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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:21:27,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:21:27,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:21:27,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:21:27,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:21:27,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:21:27,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:21:27,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:21:27,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:21:27,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:21:27,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:21:27,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:21:27,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:21:27,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:21:27,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:21:27,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:21:27,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:21:27,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:21:27,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:21:27,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:21:27,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:21:27,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:21:27,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:21:27,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:21:27,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:21:27,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:21:27,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:21:27,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:21:27,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:21:27,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:21:27,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:21:27,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:21:27,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:21:27,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:21:27,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:21:27,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:21:27,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:21:27,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:21:27,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:21:27,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:21:27,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:21:27,265 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 00:21:27,287 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:21:27,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:21:27,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:21:27,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:21:27,289 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:21:27,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:21:27,290 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:21:27,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:21:27,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:21:27,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:21:27,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:21:27,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:21:27,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:21:27,291 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:21:27,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:21:27,291 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:21:27,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:21:27,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:21:27,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:21:27,292 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:21:27,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:21:27,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:21:27,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:21:27,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:21:27,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:21:27,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:21:27,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:21:27,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:21:27,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 00:21:27,622 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:21:27,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:21:27,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:21:27,648 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:21:27,649 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:21:27,650 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2019-10-15 00:21:27,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2017ad2b5/25a56641497045bab8fb3a982cb75296/FLAG06b3826a9 [2019-10-15 00:21:28,517 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:21:28,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2019-10-15 00:21:28,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2017ad2b5/25a56641497045bab8fb3a982cb75296/FLAG06b3826a9 [2019-10-15 00:21:29,057 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2017ad2b5/25a56641497045bab8fb3a982cb75296 [2019-10-15 00:21:29,068 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:21:29,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:21:29,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:21:29,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:21:29,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:21:29,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:21:29" (1/1) ... [2019-10-15 00:21:29,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f84d9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:29, skipping insertion in model container [2019-10-15 00:21:29,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:21:29" (1/1) ... [2019-10-15 00:21:29,088 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:21:29,214 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:21:30,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:21:30,587 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:21:30,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:21:31,102 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:21:31,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:31 WrapperNode [2019-10-15 00:21:31,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:21:31,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:21:31,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:21:31,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:21:31,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:31" (1/1) ... [2019-10-15 00:21:31,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:31" (1/1) ... [2019-10-15 00:21:31,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:31" (1/1) ... [2019-10-15 00:21:31,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:31" (1/1) ... [2019-10-15 00:21:31,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:31" (1/1) ... [2019-10-15 00:21:31,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:31" (1/1) ... [2019-10-15 00:21:31,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:31" (1/1) ... [2019-10-15 00:21:31,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:21:31,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:21:31,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:21:31,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:21:31,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:31" (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 [2019-10-15 00:21:31,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:21:31,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:21:31,537 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-15 00:21:31,538 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-15 00:21:31,538 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-15 00:21:31,539 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-15 00:21:31,539 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 00:21:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-15 00:21:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-15 00:21:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 00:21:31,543 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 00:21:31,543 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-15 00:21:31,543 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-10-15 00:21:31,545 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-15 00:21:31,545 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-15 00:21:31,545 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-15 00:21:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-15 00:21:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-15 00:21:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_int_must_check_helper [2019-10-15 00:21:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_init [2019-10-15 00:21:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_free [2019-10-15 00:21:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_write [2019-10-15 00:21:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2019-10-15 00:21:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_from_lirc [2019-10-15 00:21:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2019-10-15 00:21:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2019-10-15 00:21:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2019-10-15 00:21:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2019-10-15 00:21:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_callback [2019-10-15 00:21:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2019-10-15 00:21:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_close [2019-10-15 00:21:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_data [2019-10-15 00:21:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2019-10-15 00:21:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback [2019-10-15 00:21:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_probe [2019-10-15 00:21:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2019-10-15 00:21:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_suspend [2019-10-15 00:21:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2019-10-15 00:21:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_init [2019-10-15 00:21:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_exit [2019-10-15 00:21:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-15 00:21:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-15 00:21:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:21:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-15 00:21:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-15 00:21:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-15 00:21:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-15 00:21:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-15 00:21:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-15 00:21:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 00:21:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 00:21:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_alloc [2019-10-15 00:21:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2019-10-15 00:21:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in [2019-10-15 00:21:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in_r [2019-10-15 00:21:31,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 00:21:31,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 00:21:31,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 00:21:31,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 00:21:31,558 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-15 00:21:31,558 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-15 00:21:31,559 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:21:31,559 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-15 00:21:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2019-10-15 00:21:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 00:21:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2019-10-15 00:21:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 00:21:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-15 00:21:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-15 00:21:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 00:21:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-15 00:21:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_register_driver [2019-10-15 00:21:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_unregister_driver [2019-10-15 00:21:31,562 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2019-10-15 00:21:31,562 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-15 00:21:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 00:21:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 00:21:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-15 00:21:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2019-10-15 00:21:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2019-10-15 00:21:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2019-10-15 00:21:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-15 00:21:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_id [2019-10-15 00:21:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2019-10-15 00:21:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-15 00:21:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-15 00:21:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2019-10-15 00:21:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-15 00:21:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 00:21:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 00:21:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 00:21:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-15 00:21:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:21:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 00:21:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-15 00:21:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2019-10-15 00:21:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 00:21:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-15 00:21:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-15 00:21:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-15 00:21:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-15 00:21:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:21:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-15 00:21:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:21:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 00:21:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-15 00:21:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:21:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 00:21:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-15 00:21:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 00:21:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 00:21:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 00:21:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-15 00:21:31,571 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 00:21:31,571 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-15 00:21:31,571 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2019-10-15 00:21:31,572 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-15 00:21:31,572 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2019-10-15 00:21:31,572 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 00:21:31,572 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-15 00:21:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-15 00:21:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 00:21:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 00:21:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 00:21:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 00:21:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 00:21:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2019-10-15 00:21:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-15 00:21:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-15 00:21:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-15 00:21:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-15 00:21:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-10-15 00:21:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-15 00:21:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-15 00:21:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:21:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2019-10-15 00:21:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_id [2019-10-15 00:21:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2019-10-15 00:21:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-15 00:21:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-15 00:21:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:21:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-15 00:21:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2019-10-15 00:21:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2019-10-15 00:21:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-15 00:21:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:21:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-15 00:21:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-15 00:21:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-15 00:21:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-15 00:21:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-15 00:21:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-15 00:21:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-15 