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 -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.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 0.1.24-112bae1 [2019-09-10 12:38:51,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 12:38:51,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 12:38:51,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 12:38:51,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 12:38:51,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 12:38:51,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 12:38:51,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 12:38:51,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 12:38:51,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 12:38:51,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 12:38:51,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 12:38:51,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 12:38:51,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 12:38:51,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 12:38:51,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 12:38:51,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 12:38:51,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 12:38:51,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 12:38:51,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 12:38:51,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 12:38:51,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 12:38:51,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 12:38:51,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 12:38:51,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 12:38:51,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 12:38:51,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 12:38:51,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 12:38:51,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 12:38:51,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 12:38:51,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 12:38:51,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 12:38:51,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 12:38:51,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 12:38:51,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 12:38:51,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 12:38:51,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 12:38:51,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 12:38:51,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 12:38:51,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 12:38:51,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 12:38:51,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 12:38:51,376 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 12:38:51,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 12:38:51,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 12:38:51,377 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 12:38:51,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 12:38:51,378 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 12:38:51,378 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 12:38:51,378 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 12:38:51,379 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 12:38:51,379 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 12:38:51,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 12:38:51,380 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 12:38:51,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 12:38:51,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 12:38:51,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 12:38:51,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 12:38:51,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 12:38:51,381 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 12:38:51,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 12:38:51,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 12:38:51,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 12:38:51,382 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 12:38:51,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 12:38:51,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 12:38:51,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 12:38:51,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 12:38:51,383 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 12:38:51,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 12:38:51,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 12:38:51,383 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 12:38:51,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 12:38:51,424 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 12:38:51,427 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 12:38:51,429 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 12:38:51,429 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 12:38:51,430 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2019-09-10 12:38:51,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c222bc7f/b8c7d863229544b98687e240e0504f48/FLAG534210be3 [2019-09-10 12:38:52,269 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 12:38:52,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2019-09-10 12:38:52,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c222bc7f/b8c7d863229544b98687e240e0504f48/FLAG534210be3 [2019-09-10 12:38:52,824 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c222bc7f/b8c7d863229544b98687e240e0504f48 [2019-09-10 12:38:52,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 12:38:52,839 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 12:38:52,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 12:38:52,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 12:38:52,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 12:38:52,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:38:52" (1/1) ... [2019-09-10 12:38:52,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2743f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:38:52, skipping insertion in model container [2019-09-10 12:38:52,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:38:52" (1/1) ... [2019-09-10 12:38:52,856 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 12:38:52,989 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 12:38:54,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 12:38:54,420 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 12:38:54,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 12:38:54,816 INFO L192 MainTranslator]: Completed translation [2019-09-10 12:38:54,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:38:54 WrapperNode [2019-09-10 12:38:54,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 12:38:54,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 12:38:54,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 12:38:54,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 12:38:54,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:38:54" (1/1) ... [2019-09-10 12:38:54,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:38:54" (1/1) ... [2019-09-10 12:38:54,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:38:54" (1/1) ... [2019-09-10 12:38:54,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:38:54" (1/1) ... [2019-09-10 12:38:55,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:38:54" (1/1) ... [2019-09-10 12:38:55,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:38:54" (1/1) ... [2019-09-10 12:38:55,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:38:54" (1/1) ... [2019-09-10 12:38:55,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 12:38:55,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 12:38:55,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 