/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 13:45:55,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 13:45:55,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 13:45:55,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 13:45:55,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 13:45:55,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 13:45:55,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 13:45:55,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 13:45:55,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 13:45:55,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 13:45:55,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 13:45:55,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 13:45:55,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 13:45:55,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 13:45:55,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 13:45:55,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 13:45:55,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 13:45:55,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 13:45:55,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 13:45:55,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 13:45:55,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 13:45:55,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 13:45:55,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 13:45:55,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 13:45:55,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 13:45:55,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 13:45:55,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 13:45:55,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 13:45:55,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 13:45:55,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 13:45:55,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 13:45:55,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 13:45:55,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 13:45:55,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 13:45:55,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 13:45:55,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 13:45:55,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 13:45:55,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 13:45:55,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 13:45:55,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 13:45:55,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 13:45:55,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-27 13:45:55,783 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 13:45:55,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 13:45:55,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 13:45:55,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 13:45:55,788 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 13:45:55,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 13:45:55,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 13:45:55,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 13:45:55,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 13:45:55,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 13:45:55,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 13:45:55,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 13:45:55,791 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 13:45:55,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 13:45:55,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 13:45:55,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 13:45:55,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 13:45:55,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 13:45:55,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 13:45:55,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 13:45:55,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 13:45:55,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 13:45:55,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 13:45:55,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 13:45:55,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 13:45:55,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 13:45:55,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 13:45:55,794 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 13:45:56,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 13:45:56,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 13:45:56,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 13:45:56,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 13:45:56,292 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 13:45:56,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2020-10-27 13:45:56,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f14c7a47f/c0ffa04c54384d1eb0e93d9e7ee9f28e/FLAGe73c702e3 [2020-10-27 13:45:57,343 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 13:45:57,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2020-10-27 13:45:57,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f14c7a47f/c0ffa04c54384d1eb0e93d9e7ee9f28e/FLAGe73c702e3 [2020-10-27 13:45:57,811 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f14c7a47f/c0ffa04c54384d1eb0e93d9e7ee9f28e [2020-10-27 13:45:57,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 13:45:57,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 13:45:57,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 13:45:57,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 13:45:57,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 13:45:57,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:45:57" (1/1) ... [2020-10-27 13:45:57,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29673859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:45:57, skipping insertion in model container [2020-10-27 13:45:57,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:45:57" (1/1) ... [2020-10-27 13:45:57,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 13:45:57,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 13:45:58,499 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3507] [2020-10-27 13:45:58,500 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name readpages at C: (*readpages)(struct file___0 *filp , struct address_space___0 *mapping , struct list_head *pages , unsigned int nr_pages ) [3509-3510] [2020-10-27 13:45:58,500 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name write_begin at C: (*write_begin)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int flags , struct page **pagep , void **fsdata ) [3511-3513] [2020-10-27 13:45:58,501 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name write_end at C: (*write_end)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int copied , struct page *page , void *fsdata ) [3514-3515] [2020-10-27 13:45:58,501 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3516] [2020-10-27 13:45:58,502 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name get_xip_mem at C: (*get_xip_mem)(struct address_space___0 * , unsigned long , int , void ** , unsigned long * ) [3522-3523] [2020-10-27 13:45:58,502 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3524] [2020-10-27 13:45:58,503 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3527] [2020-10-27 13:45:58,515 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3940] [2020-10-27 13:45:58,516 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3941] [2020-10-27 13:45:58,517 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3942] [2020-10-27 13:45:58,518 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3943] [2020-10-27 13:45:58,518 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3944] [2020-10-27 13:45:58,519 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3945] [2020-10-27 13:45:59,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 13:45:59,402 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 13:45:59,570 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3507] [2020-10-27 13:45:59,570 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name readpages at C: (*readpages)(struct file___0 *filp , struct address_space___0 *mapping , struct list_head *pages , unsigned int nr_pages ) [3509-3510] [2020-10-27 13:45:59,571 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name write_begin at C: (*write_begin)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int flags , struct page **pagep , void **fsdata ) [3511-3513] [2020-10-27 13:45:59,572 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name write_end at C: (*write_end)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int copied , struct page *page , void *fsdata ) [3514-3515] [2020-10-27 13:45:59,574 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3516] [2020-10-27 13:45:59,574 