode [2020-08-22 01:08:24,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 01:08:24,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 01:08:24,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 01:08:24,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 01:08:24,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:08:24" (1/1) ... [2020-08-22 01:08:24,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:08:24" (1/1) ... [2020-08-22 01:08:24,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:08:24" (1/1) ... [2020-08-22 01:08:24,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:08:24" (1/1) ... [2020-08-22 01:08:24,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:08:24" (1/1) ... [2020-08-22 01:08:24,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:08:24" (1/1) ... [2020-08-22 01:08:24,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:08:24" (1/1) ... [2020-08-22 01:08:24,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 01:08:24,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 01:08:24,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 01:08:24,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 01:08:24,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:08:24" (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 [2020-08-22 01:08:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 01:08:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 01:08:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 01:08:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-22 01:08:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-22 01:08:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-08-22 01:08:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-08-22 01:08:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-22 01:08:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-22 01:08:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-22 01:08:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2020-08-22 01:08:24,811 INFO L138 BoogieDeclarations]: Found implementation of procedure m5632_recover [2020-08-22 01:08:24,812 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_prereset [2020-08-22 01:08:24,812 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_postreset [2020-08-22 01:08:24,812 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_subset_driver_init [2020-08-22 01:08:24,813 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_subset_driver_exit [2020-08-22 01:08:24,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-08-22 01:08:24,816 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 01:08:24,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-08-22 01:08:24,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2020-08-22 01:08:24,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_7 [2020-08-22 01:08:24,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_8 [2020-08-22 01:08:24,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-08-22 01:08:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2020-08-22 01:08:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_11 [2020-08-22 01:08:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_12 [2020-08-22 01:08:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___ldv_usb_unlock_device_13 [2020-08-22 01:08:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2020-08-22 01:08:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2020-08-22 01:08:24,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-22 01:08:24,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2020-08-22 01:08:24,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-08-22 01:08:24,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-08-22 01:08:24,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-08-22 01:08:24,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-08-22 01:08:24,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2020-08-22 01:08:24,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2020-08-22 01:08:24,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2020-08-22 01:08:24,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2020-08-22 01:08:24,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2020-08-22 01:08:24,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2020-08-22 01:08:24,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2020-08-22 01:08:24,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2020-08-22 01:08:24,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2020-08-22 01:08:24,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2020-08-22 01:08:24,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2020-08-22 01:08:24,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-08-22 01:08:24,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-08-22 01:08:24,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-08-22 01:08:24,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-08-22 01:08:24,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-08-22 01:08:24,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-08-22 01:08:24,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-08-22 01:08:24,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2020-08-22 01:08:24,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2020-08-22 01:08:24,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2020-08-22 01:08:24,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2020-08-22 01:08:24,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-08-22 01:08:24,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-08-22 01:08:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-08-22 01:08:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-08-22 01:08:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-08-22 01:08:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-08-22 01:08:24,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-08-22 01:08:24,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2020-08-22 01:08:24,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2020-08-22 01:08:24,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2020-08-22 01:08:24,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2020-08-22 01:08:24,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_udev [2020-08-22 01:08:24,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_udev [2020-08-22 01:08:24,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2020-08-22 01:08:24,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_udev [2020-08-22 01:08:24,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_udev [2020-08-22 01:08:24,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_udev [2020-08-22 01:08:24,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_udev [2020-08-22 01:08:24,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_udev [2020-08-22 01:08:24,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_udev [2020-08-22 01:08:24,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_udev [2020-08-22 01:08:24,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_udev [2020-08-22 01:08:24,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-22 01:08:24,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_usb_unlock_device [2020-08-22 01:08:24,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-22 01:08:24,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-08-22 01:08:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-08-22 01:08:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-08-22 01:08:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-08-22 01:08:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-08-22 01:08:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-08-22 01:08:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2020-08-22 01:08:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-08-22 01:08:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-08-22 01:08:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-08-22 01:08:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-08-22 01:08:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-22 01:08:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-08-22 01:08:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-22 01:08:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 01:08:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-08-22 01:08:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-08-22 01:08:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_8 [2020-08-22 01:08:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-08-22 01:08:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2020-08-22 01:08:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-08-22 01:08:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2020-08-22 01:08:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 