12:38:55,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 12:38:55,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:38:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-09-10 12:38:55,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 12:38:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 12:38:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 12:38:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-10 12:38:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-10 12:38:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-10 12:38:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-10 12:38:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 12:38:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-10 12:38:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 12:38:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2019-09-10 12:38:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure m5632_recover [2019-09-10 12:38:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_prereset [2019-09-10 12:38:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_postreset [2019-09-10 12:38:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_subset_driver_init [2019-09-10 12:38:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_subset_driver_exit [2019-09-10 12:38:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-09-10 12:38:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 12:38:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-09-10 12:38:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-09-10 12:38:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_7 [2019-09-10 12:38:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_8 [2019-09-10 12:38:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2019-09-10 12:38:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2019-09-10 12:38:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_11 [2019-09-10 12:38:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_12 [2019-09-10 12:38:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___ldv_usb_unlock_device_13 [2019-09-10 12:38:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2019-09-10 12:38:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2019-09-10 12:38:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 12:38:55,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-09-10 12:38:55,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-10 12:38:55,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-10 12:38:55,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-10 12:38:55,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-10 12:38:55,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-10 12:38:55,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-10 12:38:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-10 12:38:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-10 12:38:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-10 12:38:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-10 12:38:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-10 12:38:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-10 12:38:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-10 12:38:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-10 12:38:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-10 12:38:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-09-10 12:38:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-09-10 12:38:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-09-10 12:38:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-09-10 12:38:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-10 12:38:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-09-10 12:38:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-09-10 12:38:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-09-10 12:38:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-09-10 12:38:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-09-10 12:38:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-09-10 12:38:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-10 12:38:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-10 12:38:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-09-10 12:38:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-09-10 12:38:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-10 12:38:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-10 12:38:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-09-10 12:38:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-09-10 12:38:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-10 12:38:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-10 12:38:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-10 12:38:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_udev [2019-09-10 12:38:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_udev [2019-09-10 12:38:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2019-09-10 12:38:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_udev [2019-09-10 12:38:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_udev [2019-09-10 12:38:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_udev [2019-09-10 12:38:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_udev [2019-09-10 12:38:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_udev [2019-09-10 12:38:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_udev [2019-09-10 12:38:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_udev [2019-09-10 12:38:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_udev [2019-09-10 12:38:55,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 12:38:55,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_usb_unlock_device [2019-09-10 12:38:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 12:38:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2019-09-10 12:38:55,219 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-09-10 12:38:55,219 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-09-10 12:38:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-10 12:38:55,221 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-10 12:38:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-10 12:38:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2019-09-10 12:38:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2019-09-10 12:38:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2019-09-10 12:38:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2019-09-10 12:38:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2019-09-10 12:38:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 12:38:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 12:38:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 12:38:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-10 12:38:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 12:38:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 12:38:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-09-10 12:38:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_8 [2019-09-10 12:38:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-10 12:38:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-09-10 12:38:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2019-09-10 12:38:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2019-09-10 12:38:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 12:38:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 12:38:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 12:38:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 12:38:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 12:38:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 12:38:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 12:38:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 