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name get_xip_mem at C: (*get_xip_mem)(struct address_space___0 * , unsigned long , int , void ** , unsigned long * ) [3522-3523] [2020-10-27 13:45:59,574 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3524] [2020-10-27 13:45:59,575 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3527] [2020-10-27 13:45:59,584 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3940] [2020-10-27 13:45:59,584 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3941] [2020-10-27 13:45:59,584 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3942] [2020-10-27 13:45:59,585 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3943] [2020-10-27 13:45:59,586 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3944] [2020-10-27 13:45:59,586 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3945] [2020-10-27 13:45:59,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 13:45:59,963 INFO L208 MainTranslator]: Completed translation [2020-10-27 13:45:59,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:45:59 WrapperNode [2020-10-27 13:45:59,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 13:45:59,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 13:45:59,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 13:45:59,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 13:45:59,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:45:59" (1/1) ... [2020-10-27 13:45:59,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:45:59" (1/1) ... [2020-10-27 13:46:00,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:45:59" (1/1) ... [2020-10-27 13:46:00,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:45:59" (1/1) ... [2020-10-27 13:46:00,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:45:59" (1/1) ... [2020-10-27 13:46:00,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:45:59" (1/1) ... [2020-10-27 13:46:00,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:45:59" (1/1) ... [2020-10-27 13:46:00,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 13:46:00,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 13:46:00,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 13:46:00,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 13:46:00,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:45:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 13:46:00,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 13:46:00,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 13:46:00,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-27 13:46:00,331 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 13:46:00,332 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2020-10-27 13:46:00,332 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2020-10-27 13:46:00,332 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2020-10-27 13:46:00,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_3 [2020-10-27 13:46:00,332 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2020-10-27 13:46:00,332 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2020-10-27 13:46:00,332 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2020-10-27 13:46:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2020-10-27 13:46:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-27 13:46:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2020-10-27 13:46:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-27 13:46:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-27 13:46:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 13:46:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 13:46:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-27 13:46:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-27 13:46:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-27 13:46:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 13:46:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-27 13:46:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-27 13:46:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-27 13:46:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-27 13:46:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2020-10-27 13:46:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2020-10-27 13:46:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2020-10-27 13:46:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2020-10-27 13:46:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-27 13:46:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2020-10-27 13:46:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-27 13:46:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2020-10-27 13:46:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2020-10-27 13:46:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2020-10-27 13:46:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_startup [2020-10-27 13:46:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_release [2020-10-27 13:46:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init_termios [2020-10-27 13:46:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_open [2020-10-27 13:46:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_close [2020-10-27 13:46:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_read_int_callback [2020-10-27 13:46:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_callback [2020-10-27 13:46:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write [2020-10-27 13:46:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_room [2020-10-27 13:46:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmget [2020-10-27 13:46:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmset [2020-10-27 13:46:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_set_termios [2020-10-27 13:46:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_ioctl [2020-10-27 13:46:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init [2020-10-27 13:46:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_exit [2020-10-27 13:46:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2020-10-27 13:46:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2020-10-27 13:46:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 13:46:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2020-10-27 13:46:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2020-10-27 13:46:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_5 [2020-10-27 13:46:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_tty_get_6 [2020-10-27 13:46:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_flip_buffer_push_7 [2020-10-27 13:46:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_get_baud_rate_8 [2020-10-27 13:46:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_encode_baud_rate_9 [2020-10-27 13:46:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_10 [2020-10-27 13:46:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-27 13:46:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 13:46:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2020-10-27 13:46:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2020-10-27 13:46:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2020-10-27 13:46:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2020-10-27 13:46:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2020-10-27 13:46:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-27 13:46:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2020-10-27 13:46:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-27 13:46:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 13:46:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2020-10-27 13:46:00,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-10-27 13:46:00,342 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2020-10-27 13:46:00,342 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-10-27 13:46:00,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-27 13:46:00,342 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2020-10-27 13:46:00,342 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2020-10-27 13:46:00,342 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2020-10-27 13:46:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2020-10-27 13:46:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2020-10-27 13:46:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2020-10-27 13:46:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-27 13:46:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-27 13:46:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-27 13:46:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-27 13:46:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-27 13:46:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2020-10-27 13:46:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-27 13:46:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2020-10-27 13:46:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2020-10-27 