01:08:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 01:08:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 01:08:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-22 01:08:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 01:08:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 01:08:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-22 01:08:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 01:08:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-22 01:08:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-22 01:08:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-08-22 01:08:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-08-22 01:08:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-08-22 01:08:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-22 01:08:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-22 01:08:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-22 01:08:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_usb_unlock_device [2020-08-22 01:08:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___ldv_usb_unlock_device_13 [2020-08-22 01:08:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-08-22 01:08:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-08-22 01:08:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_7 [2020-08-22 01:08:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_11 [2020-08-22 01:08:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2020-08-22 01:08:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2020-08-22 01:08:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-08-22 01:08:24,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-08-22 01:08:24,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-08-22 01:08:24,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-08-22 01:08:24,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-08-22 01:08:24,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_udev [2020-08-22 01:08:24,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_udev [2020-08-22 01:08:24,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-08-22 01:08:24,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_12 [2020-08-22 01:08:24,862 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2020-08-22 01:08:24,863 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-08-22 01:08:24,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2020-08-22 01:08:24,864 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-08-22 01:08:24,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2020-08-22 01:08:24,865 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-08-22 01:08:24,865 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-08-22 01:08:24,866 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-08-22 01:08:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-08-22 01:08:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2020-08-22 01:08:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure m5632_recover [2020-08-22 01:08:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 01:08:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 01:08:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_prereset [2020-08-22 01:08:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_postreset [2020-08-22 01:08:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_subset_driver_init [2020-08-22 01:08:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_subset_driver_exit [2020-08-22 01:08:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-22 01:08:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-08-22 01:08:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-22 01:08:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 01:08:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 01:08:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 01:08:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-22 01:08:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2020-08-22 01:08:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-08-22 01:08:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-08-22 01:08:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-08-22 01:08:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-08-22 01:08:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2020-08-22 01:08:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2020-08-22 01:08:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2020-08-22 01:08:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2020-08-22 01:08:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2020-08-22 01:08:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2020-08-22 01:08:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2020-08-22 01:08:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2020-08-22 01:08:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2020-08-22 01:08:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-08-22 01:08:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-08-22 01:08:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-08-22 01:08:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-08-22 01:08:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-08-22 01:08:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2020-08-22 01:08:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2020-08-22 01:08:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2020-08-22 01:08:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2020-08-22 01:08:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-08-22 01:08:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-08-22 01:08:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-08-22 01:08:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-08-22 01:08:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2020-08-22 01:08:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2020-08-22 01:08:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2020-08-22 01:08:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2020-08-22 01:08:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_udev [2020-08-22 01:08:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_udev [2020-08-22 01:08:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2020-08-22 01:08:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_udev [2020-08-22 01:08:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_udev [2020-08-22 01:08:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_udev [2020-08-22 01:08:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_udev [2020-08-22 01:08:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_udev [2020-08-22 01:08:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_udev [2020-08-22 01:08:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 01:08:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-22 01:08:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 01:08:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 01:08:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 01:08:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 01:08:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 01:08:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 01:08:25,505 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-22 01:08:27,601 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 01:08:27,601 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 01:08:27,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:08:27 BoogieIcfgContainer [2020-08-22 01:08:27,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 01:08:27,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 01:08:27,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 01:08:27,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 01:08:27,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 01:08:22" (1/3) ... [2020-08-22 01:08:27,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3557a9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:08:27, skipping insertion in model container [2020-08-22 01:08:27,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:08:24" (2/3) ... [2020-08-22 01:08:27,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3557a9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:08:27, skipping insertion in model container [2020-08-22 01:08:27,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:08:27" (3/3) ... [2020-08-22 01:08:27,627 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-08-22 01:08:27,638 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 01:08:27,648 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 01:08:27,663 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 01:08:27,694 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 01:08:27,695 