12:38:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-10 12:38:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-10 12:38:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-10 12:38:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-10 12:38:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 12:38:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-10 12:38:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 12:38:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-10 12:38:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 12:38:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_usb_unlock_device [2019-09-10 12:38:55,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___ldv_usb_unlock_device_13 [2019-09-10 12:38:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-09-10 12:38:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-09-10 12:38:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_7 [2019-09-10 12:38:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_11 [2019-09-10 12:38:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-10 12:38:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-10 12:38:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-09-10 12:38:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-09-10 12:38:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-09-10 12:38:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-09-10 12:38:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-09-10 12:38:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_udev [2019-09-10 12:38:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_udev [2019-09-10 12:38:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-09-10 12:38:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_12 [2019-09-10 12:38:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2019-09-10 12:38:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-10 12:38:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2019-09-10 12:38:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-10 12:38:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2019-09-10 12:38:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2019-09-10 12:38:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2019-09-10 12:38:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2019-09-10 12:38:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2019-09-10 12:38:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2019-09-10 12:38:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure m5632_recover [2019-09-10 12:38:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 12:38:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 12:38:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_prereset [2019-09-10 12:38:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_postreset [2019-09-10 12:38:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_subset_driver_init [2019-09-10 12:38:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_subset_driver_exit [2019-09-10 12:38:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 12:38:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2019-09-10 12:38:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 12:38:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 12:38:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 12:38:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 12:38:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 12:38:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-09-10 12:38:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-10 12:38:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-10 12:38:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-10 12:38:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-10 12:38:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-10 12:38:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-10 12:38:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-10 12:38:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-10 12:38:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-10 12:38:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-10 12:38:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-10 12:38:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-10 12:38:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-10 12:38:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-09-10 12:38:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-09-10 12:38:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-09-10 12:38:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-10 12:38:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-09-10 12:38:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-09-10 12:38:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-09-10 12:38:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-09-10 12:38:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-09-10 12:38:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-10 12:38:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-10 12:38:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-10 12:38:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-10 12:38:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-09-10 12:38:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-10 12:38:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-10 12:38:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-10 12:38:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_udev [2019-09-10 12:38:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_udev [2019-09-10 12:38:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2019-09-10 12:38:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_udev [2019-09-10 12:38:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_udev [2019-09-10 12:38:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_udev [2019-09-10 12:38:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_udev [2019-09-10 12:38:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_udev [2019-09-10 12:38:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_udev [2019-09-10 12:38:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 12:38:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 12:38:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 12:38:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 12:38:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 12:38:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 12:38:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 12:38:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 12:38:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 12:38:56,056 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 12:38:57,615 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 12:38:57,616 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 12:38:57,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:38:57 BoogieIcfgContainer [2019-09-10 12:38:57,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 12:38:57,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 12:38:57,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 12:38:57,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 12:38:57,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:38:52" (1/3) ... [2019-09-10 12:38:57,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a918134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:38:57, skipping insertion in model container [2019-09-10 12:38:57,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:38:54" (2/3) ... [2019-09-10 12:38:57,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a918134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:38:57, skipping insertion in model container [2019-09-10 12:38:57,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:38:57" (3/3) ... [2019-09-10 12:38:57,628 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2019-09-10 