00:21:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_int_must_check_helper [2019-10-15 00:21:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_alloc [2019-10-15 00:21:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2019-10-15 00:21:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in [2019-10-15 00:21:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in_r [2019-10-15 00:21:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_init [2019-10-15 00:21:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_free [2019-10-15 00:21:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_write [2019-10-15 00:21:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_register_driver [2019-10-15 00:21:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_unregister_driver [2019-10-15 00:21:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure imon_probe [2019-10-15 00:21:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2019-10-15 00:21:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback [2019-10-15 00:21:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_callback [2019-10-15 00:21:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2019-10-15 00:21:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure imon_suspend [2019-10-15 00:21:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2019-10-15 00:21:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2019-10-15 00:21:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2019-10-15 00:21:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2019-10-15 00:21:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure ir_close [2019-10-15 00:21:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure imon_init [2019-10-15 00:21:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure imon_exit [2019-10-15 00:21:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2019-10-15 00:21:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_from_lirc [2019-10-15 00:21:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2019-10-15 00:21:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 00:21:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:21:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure submit_data [2019-10-15 00:21:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2019-10-15 00:21:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-15 00:21:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 00:21:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-15 00:21:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 00:21:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:21:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:21:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-15 00:21:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-15 00:21:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-15 00:21:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 00:21:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 00:21:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 00:21:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 00:21:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:21:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:21:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 00:21:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:21:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:21:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 00:21:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 00:21:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 00:21:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 00:21:33,329 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-15 00:21:39,844 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 00:21:39,875 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-15 00:21:39,875 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-15 00:21:40,031 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 00:21:40,079 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume !false; [2019-10-15 00:21:40,079 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume false; [2019-10-15 00:21:40,444 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:21:40,444 INFO L284 CfgBuilder]: Removed 40 assume(true) statements. [2019-10-15 00:21:40,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:21:40 BoogieIcfgContainer [2019-10-15 00:21:40,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:21:40,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:21:40,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:21:40,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:21:40,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:21:29" (1/3) ... [2019-10-15 00:21:40,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd815bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:21:40, skipping insertion in model container [2019-10-15 00:21:40,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:31" (2/3) ... [2019-10-15 00:21:40,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd815bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:21:40, skipping insertion in model container [2019-10-15 00:21:40,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:21:40" (3/3) ... [2019-10-15 00:21:40,455 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2019-10-15 00:21:40,465 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:21:40,475 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:21:40,487 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:21:40,535 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:21:40,535 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:21:40,535 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:21:40,536 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:21:40,536 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:21:40,536 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:21:40,536 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:21:40,536 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:21:40,578 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states. [2019-10-15 00:21:40,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-15 00:21:40,588 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:40,589 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:40,592 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:40,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:40,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1136421439, now seen corresponding path program 1 times [2019-10-15 00:21:40,609 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:40,610 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2152333] [2019-10-15 00:21:40,610 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:40,610 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:40,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:41,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:21:41,424 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2152333] [2019-10-15 00:21:41,425 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:41,425 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:41,426 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830478990] [2019-10-15 00:21:41,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:41,432 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:41,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:41,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:41,449 INFO L87 Difference]: Start difference. First operand 690 states. Second operand 3 states. [2019-10-15 00:21:41,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:41,623 INFO L93 Difference]: Finished difference Result 1239 states and 1738 transitions. [2019-10-15 00:21:41,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:41,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-10-15 00:21:41,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:41,663 INFO L225 Difference]: With dead ends: 1239 [2019-10-15 00:21:41,663 INFO L226 Difference]: Without dead ends: 818 [2019-10-15 00:21:41,675 INFO L600 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 [2019-10-15 00:21:41,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2019-10-15 00:21:41,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 815. [2019-10-15 00:21:41,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2019-10-15 00:21:41,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1025 transitions. [2019-10-15 00:21:41,833 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1025 transitions. Word has length 30 [2019-10-15 00:21:41,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:41,834 INFO L462 AbstractCegarLoop]: Abstraction has 815 states and 1025 transitions. [2019-10-15 00:21:41,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:41,834 