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 01:08:27,695 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 01:08:27,695 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 01:08:27,695 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 01:08:27,695 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 01:08:27,696 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 01:08:27,696 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 01:08:27,736 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states. [2020-08-22 01:08:27,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-22 01:08:27,759 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:08:27,760 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] [2020-08-22 01:08:27,761 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:08:27,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:08:27,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1903613762, now seen corresponding path program 1 times [2020-08-22 01:08:27,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:08:27,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812925387] [2020-08-22 01:08:27,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:08:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:28,943 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-22 01:08:28,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:08:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 01:08:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 01:08:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-22 01:08:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 01:08:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 01:08:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 01:08:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 01:08:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 01:08:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:29,421 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-08-22 01:08:29,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812925387] [2020-08-22 01:08:29,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:08:29,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:08:29,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280391686] [2020-08-22 01:08:29,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:08:29,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:08:29,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:08:29,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:08:29,451 INFO L87 Difference]: Start difference. First operand 480 states. Second operand 6 states. [2020-08-22 01:08:30,069 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-22 01:08:34,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:08:34,538 INFO L93 Difference]: Finished difference Result 553 states and 733 transitions. [2020-08-22 01:08:34,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 01:08:34,541 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2020-08-22 01:08:34,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:08:34,560 INFO L225 Difference]: With dead ends: 553 [2020-08-22 01:08:34,561 INFO L226 Difference]: Without dead ends: 271 [2020-08-22 01:08:34,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-22 01:08:34,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-08-22 01:08:34,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 253. [2020-08-22 01:08:34,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-08-22 01:08:34,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 315 transitions. [2020-08-22 01:08:34,676 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 315 transitions. Word has length 138 [2020-08-22 01:08:34,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:08:34,676 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 315 transitions. [2020-08-22 01:08:34,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:08:34,676 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 315 transitions. [2020-08-22 01:08:34,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-22 01:08:34,680 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:08:34,680 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] [2020-08-22 01:08:34,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 01:08:34,681 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:08:34,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:08:34,681 INFO L82 PathProgramCache]: Analyzing trace with hash 568155594, now seen corresponding path program 1 times [2020-08-22 01:08:34,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:08:34,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249946244] [2020-08-22 01:08:34,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:08:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,526 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-22 01:08:35,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:08:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 01:08:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 01:08:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:35,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-22 01:08:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 01:08:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 01:08:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 01:08:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 01:08:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 01:08:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:35,881 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-08-22 01:08:35,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249946244] [2020-08-22 01:08:35,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:08:35,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 01:08:35,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372147232] [2020-08-22 01:08:35,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 01:08:35,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:08:35,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 01:08:35,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 01:08:35,885 INFO L87 Difference]: Start difference. First operand 253 states and 315 transitions. Second operand 7 states. [2020-08-22 01:08:36,379 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-22 01:08:39,101 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-22 01:08:39,531 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-22 01:08:42,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:08:42,463 INFO L93 Difference]: Finished difference Result 647 states and 816 transitions. [2020-08-22 01:08:42,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 01:08:42,469 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-08-22 01:08:42,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:08:42,479 INFO L225 Difference]: With dead ends: 647 [2020-08-22 01:08:42,480 INFO L226 Difference]: Without dead ends: 426 [2020-08-22 01:08:42,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-08-22 01:08:42,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-08-22 01:08:42,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 384. [2020-08-22 01:08:42,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-08-22 01:08:42,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 491 transitions. [2020-08-22 01:08:42,570 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 491 transitions. Word has length 138 [2020-08-22 01:08:42,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:08:42,571 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 491 transitions. [2020-08-22 01:08:42,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 01:08:42,571 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 491 transitions. [2020-08-22 01:08:42,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-08-22 01:08:42,574 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:08:42,574 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] [2020-08-22 01:08:42,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 01:08:42,574 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:08:42,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:08:42,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1957018819, now seen corresponding path program 1 times [2020-08-22 01:08:42,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:08:42,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851110644] [2020-08-22 01:08:42,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:08:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,155 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-22 01:08:43,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:08:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 