12:38:57,638 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 12:38:57,650 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 12:38:57,667 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 12:38:57,702 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 12:38:57,702 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 12:38:57,702 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 12:38:57,703 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 12:38:57,703 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 12:38:57,703 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 12:38:57,703 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 12:38:57,703 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 12:38:57,740 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states. [2019-09-10 12:38:57,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 12:38:57,759 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:38:57,760 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 12:38:57,763 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:38:57,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:38:57,767 INFO L82 PathProgramCache]: Analyzing trace with hash 2071839306, now seen corresponding path program 1 times [2019-09-10 12:38:57,770 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:38:57,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:38:57,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:38:57,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:38:57,853 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:38:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:38:58,434 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2019-09-10 12:38:58,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:38:58,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:38:58,439 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:38:58,445 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:38:58,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:38:58,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:38:58,464 INFO L87 Difference]: Start difference. First operand 470 states. Second operand 3 states. [2019-09-10 12:38:58,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:38:58,611 INFO L93 Difference]: Finished difference Result 430 states and 557 transitions. [2019-09-10 12:38:58,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:38:58,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2019-09-10 12:38:58,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:38:58,648 INFO L225 Difference]: With dead ends: 430 [2019-09-10 12:38:58,648 INFO L226 Difference]: Without dead ends: 398 [2019-09-10 12:38:58,651 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:38:58,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-09-10 12:38:58,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 374. [2019-09-10 12:38:58,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2019-09-10 12:38:58,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 483 transitions. [2019-09-10 12:38:58,758 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 483 transitions. Word has length 108 [2019-09-10 12:38:58,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:38:58,759 INFO L475 AbstractCegarLoop]: Abstraction has 374 states and 483 transitions. [2019-09-10 12:38:58,759 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:38:58,759 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 483 transitions. [2019-09-10 12:38:58,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-09-10 12:38:58,765 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:38:58,765 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 12:38:58,766 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:38:58,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:38:58,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1909024841, now seen corresponding path program 1 times [2019-09-10 12:38:58,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:38:58,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:38:58,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:38:58,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:38:58,771 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:38:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:38:59,058 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2019-09-10 12:38:59,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:38:59,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 12:38:59,059 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:38:59,061 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 12:38:59,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 12:38:59,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:38:59,062 INFO L87 Difference]: Start difference. First operand 374 states and 483 transitions. Second operand 7 states. [2019-09-10 12:39:00,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:39:00,140 INFO L93 Difference]: Finished difference Result 908 states and 1202 transitions. [2019-09-10 12:39:00,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 12:39:00,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 111 [2019-09-10 12:39:00,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:39:00,152 INFO L225 Difference]: With dead ends: 908 [2019-09-10 12:39:00,152 INFO L226 Difference]: Without dead ends: 908 [2019-09-10 12:39:00,153 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-09-10 12:39:00,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2019-09-10 12:39:00,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 884. [2019-09-10 12:39:00,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2019-09-10 12:39:00,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1174 transitions. [2019-09-10 12:39:00,215 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1174 transitions. Word has length 111 [2019-09-10 12:39:00,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:39:00,216 INFO L475 AbstractCegarLoop]: Abstraction has 884 states and 1174 transitions. [2019-09-10 12:39:00,216 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 12:39:00,216 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1174 transitions. [2019-09-10 12:39:00,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-09-10 12:39:00,219 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:39:00,219 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 12:39:00,220 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:39:00,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:39:00,220 INFO L82 PathProgramCache]: Analyzing trace with hash 84050027, now seen corresponding path program 1 times [2019-09-10 12:39:00,220 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:39:00,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:00,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:39:00,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:00,228 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:39:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:39:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2019-09-10 12:39:00,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:39:00,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:39:00,609 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:39:00,611 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:39:00,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:39:00,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:39:00,612 INFO L87 Difference]: Start difference. First operand 884 states and 1174 transitions. Second operand 3 states. [2019-09-10 12:39:00,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:39:00,683 INFO L93 Difference]: Finished difference Result 895 states and 1186 transitions. [2019-09-10 