13:46:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2020-10-27 13:46:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2020-10-27 13:46:00,345 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-10-27 13:46:00,345 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 13:46:00,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-27 13:46:00,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-27 13:46:00,345 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 13:46:00,345 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 13:46:00,345 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 13:46:00,346 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 13:46:00,346 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 13:46:00,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 13:46:00,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-27 13:46:00,346 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-27 13:46:00,346 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2020-10-27 13:46:00,347 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2020-10-27 13:46:00,347 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-10-27 13:46:00,347 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2020-10-27 13:46:00,347 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2020-10-27 13:46:00,347 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2020-10-27 13:46:00,347 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2020-10-27 13:46:00,347 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2020-10-27 13:46:00,348 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2020-10-27 13:46:00,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_flip_buffer_push_7 [2020-10-27 13:46:00,348 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2020-10-27 13:46:00,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_get_baud_rate_8 [2020-10-27 13:46:00,348 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2020-10-27 13:46:00,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_encode_baud_rate_9 [2020-10-27 13:46:00,349 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2020-10-27 13:46:00,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_tty_get_6 [2020-10-27 13:46:00,349 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2020-10-27 13:46:00,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2020-10-27 13:46:00,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_3 [2020-10-27 13:46:00,349 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2020-10-27 13:46:00,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2020-10-27 13:46:00,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2020-10-27 13:46:00,350 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 13:46:00,350 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2020-10-27 13:46:00,350 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2020-10-27 13:46:00,350 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-27 13:46:00,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 13:46:00,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 13:46:00,350 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2020-10-27 13:46:00,351 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2020-10-27 13:46:00,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 13:46:00,351 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-27 13:46:00,351 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-10-27 13:46:00,351 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2020-10-27 13:46:00,351 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-27 13:46:00,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-27 13:46:00,351 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-27 13:46:00,352 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 13:46:00,352 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 13:46:00,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 13:46:00,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-27 13:46:00,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 13:46:00,352 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 13:46:00,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 13:46:00,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-27 13:46:00,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-27 13:46:00,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-27 13:46:00,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 13:46:00,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-27 13:46:00,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-27 13:46:00,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2020-10-27 13:46:00,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2020-10-27 13:46:00,353 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-27 13:46:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2020-10-27 13:46:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2020-10-27 13:46:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2020-10-27 13:46:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2020-10-27 13:46:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-27 13:46:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-27 13:46:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2020-10-27 13:46:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-27 13:46:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_5 [2020-10-27 13:46:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-27 13:46:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-27 13:46:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_10 [2020-10-27 13:46:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2020-10-27 13:46:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 13:46:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 13:46:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-27 13:46:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-27 13:46:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-10-27 13:46:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-27 13:46:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2020-10-27 13:46:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-27 13:46:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-27 13:46:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2020-10-27 13:46:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2020-10-27 13:46:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2020-10-27 13:46:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2020-10-27 13:46:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2020-10-27 13:46:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2020-10-27 13:46:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2020-10-27 13:46:00,358 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_startup [2020-10-27 13:46:00,358 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_release [2020-10-27 13:46:00,358 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_open [2020-10-27 13:46:00,358 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_close [2020-10-27 13:46:00,358 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write [2020-10-27 13:46:00,358 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_room [2020-10-27 13:46:00,358 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_ioctl [2020-10-27 13:46:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmget [2020-10-27 13:46:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmset [2020-10-27 13:46:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_read_int_callback [2020-10-27 13:46:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_callback [2020-10-27 13:46:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_set_termios [2020-10-27 13:46:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init_termios [2020-10-27 13:46:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-27 13:46:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-27 13:46:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init [2020-10-27 13:46:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_exit [2020-10-27 13:46:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-10-27 13:46:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2020-10-27 13:46:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 13:46:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 13:46:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 13:46:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-27 13:46:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2020-10-27 13:46:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 13:46:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 13:46:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 13:46:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 13:46:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 