01:08:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 01:08:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-22 01:08:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 01:08:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 01:08:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 01:08:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 01:08:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 01:08:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:08:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:43,657 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-08-22 01:08:43,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851110644] [2020-08-22 01:08:43,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:08:43,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 01:08:43,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914621479] [2020-08-22 01:08:43,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 01:08:43,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:08:43,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 01:08:43,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 01:08:43,661 INFO L87 Difference]: Start difference. First operand 384 states and 491 transitions. Second operand 8 states. [2020-08-22 01:08:44,132 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-22 01:08:49,257 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-22 01:08:50,242 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-22 01:08:52,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:08:52,627 INFO L93 Difference]: Finished difference Result 1035 states and 1342 transitions. [2020-08-22 01:08:52,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 01:08:52,627 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-08-22 01:08:52,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:08:52,635 INFO L225 Difference]: With dead ends: 1035 [2020-08-22 01:08:52,635 INFO L226 Difference]: Without dead ends: 683 [2020-08-22 01:08:52,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2020-08-22 01:08:52,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2020-08-22 01:08:52,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 649. [2020-08-22 01:08:52,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-08-22 01:08:52,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 844 transitions. [2020-08-22 01:08:52,719 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 844 transitions. Word has length 141 [2020-08-22 01:08:52,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:08:52,719 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 844 transitions. [2020-08-22 01:08:52,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 01:08:52,720 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 844 transitions. [2020-08-22 01:08:52,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 01:08:52,722 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:08:52,722 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] [2020-08-22 01:08:52,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 01:08:52,722 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:08:52,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:08:52,723 INFO L82 PathProgramCache]: Analyzing trace with hash -2115073202, now seen corresponding path program 1 times [2020-08-22 01:08:52,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:08:52,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597071080] [2020-08-22 01:08:52,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:08:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,310 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-22 01:08:53,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:08:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 01:08:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 01:08:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-22 01:08:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 01:08:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 01:08:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 01:08:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 01:08:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 01:08:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:08:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:08:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:08:53,851 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-22 01:08:53,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597071080] [2020-08-22 01:08:53,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:08:53,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 01:08:53,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041667288] [2020-08-22 01:08:53,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 01:08:53,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:08:53,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 01:08:53,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-22 01:08:53,854 INFO L87 Difference]: Start difference. First operand 649 states and 844 transitions. Second operand 9 states. [2020-08-22 01:08:54,287 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-22 01:08:57,049 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-22 01:08:57,499 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-22 01:08:59,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:08:59,760 INFO L93 Difference]: Finished difference Result 701 states and 907 transitions. [2020-08-22 01:08:59,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 01:08:59,762 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-08-22 01:08:59,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:08:59,768 INFO L225 Difference]: With dead ends: 701 [2020-08-22 01:08:59,769 INFO L226 Difference]: Without dead ends: 690 [2020-08-22 01:08:59,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-08-22 01:08:59,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2020-08-22 01:08:59,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 649. [2020-08-22 01:08:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-08-22 01:08:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 843 transitions. [2020-08-22 01:08:59,849 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 843 transitions. Word has length 167 [2020-08-22 01:08:59,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:08:59,850 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 843 transitions. [2020-08-22 01:08:59,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 01:08:59,850 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 843 transitions. [2020-08-22 01:08:59,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 01:08:59,852 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:08:59,852 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] [2020-08-22 01:08:59,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 01:08:59,853 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:08:59,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:08:59,853 INFO L82 PathProgramCache]: Analyzing trace with hash -2057814900, now seen corresponding path program 1 times [2020-08-22 01:08:59,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:08:59,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445602806] [2020-08-22 01:08:59,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:08:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,469 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-22 01:09:00,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:09:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 01:09:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 01:09:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-22 01:09:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 01:09:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 01:09:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 01:09:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 01:09:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 01:09:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:00,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:01,034 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-22 01:09:01,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445602806] [2020-08-22 01:09:01,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:09:01,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 01:09:01,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164104851] [2020-08-22 01:09:01,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 01:09:01,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:09:01,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 01:09:01,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-22 