12:39:00,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:39:00,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-09-10 12:39:00,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:39:00,696 INFO L225 Difference]: With dead ends: 895 [2019-09-10 12:39:00,696 INFO L226 Difference]: Without dead ends: 895 [2019-09-10 12:39:00,697 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:39:00,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2019-09-10 12:39:00,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 884. [2019-09-10 12:39:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2019-09-10 12:39:00,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1173 transitions. [2019-09-10 12:39:00,748 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1173 transitions. Word has length 132 [2019-09-10 12:39:00,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:39:00,750 INFO L475 AbstractCegarLoop]: Abstraction has 884 states and 1173 transitions. [2019-09-10 12:39:00,750 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:39:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1173 transitions. [2019-09-10 12:39:00,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-09-10 12:39:00,759 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:39:00,760 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 12:39:00,760 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:39:00,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:39:00,761 INFO L82 PathProgramCache]: Analyzing trace with hash 141308329, now seen corresponding path program 1 times [2019-09-10 12:39:00,761 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:39:00,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:00,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:39:00,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:00,768 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:39:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:39:01,072 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2019-09-10 12:39:01,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:39:01,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:39:01,073 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:39:01,074 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:39:01,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:39:01,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:39:01,075 INFO L87 Difference]: Start difference. First operand 884 states and 1173 transitions. Second operand 3 states. [2019-09-10 12:39:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:39:01,094 INFO L93 Difference]: Finished difference Result 883 states and 1171 transitions. [2019-09-10 12:39:01,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:39:01,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-09-10 12:39:01,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:39:01,101 INFO L225 Difference]: With dead ends: 883 [2019-09-10 12:39:01,101 INFO L226 Difference]: Without dead ends: 883 [2019-09-10 12:39:01,102 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:39:01,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2019-09-10 12:39:01,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2019-09-10 12:39:01,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 883 states. [2019-09-10 12:39:01,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1171 transitions. [2019-09-10 12:39:01,144 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1171 transitions. Word has length 132 [2019-09-10 12:39:01,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:39:01,146 INFO L475 AbstractCegarLoop]: Abstraction has 883 states and 1171 transitions. [2019-09-10 12:39:01,146 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:39:01,146 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1171 transitions. [2019-09-10 12:39:01,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-09-10 12:39:01,149 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:39:01,149 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 12:39:01,150 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:39:01,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:39:01,150 INFO L82 PathProgramCache]: Analyzing trace with hash 85399650, now seen corresponding path program 1 times [2019-09-10 12:39:01,151 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:39:01,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:01,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:39:01,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:01,159 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:39:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:39:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2019-09-10 12:39:01,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:39:01,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:39:01,378 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:39:01,379 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:39:01,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:39:01,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:39:01,380 INFO L87 Difference]: Start difference. First operand 883 states and 1171 transitions. Second operand 3 states. [2019-09-10 12:39:01,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:39:01,393 INFO L93 Difference]: Finished difference Result 882 states and 1169 transitions. [2019-09-10 12:39:01,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:39:01,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-09-10 12:39:01,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:39:01,399 INFO L225 Difference]: With dead ends: 882 [2019-09-10 12:39:01,399 INFO L226 Difference]: Without dead ends: 882 [2019-09-10 12:39:01,400 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:39:01,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2019-09-10 12:39:01,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2019-09-10 12:39:01,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2019-09-10 12:39:01,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1169 transitions. [2019-09-10 12:39:01,433 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1169 transitions. Word has length 133 [2019-09-10 12:39:01,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:39:01,434 INFO L475 AbstractCegarLoop]: Abstraction has 882 states and 1169 transitions. [2019-09-10 12:39:01,434 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:39:01,434 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1169 transitions. [2019-09-10 12:39:01,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-09-10 12:39:01,437 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:39:01,437 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 12:39:01,438 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:39:01,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:39:01,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1647764532, now seen corresponding path program 1 times [2019-09-10 12:39:01,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:39:01,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:01,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:39:01,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:01,444 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:39:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:39:01,790 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2019-09-10 12:39:01,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:39:01,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:39:01,791 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:39:01,791 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:39:01,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:39:01,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:39:01,792 INFO L87 Difference]: Start difference. First operand 882 states and 1169 