13:46:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 13:46:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-27 13:46:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-27 13:46:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-27 13:46:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-27 13:46:01,410 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-27 13:46:05,392 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-27 13:46:08,307 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 13:46:08,308 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 13:46:08,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:46:08 BoogieIcfgContainer [2020-10-27 13:46:08,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 13:46:08,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 13:46:08,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 13:46:08,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 13:46:08,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:45:57" (1/3) ... [2020-10-27 13:46:08,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a939cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:46:08, skipping insertion in model container [2020-10-27 13:46:08,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:45:59" (2/3) ... [2020-10-27 13:46:08,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a939cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:46:08, skipping insertion in model container [2020-10-27 13:46:08,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:46:08" (3/3) ... [2020-10-27 13:46:08,321 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2020-10-27 13:46:08,335 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 13:46:08,341 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 13:46:08,356 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 13:46:08,390 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 13:46:08,391 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 13:46:08,391 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 13:46:08,391 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 13:46:08,391 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 13:46:08,391 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 13:46:08,392 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 13:46:08,392 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 13:46:08,436 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states. [2020-10-27 13:46:08,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-27 13:46:08,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:46:08,460 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2020-10-27 13:46:08,461 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:46:08,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:46:08,467 INFO L82 PathProgramCache]: Analyzing trace with hash 2050874193, now seen corresponding path program 1 times [2020-10-27 13:46:08,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:46:08,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436882056] [2020-10-27 13:46:08,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:46:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:46:09,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:09,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:10,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:14,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:46:14,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-27 13:46:14,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 13:46:14,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5519 [2020-10-27 13:46:14,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:46:14,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 13:46:14,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-27 13:46:14,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 13:46:14,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 13:46:17,999 WARN L193 SmtUtils]: Spent 3.19 s on a formula simplification that was a NOOP. DAG size: 730 [2020-10-27 13:46:18,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:46:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:46:18,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:18,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:46:18,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:46:18,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:46:18,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-10-27 13:46:18,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:46:18,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:46:18,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:46:18,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:46:18,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:46:18,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:46:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:46:18,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:18,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:46:18,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:46:18,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:46:18,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:46:18,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:46:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:46:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:46:18,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:46:18,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:46:18,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 13:46:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:46:18,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:18,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:46:18,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:46:18,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:46:18,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 13:46:18,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:46:18,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:46:18,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:46:18,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:46:18,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:46:18,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 13:46:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:46:18,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:18,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:46:18,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:46:18,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:46:18,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:46:18,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:46:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:46:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:46:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:46:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:46:18,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 13:46:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:46:18,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:18,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:46:18,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:46:18,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:46:18,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 13:46:18,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:46:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:46:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:46:18,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:46:18,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 13:46:18,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 13:46:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:46:18,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:18,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:46:18,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 13:46:18,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:46:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 13:46:18,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:46:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 13:46:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 13:46:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 13:46:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:46:18,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:46:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:46:18,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:18,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:46:18,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:46:18,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:46:18,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 13:46:18,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:46:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 