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1025 transitions. [2019-10-15 00:21:41,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-15 00:21:41,835 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:41,835 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:41,836 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:41,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:41,836 INFO L82 PathProgramCache]: Analyzing trace with hash -869666700, now seen corresponding path program 1 times [2019-10-15 00:21:41,836 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:41,836 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581753727] [2019-10-15 00:21:41,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:41,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:41,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:21:42,146 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581753727] [2019-10-15 00:21:42,146 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:42,146 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:42,146 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415756652] [2019-10-15 00:21:42,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:42,148 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:42,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:42,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:42,149 INFO L87 Difference]: Start difference. First operand 815 states and 1025 transitions. Second operand 3 states. [2019-10-15 00:21:42,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:42,197 INFO L93 Difference]: Finished difference Result 817 states and 1026 transitions. [2019-10-15 00:21:42,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:42,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-10-15 00:21:42,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:42,207 INFO L225 Difference]: With dead ends: 817 [2019-10-15 00:21:42,207 INFO L226 Difference]: Without dead ends: 803 [2019-10-15 00:21:42,208 INFO L600 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 [2019-10-15 00:21:42,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2019-10-15 00:21:42,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2019-10-15 00:21:42,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-10-15 00:21:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1009 transitions. [2019-10-15 00:21:42,306 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1009 transitions. Word has length 31 [2019-10-15 00:21:42,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:42,307 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1009 transitions. [2019-10-15 00:21:42,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:42,307 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1009 transitions. [2019-10-15 00:21:42,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-15 00:21:42,319 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:42,319 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:42,319 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:42,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:42,320 INFO L82 PathProgramCache]: Analyzing trace with hash -329654060, now seen corresponding path program 1 times [2019-10-15 00:21:42,320 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:42,320 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881584556] [2019-10-15 00:21:42,320 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:42,320 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:42,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:21:42,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881584556] [2019-10-15 00:21:42,701 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:42,701 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:42,701 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288148651] [2019-10-15 00:21:42,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:42,702 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:42,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:42,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:42,704 INFO L87 Difference]: Start difference. First operand 803 states and 1009 transitions. Second operand 3 states. [2019-10-15 00:21:42,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:42,818 INFO L93 Difference]: Finished difference Result 1604 states and 2036 transitions. [2019-10-15 00:21:42,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:42,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-10-15 00:21:42,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:42,826 INFO L225 Difference]: With dead ends: 1604 [2019-10-15 00:21:42,827 INFO L226 Difference]: Without dead ends: 827 [2019-10-15 00:21:42,830 INFO L600 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 [2019-10-15 00:21:42,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2019-10-15 00:21:42,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 817. [2019-10-15 00:21:42,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2019-10-15 00:21:42,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1023 transitions. [2019-10-15 00:21:42,867 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1023 transitions. Word has length 64 [2019-10-15 00:21:42,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:42,868 INFO L462 AbstractCegarLoop]: Abstraction has 817 states and 1023 transitions. [2019-10-15 00:21:42,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:42,868 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1023 transitions. [2019-10-15 00:21:42,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-15 00:21:42,872 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:42,872 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:42,872 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:42,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:42,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1451896951, now seen corresponding path program 1 times [2019-10-15 00:21:42,873 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:42,873 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862990329] [2019-10-15 00:21:42,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:42,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:42,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 00:21:43,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862990329] [2019-10-15 00:21:43,131 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:43,131 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:21:43,132 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280473159] [2019-10-15 00:21:43,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:21:43,133 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:43,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:21:43,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:21:43,133 INFO L87 Difference]: Start difference. First operand 817 states and 1023 transitions. Second operand 5 states. [2019-10-15 00:21:43,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:43,338 INFO L93 Difference]: Finished difference Result 1682 states and 2138 transitions. [2019-10-15 00:21:43,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 00:21:43,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2019-10-15 00:21:43,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:43,347 INFO L225 Difference]: With dead ends: 1682 [2019-10-15 00:21:43,347 INFO L226 Difference]: Without dead ends: 889 [2019-10-15 00:21:43,351 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:21:43,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2019-10-15 00:21:43,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 868. [2019-10-15 00:21:43,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 868 states. [2019-10-15 00:21:43,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1100 transitions. [2019-10-15 00:21:43,428 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1100 transitions. Word has length 111 [2019-10-15 00:21:43,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:43,429 INFO L462 AbstractCegarLoop]: Abstraction has 868 states and 1100 transitions. [2019-10-15 00:21:43,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:21:43,429 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1100 transitions. [2019-10-15 00:21:43,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-15 00:21:43,431 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:43,431 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:43,432 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:43,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:43,432 INFO L82 PathProgramCache]: Analyzing trace with hash -860033774, now seen corresponding path program 1 times [2019-10-15 00:21:43,432 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:43,432 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073079505] [2019-10-15 