transitions. Second operand 3 states. [2019-09-10 12:39:01,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:39:01,805 INFO L93 Difference]: Finished difference Result 881 states and 1167 transitions. [2019-09-10 12:39:01,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:39:01,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2019-09-10 12:39:01,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:39:01,811 INFO L225 Difference]: With dead ends: 881 [2019-09-10 12:39:01,811 INFO L226 Difference]: Without dead ends: 881 [2019-09-10 12:39:01,812 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:39:01,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2019-09-10 12:39:01,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2019-09-10 12:39:01,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2019-09-10 12:39:01,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1167 transitions. [2019-09-10 12:39:01,841 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1167 transitions. Word has length 134 [2019-09-10 12:39:01,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:39:01,844 INFO L475 AbstractCegarLoop]: Abstraction has 881 states and 1167 transitions. [2019-09-10 12:39:01,844 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:39:01,844 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1167 transitions. [2019-09-10 12:39:01,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-09-10 12:39:01,846 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:39:01,846 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 12:39:01,846 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:39:01,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:39:01,847 INFO L82 PathProgramCache]: Analyzing trace with hash 458725541, now seen corresponding path program 1 times [2019-09-10 12:39:01,847 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:39:01,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:01,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:39:01,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:01,851 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:39:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:39:02,062 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2019-09-10 12:39:02,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:39:02,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:39:02,063 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:39:02,064 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:39:02,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:39:02,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:39:02,065 INFO L87 Difference]: Start difference. First operand 881 states and 1167 transitions. Second operand 3 states. [2019-09-10 12:39:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:39:02,108 INFO L93 Difference]: Finished difference Result 1686 states and 2259 transitions. [2019-09-10 12:39:02,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:39:02,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-09-10 12:39:02,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:39:02,122 INFO L225 Difference]: With dead ends: 1686 [2019-09-10 12:39:02,122 INFO L226 Difference]: Without dead ends: 1668 [2019-09-10 12:39:02,123 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:39:02,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2019-09-10 12:39:02,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1542. [2019-09-10 12:39:02,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1542 states. [2019-09-10 12:39:02,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2071 transitions. [2019-09-10 12:39:02,187 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2071 transitions. Word has length 135 [2019-09-10 12:39:02,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:39:02,187 INFO L475 AbstractCegarLoop]: Abstraction has 1542 states and 2071 transitions. [2019-09-10 12:39:02,187 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:39:02,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2071 transitions. [2019-09-10 12:39:02,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-09-10 12:39:02,193 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:39:02,194 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 12:39:02,194 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:39:02,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:39:02,194 INFO L82 PathProgramCache]: Analyzing trace with hash -227121630, now seen corresponding path program 1 times [2019-09-10 12:39:02,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:39:02,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:02,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:39:02,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:02,200 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:39:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:39:02,406 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2019-09-10 12:39:02,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:39:02,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:39:02,407 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:39:02,407 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:39:02,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:39:02,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:39:02,408 INFO L87 Difference]: Start difference. First operand 1542 states and 2071 transitions. Second operand 3 states. [2019-09-10 12:39:02,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:39:02,521 INFO L93 Difference]: Finished difference Result 1544 states and 2063 transitions. [2019-09-10 12:39:02,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:39:02,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2019-09-10 12:39:02,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:39:02,534 INFO L225 Difference]: With dead ends: 1544 [2019-09-10 12:39:02,534 INFO L226 Difference]: Without dead ends: 1544 [2019-09-10 12:39:02,535 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:39:02,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2019-09-10 12:39:02,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1536. [2019-09-10 12:39:02,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1536 states. [2019-09-10 12:39:02,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 2056 transitions. [2019-09-10 12:39:02,589 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 2056 transitions. Word has length 176 [2019-09-10 12:39:02,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:39:02,590 INFO L475 AbstractCegarLoop]: Abstraction has 1536 states and 2056 transitions. [2019-09-10 12:39:02,590 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:39:02,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 2056 transitions. [2019-09-10 12:39:02,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-09-10 12:39:02,594 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:39:02,594 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 12:39:02,595 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:39:02,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:39:02,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1929304876, now seen corresponding path program 1 times [2019-09-10 12:39:02,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:39:02,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:02,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:39:02,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:02,599 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:39:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:39:03,014 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2019-09-10 12:39:03,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:39:03,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 12:39:03,015 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:39:03,016 