01:09:01,042 INFO L87 Difference]: Start difference. First operand 649 states and 843 transitions. Second operand 9 states. [2020-08-22 01:09:01,460 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-22 01:09:04,299 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-22 01:09:04,752 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-22 01:09:06,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:09:06,797 INFO L93 Difference]: Finished difference Result 681 states and 881 transitions. [2020-08-22 01:09:06,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 01:09:06,798 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-08-22 01:09:06,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:09:06,806 INFO L225 Difference]: With dead ends: 681 [2020-08-22 01:09:06,807 INFO L226 Difference]: Without dead ends: 678 [2020-08-22 01:09:06,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-08-22 01:09:06,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-08-22 01:09:06,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 648. [2020-08-22 01:09:06,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-08-22 01:09:06,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 841 transitions. [2020-08-22 01:09:06,943 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 841 transitions. Word has length 167 [2020-08-22 01:09:06,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:09:06,944 INFO L479 AbstractCegarLoop]: Abstraction has 648 states and 841 transitions. [2020-08-22 01:09:06,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 01:09:06,944 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 841 transitions. [2020-08-22 01:09:06,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-08-22 01:09:06,950 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:09:06,950 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] [2020-08-22 01:09:06,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 01:09:06,951 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:09:06,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:09:06,951 INFO L82 PathProgramCache]: Analyzing trace with hash 632050949, now seen corresponding path program 1 times [2020-08-22 01:09:06,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:09:06,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823780566] [2020-08-22 01:09:06,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:09:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,644 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-22 01:09:07,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:09:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 01:09:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 01:09:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-22 01:09:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 01:09:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 01:09:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 01:09:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 01:09:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:07,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:08,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 01:09:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:08,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:08,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:08,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:08,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:08,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:08,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-22 01:09:08,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823780566] [2020-08-22 01:09:08,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:09:08,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 01:09:08,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437762449] [2020-08-22 01:09:08,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 01:09:08,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:09:08,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 01:09:08,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-22 01:09:08,168 INFO L87 Difference]: Start difference. First operand 648 states and 841 transitions. Second operand 9 states. [2020-08-22 01:09:08,847 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-22 01:09:13,566 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-22 01:09:14,010 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-08-22 01:09:15,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:09:15,963 INFO L93 Difference]: Finished difference Result 680 states and 879 transitions. [2020-08-22 01:09:15,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 01:09:15,964 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2020-08-22 01:09:15,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:09:15,970 INFO L225 Difference]: With dead ends: 680 [2020-08-22 01:09:15,970 INFO L226 Difference]: Without dead ends: 677 [2020-08-22 01:09:15,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-08-22 01:09:15,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2020-08-22 01:09:16,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 647. [2020-08-22 01:09:16,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-08-22 01:09:16,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 839 transitions. [2020-08-22 01:09:16,045 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 839 transitions. Word has length 168 [2020-08-22 01:09:16,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:09:16,046 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 839 transitions. [2020-08-22 01:09:16,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 01:09:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 839 transitions. [2020-08-22 01:09:16,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-08-22 01:09:16,048 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:09:16,049 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] [2020-08-22 01:09:16,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 01:09:16,049 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:09:16,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:09:16,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1881448785, now seen corresponding path program 1 times [2020-08-22 01:09:16,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:09:16,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564530852] [2020-08-22 01:09:16,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:09:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,662 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-08-22 01:09:16,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:09:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 01:09:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 01:09:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-22 01:09:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 01:09:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 01:09:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 01:09:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 01:09:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:16,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:17,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 01:09:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:17,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:17,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:17,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:17,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:17,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:09:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:17,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:09:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:09:17,254 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-22 01:09:17,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564530852] [2020-08-22 01:09:17,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:09:17,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 01:09:17,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349620676] [2020-08-22 01:09:17,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 01:09:17,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:09:17,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 01:09:17,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-22 01:09:17,257 INFO L87 Difference]: Start difference. First operand 647 states and 839 transitions. Second operand 9 states. [2020-08-22 01:09:17,819 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-08-22 01:09:20,365 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-08-22 01:09:20,767 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 234