00:21:43,433 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:43,433 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:43,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 00:21:43,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073079505] [2019-10-15 00:21:43,700 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:43,700 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:43,700 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231397491] [2019-10-15 00:21:43,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:43,701 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:43,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:43,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:43,702 INFO L87 Difference]: Start difference. First operand 868 states and 1100 transitions. Second operand 3 states. [2019-10-15 00:21:43,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:43,792 INFO L93 Difference]: Finished difference Result 1736 states and 2220 transitions. [2019-10-15 00:21:43,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:43,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2019-10-15 00:21:43,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:43,799 INFO L225 Difference]: With dead ends: 1736 [2019-10-15 00:21:43,800 INFO L226 Difference]: Without dead ends: 894 [2019-10-15 00:21:43,803 INFO L600 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 [2019-10-15 00:21:43,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2019-10-15 00:21:43,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 880. [2019-10-15 00:21:43,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2019-10-15 00:21:43,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1112 transitions. [2019-10-15 00:21:43,841 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1112 transitions. Word has length 104 [2019-10-15 00:21:43,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:43,842 INFO L462 AbstractCegarLoop]: Abstraction has 880 states and 1112 transitions. [2019-10-15 00:21:43,842 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:43,842 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1112 transitions. [2019-10-15 00:21:43,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-15 00:21:43,845 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:43,845 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:43,845 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:43,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:43,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1406187874, now seen corresponding path program 1 times [2019-10-15 00:21:43,846 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:43,846 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504693855] [2019-10-15 00:21:43,846 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:43,846 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:43,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:44,130 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-15 00:21:44,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504693855] [2019-10-15 00:21:44,131 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:44,131 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:44,131 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593930811] [2019-10-15 00:21:44,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:44,133 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:44,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:44,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:44,134 INFO L87 Difference]: Start difference. First operand 880 states and 1112 transitions. Second operand 3 states. [2019-10-15 00:21:44,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:44,198 INFO L93 Difference]: Finished difference Result 1800 states and 2292 transitions. [2019-10-15 00:21:44,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:44,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-15 00:21:44,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:44,207 INFO L225 Difference]: With dead ends: 1800 [2019-10-15 00:21:44,207 INFO L226 Difference]: Without dead ends: 946 [2019-10-15 00:21:44,211 INFO L600 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 [2019-10-15 00:21:44,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2019-10-15 00:21:44,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 933. [2019-10-15 00:21:44,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2019-10-15 00:21:44,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1182 transitions. [2019-10-15 00:21:44,265 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1182 transitions. Word has length 142 [2019-10-15 00:21:44,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:44,266 INFO L462 AbstractCegarLoop]: Abstraction has 933 states and 1182 transitions. [2019-10-15 00:21:44,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:44,267 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1182 transitions. [2019-10-15 00:21:44,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 00:21:44,271 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:44,271 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:44,272 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:44,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:44,273 INFO L82 PathProgramCache]: Analyzing trace with hash 199957720, now seen corresponding path program 1 times [2019-10-15 00:21:44,273 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:44,273 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950838084] [2019-10-15 00:21:44,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:44,274 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:44,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-10-15 00:21:44,617 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950838084] [2019-10-15 00:21:44,618 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:44,618 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:44,618 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875085527] [2019-10-15 00:21:44,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:44,619 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:44,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:44,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:44,619 INFO L87 Difference]: Start difference. First operand 933 states and 1182 transitions. Second operand 3 states. [2019-10-15 00:21:44,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:44,705 INFO L93 Difference]: Finished difference Result 1866 states and 2384 transitions. [2019-10-15 00:21:44,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:44,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-15 00:21:44,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:44,712 INFO L225 Difference]: With dead ends: 1866 [2019-10-15 00:21:44,712 INFO L226 Difference]: Without dead ends: 959 [2019-10-15 00:21:44,716 INFO L600 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 [2019-10-15 00:21:44,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2019-10-15 00:21:44,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 943. [2019-10-15 00:21:44,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2019-10-15 00:21:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1192 transitions. [2019-10-15 00:21:44,759 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1192 transitions. Word has length 154 [2019-10-15 00:21:44,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:44,760 INFO L462 AbstractCegarLoop]: Abstraction has 943 states and 1192 transitions. [2019-10-15 00:21:44,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:44,760 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1192 transitions. [2019-10-15 00:21:44,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-15 00:21:44,763 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:44,764 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:44,764 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:44,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:44,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1713023539, now seen corresponding path program 1 times [2019-10-15 00:21:44,765 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:44,765 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118455152] [2019-10-15 00:21:44,765 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:44,765 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:44,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:44,880 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 00:21:44,880 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1840880533] [2019-10-15 00:21:44,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:21:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:46,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 