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 12:39:03,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 12:39:03,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-10 12:39:03,017 INFO L87 Difference]: Start difference. First operand 1536 states and 2056 transitions. Second operand 10 states. [2019-09-10 12:39:03,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:39:03,096 INFO L93 Difference]: Finished difference Result 1547 states and 2055 transitions. [2019-09-10 12:39:03,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 12:39:03,096 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2019-09-10 12:39:03,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:39:03,105 INFO L225 Difference]: With dead ends: 1547 [2019-09-10 12:39:03,105 INFO L226 Difference]: Without dead ends: 1547 [2019-09-10 12:39:03,106 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-09-10 12:39:03,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2019-09-10 12:39:03,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1541. [2019-09-10 12:39:03,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1541 states. [2019-09-10 12:39:03,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2049 transitions. [2019-09-10 12:39:03,151 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2049 transitions. Word has length 181 [2019-09-10 12:39:03,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:39:03,152 INFO L475 AbstractCegarLoop]: Abstraction has 1541 states and 2049 transitions. [2019-09-10 12:39:03,152 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 12:39:03,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2049 transitions. [2019-09-10 12:39:03,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-09-10 12:39:03,157 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:39:03,157 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 12:39:03,158 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:39:03,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:39:03,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1510315830, now seen corresponding path program 1 times [2019-09-10 12:39:03,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:39:03,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:03,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:39:03,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:39:03,163 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:39:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:39:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2019-09-10 12:39:03,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:39:03,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 12:39:03,422 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:39:03,423 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 12:39:03,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 12:39:03,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:39:03,423 INFO L87 Difference]: Start difference. First operand 1541 states and 2049 transitions. Second operand 7 states. [2019-09-10 12:39:03,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:39:03,457 INFO L93 Difference]: Finished difference Result 792 states and 1024 transitions. [2019-09-10 12:39:03,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 12:39:03,458 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 184 [2019-09-10 12:39:03,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:39:03,458 INFO L225 Difference]: With dead ends: 792 [2019-09-10 12:39:03,458 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 12:39:03,459 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:39:03,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 12:39:03,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 12:39:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 12:39:03,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 12:39:03,460 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2019-09-10 12:39:03,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:39:03,460 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 12:39:03,460 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 12:39:03,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 12:39:03,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 12:39:03,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:39:03 BoogieIcfgContainer [2019-09-10 12:39:03,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 12:39:03,471 INFO L168 Benchmark]: Toolchain (without parser) took 10630.15 ms. Allocated memory was 133.7 MB in the beginning and 427.3 MB in the end (delta: 293.6 MB). Free memory was 80.8 MB in the beginning and 146.3 MB in the end (delta: -65.5 MB). Peak memory consumption was 228.1 MB. Max. memory is 7.1 GB. [2019-09-10 12:39:03,472 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 133.7 MB. Free memory is still 107.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 12:39:03,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1976.53 ms. Allocated memory was 133.7 MB in the beginning and 230.7 MB in the end (delta: 97.0 MB). Free memory was 80.3 MB in the beginning and 105.8 MB in the end (delta: -25.5 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. [2019-09-10 12:39:03,475 INFO L168 Benchmark]: Boogie Preprocessor took 267.10 ms. Allocated memory is still 230.7 MB. Free memory was 105.8 MB in the beginning and 93.0 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-09-10 12:39:03,476 INFO L168 Benchmark]: RCFGBuilder took 2533.01 ms. Allocated memory was 230.7 MB in the beginning and 275.3 MB in the end (delta: 44.6 MB). Free memory was 93.0 MB in the beginning and 131.5 MB in the end (delta: -38.5 MB). Peak memory consumption was 64.8 MB. Max. memory is 7.1 GB. [2019-09-10 12:39:03,481 INFO L168 Benchmark]: TraceAbstraction took 5847.72 ms. Allocated memory was 275.3 MB in the beginning and 427.3 MB in the end (delta: 152.0 MB). Free memory was 131.5 MB in the beginning and 146.3 MB in the end (delta: -14.8 MB). Peak memory consumption was 137.3 MB. Max. memory is 7.1 GB. [2019-09-10 12:39:03,487 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 133.7 MB. Free memory is still 107.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1976.53 ms. Allocated memory was 133.7 MB in the beginning and 230.7 MB in the end (delta: 97.0 MB). Free memory was 80.3 MB in the beginning and 105.8 MB in the end (delta: -25.5 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 267.10 ms. Allocated memory is still 230.7 MB. Free memory was 105.8 MB in the beginning and 93.0 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2533.01 ms. Allocated memory was 230.7 MB in the beginning and 275.3 MB in the end (delta: 44.6 MB). Free memory was 93.0 MB in the beginning and 131.5 MB in the end (delta: -38.5 MB). Peak memory consumption was 64.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5847.72 ms. Allocated memory was 275.3 MB in the beginning and 427.3 MB in the end (delta: 152.0 MB). Free memory was 131.5 MB in the beginning and 146.3 MB in the end (delta: -14.8 MB). Peak memory consumption was 137.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6328]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 97 procedures, 622 locations, 1 error locations. SAFE Result, 5.7s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3505 SDtfs, 2837 SDslu, 5609 SDs, 0 SdLazy, 455 SolverSat, 169 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1542occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 199 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1426 NumberOfCodeBlocks, 1426 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1416 ConstructedInterpolants, 0 QuantifiedInterpolants, 266100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 1813/1813 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...