4078 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-15 00:21:46,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 00:21:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-10-15 00:21:46,434 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 00:21:46,680 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-10-15 00:21:46,681 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118455152] [2019-10-15 00:21:46,682 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 00:21:46,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840880533] [2019-10-15 00:21:46,682 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:46,683 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-15 00:21:46,683 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930226641] [2019-10-15 00:21:46,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 00:21:46,684 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:46,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 00:21:46,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 00:21:46,686 INFO L87 Difference]: Start difference. First operand 943 states and 1192 transitions. Second operand 4 states. [2019-10-15 00:21:46,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:46,895 INFO L93 Difference]: Finished difference Result 1940 states and 2502 transitions. [2019-10-15 00:21:46,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 00:21:46,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 189 [2019-10-15 00:21:46,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:46,903 INFO L225 Difference]: With dead ends: 1940 [2019-10-15 00:21:46,903 INFO L226 Difference]: Without dead ends: 1023 [2019-10-15 00:21:46,906 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 00:21:46,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2019-10-15 00:21:46,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 953. [2019-10-15 00:21:46,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2019-10-15 00:21:46,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1204 transitions. [2019-10-15 00:21:46,955 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1204 transitions. Word has length 189 [2019-10-15 00:21:46,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:46,956 INFO L462 AbstractCegarLoop]: Abstraction has 953 states and 1204 transitions. [2019-10-15 00:21:46,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 00:21:46,956 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1204 transitions. [2019-10-15 00:21:46,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-15 00:21:46,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:46,960 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:47,175 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:21:47,176 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:47,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:47,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1867378716, now seen corresponding path program 1 times [2019-10-15 00:21:47,176 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:47,177 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569597497] [2019-10-15 00:21:47,177 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:47,177 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:47,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:47,688 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-15 00:21:47,689 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569597497] [2019-10-15 00:21:47,689 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:47,689 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 00:21:47,689 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216239615] [2019-10-15 00:21:47,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 00:21:47,691 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:47,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 00:21:47,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 00:21:47,692 INFO L87 Difference]: Start difference. First operand 953 states and 1204 transitions. Second operand 4 states. [2019-10-15 00:21:47,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:47,830 INFO L93 Difference]: Finished difference Result 1984 states and 2557 transitions. [2019-10-15 00:21:47,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 00:21:47,831 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 193 [2019-10-15 00:21:47,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:47,840 INFO L225 Difference]: With dead ends: 1984 [2019-10-15 00:21:47,840 INFO L226 Difference]: Without dead ends: 1057 [2019-10-15 00:21:47,845 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 00:21:47,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2019-10-15 00:21:47,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1005. [2019-10-15 00:21:47,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1005 states. [2019-10-15 00:21:47,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1288 transitions. [2019-10-15 00:21:47,906 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1288 transitions. Word has length 193 [2019-10-15 00:21:47,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:47,907 INFO L462 AbstractCegarLoop]: Abstraction has 1005 states and 1288 transitions. [2019-10-15 00:21:47,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 00:21:47,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1288 transitions. [2019-10-15 00:21:47,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 00:21:47,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:47,915 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:47,915 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:47,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:47,916 INFO L82 PathProgramCache]: Analyzing trace with hash -510780855, now seen corresponding path program 1 times [2019-10-15 00:21:47,916 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:47,917 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437776832] [2019-10-15 00:21:47,917 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:47,917 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:47,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:48,053 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 00:21:48,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1026949426] [2019-10-15 00:21:48,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:21:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:49,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 4146 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-15 00:21:49,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 00:21:49,386 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2019-10-15 00:21:49,386 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 00:21:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2019-10-15 00:21:49,580 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437776832] [2019-10-15 00:21:49,580 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 00:21:49,580 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026949426] [2019-10-15 00:21:49,580 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:49,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-15 00:21:49,581 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596680379] [2019-10-15 00:21:49,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:49,582 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:49,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:49,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:49,582 INFO L87 Difference]: Start difference. First operand 1005 states and 1288 transitions. Second operand 3 states. [2019-10-15 00:21:49,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:49,698 INFO L93 Difference]: Finished difference Result 2024 states and 2621 transitions. [2019-10-15 00:21:49,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:49,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2019-10-15 00:21:49,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:49,714 INFO L225 Difference]: With dead ends: 2024 [2019-10-15 00:21:49,714 INFO L226 Difference]: Without dead ends: 1045 [2019-10-15 00:21:49,719 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 411 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:49,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-10-15 00:21:49,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1009. [2019-10-15 00:21:49,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2019-10-15 00:21:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1292 transitions. [2019-10-15 00:21:49,884 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1292 transitions. Word has length 207 [2019-10-15 00:21:49,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:49,885 INFO L462 AbstractCegarLoop]: Abstraction has 1009 states and 1292 transitions. [2019-10-15 00:21:49,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:49,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1292 transitions. [2019-10-15 00:21:49,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-15 00:21:49,891 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:49,891 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:50,104 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:21:50,105 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:50,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:50,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1966685246, now seen corresponding path program 1 times [2019-10-15 00:21:50,105 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:50,106 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342182953] [2019-10-15 00:21:50,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:50,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:50,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:50,648 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 00:21:50,649 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342182953] [2019-10-15 00:21:50,649 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:50,650 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 00:21:50,650 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345268421] [2019-10-15 00:21:50,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 00:21:50,651 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:50,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 00:21:50,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 00:21:50,652 INFO L87 Difference]: Start difference. First operand 1009 states and 1292 transitions. Second operand 9 states. [2019-10-15 00:21:53,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:53,374 INFO L93 Difference]: Finished difference Result 2014 states and 2585 transitions. [2019-10-15 00:21:53,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:21:53,374 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 206 [2019-10-15 00:21:53,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:53,381 INFO L225 Difference]: With dead ends: 2014 [2019-10-15 00:21:53,381 INFO L226 Difference]: Without dead ends: 1027 [2019-10-15 00:21:53,384 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-15 00:21:53,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2019-10-15 00:21:53,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1009. [2019-10-15 00:21:53,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2019-10-15 00:21:53,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1291 transitions. [2019-10-15 00:21:53,428 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1291 transitions. Word has length 206 [2019-10-15 00:21:53,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:53,429 INFO L462 AbstractCegarLoop]: Abstraction has 1009 states and 1291 transitions. [2019-10-15 00:21:53,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 00:21:53,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1291 transitions. [2019-10-15 00:21:53,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-15 00:21:53,432 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:53,433 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:53,433 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:53,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:53,434 INFO L82 PathProgramCache]: Analyzing trace with hash 176798915, now seen corresponding path program 1 times [2019-10-15 00:21:53,434 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:53,434 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311404578] [2019-10-15 00:21:53,434 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:53,434 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:53,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:53,760 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 00:21:53,761 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311404578] [2019-10-15 00:21:53,761 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:53,761 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:21:53,762 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935483880] [2019-10-15 00:21:53,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:21:53,763 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:53,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:21:53,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:21:53,763 INFO L87 Difference]: Start difference. First operand 1009 states and 1291 transitions. Second operand 6 states. [2019-10-15 00:21:56,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:56,384 INFO L93 Difference]: Finished difference Result 2035 states and 2605 transitions. [2019-10-15 00:21:56,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 00:21:56,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 206 [2019-10-15 00:21:56,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:56,391 INFO L225 Difference]: With dead ends: 2035 [2019-10-15 00:21:56,392 INFO L226 Difference]: Without dead ends: 1001 [2019-10-15 00:21:56,395 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:21:56,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2019-10-15 00:21:56,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 984. [2019-10-15 00:21:56,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 984 states. [2019-10-15 00:21:56,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1249 transitions. [2019-10-15 00:21:56,443 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1249 transitions. Word has length 206 [2019-10-15 00:21:56,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:56,444 INFO L462 AbstractCegarLoop]: Abstraction has 984 states and 1249 transitions. [2019-10-15 00:21:56,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:21:56,444 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1249 transitions. [2019-10-15 00:21:56,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-15 00:21:56,450 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:56,450 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:56,451 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:56,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:56,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1292493545, now seen corresponding path program 1 times [2019-10-15 00:21:56,451 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:56,451 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162243957] [2019-10-15 00:21:56,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:56,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:56,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:56,548 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 00:21:56,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1443683775] [2019-10-15 00:21:56,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:21:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:58,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 4210 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 00:21:58,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 00:21:58,099 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-15 00:21:58,100 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 00:21:58,103 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:21:58,103 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 00:21:58,104 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-10-15 00:21:58,165 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2019-10-15 00:21:58,166 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 00:21:58,168 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:21:58,169 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 00:21:58,169 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2019-10-15 00:21:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2019-10-15 00:21:58,239 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 00:21:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2019-10-15 00:21:58,414 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162243957] [2019-10-15 00:21:58,414 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 00:21:58,414 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443683775] [2019-10-15 00:21:58,415 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:58,415 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2019-10-15 00:21:58,415 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593256259] [2019-10-15 00:21:58,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:21:58,416 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:58,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:21:58,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:21:58,417 INFO L87 Difference]: Start difference. First operand 984 states and 1249 transitions. Second operand 5 states.