13:46:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:46:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 13:46:18,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:46:18,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 13:46:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:46:18,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:18,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:46:18,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:46:18,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:46:18,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 13:46:18,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:46:18,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:46:18,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-27 13:46:18,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:46:18,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:46:18,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:46:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:46:18,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:18,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:46:18,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 13:46:18,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:46:18,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 13:46:18,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:46:18,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:46:18,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:46:18,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:46:18,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:46:19,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:46:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:46:19,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:46:19,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:46:19,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:46:19,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:46:19,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:46:19,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:46:19,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:46:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:46:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:46:19,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:46:19,071 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 13:46:19,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436882056] [2020-10-27 13:46:19,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:46:19,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 13:46:19,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208522270] [2020-10-27 13:46:19,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 13:46:19,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:46:19,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 13:46:19,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 13:46:19,097 INFO L87 Difference]: Start difference. First operand 865 states. Second operand 9 states. [2020-10-27 13:46:22,676 WARN L193 SmtUtils]: Spent 3.51 s on a formula simplification that was a NOOP. DAG size: 733 [2020-10-27 13:46:34,574 WARN L193 SmtUtils]: Spent 3.50 s on a formula simplification that was a NOOP. DAG size: 736 [2020-10-27 13:46:38,311 WARN L193 SmtUtils]: Spent 3.45 s on a formula simplification that was a NOOP. DAG size: 733 [2020-10-27 13:46:42,937 WARN L193 SmtUtils]: Spent 3.57 s on a formula simplification that was a NOOP. DAG size: 740 [2020-10-27 13:46:46,682 WARN L193 SmtUtils]: Spent 3.59 s on a formula simplification that was a NOOP. DAG size: 740 [2020-10-27 13:46:53,354 WARN L193 SmtUtils]: Spent 3.49 s on a formula simplification that was a NOOP. DAG size: 738 [2020-10-27 13:47:24,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:47:24,465 INFO L93 Difference]: Finished difference Result 1952 states and 2806 transitions. [2020-10-27 13:47:24,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 13:47:24,467 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-10-27 13:47:24,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:47:24,498 INFO L225 Difference]: With dead ends: 1952 [2020-10-27 13:47:24,498 INFO L226 Difference]: Without dead ends: 1066 [2020-10-27 13:47:24,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-10-27 13:47:24,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-27 13:47:24,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 745. [2020-10-27 13:47:24,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-10-27 13:47:24,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 996 transitions. [2020-10-27 13:47:24,864 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 996 transitions. Word has length 83 [2020-10-27 13:47:24,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:47:24,864 INFO L481 AbstractCegarLoop]: Abstraction has 745 states and 996 transitions. [2020-10-27 13:47:24,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 13:47:24,865 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 996 transitions. [2020-10-27 13:47:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-27 13:47:24,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:47:24,872 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2020-10-27 13:47:24,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 13:47:24,873 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:47:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:47:24,873 INFO L82 PathProgramCache]: Analyzing trace with hash 302576838, now seen corresponding path program 1 times [2020-10-27 13:47:24,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:47:24,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610640840] [2020-10-27 13:47:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:47:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:25,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:25,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:27,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:30,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:30,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:30,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 13:47:30,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 13:47:30,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5619 [2020-10-27 13:47:30,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:47:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-27 13:47:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 13:47:30,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:34,400 WARN L193 SmtUtils]: Spent 3.45 s on a formula simplification that was a NOOP. DAG size: 730 [2020-10-27 13:47:34,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:47:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:34,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:34,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:34,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:47:34,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:34,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-27 13:47:34,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:34,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:34,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:34,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:34,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:35,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:47:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:35,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:35,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:35,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:47:35,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:35,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:47:35,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:35,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:35,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:35,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 13:47:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:35,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:35,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:35,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:47:35,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:35,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:47:35,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:35,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:35,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:35,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:35,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:35,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 13:47:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:35,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:35,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:35,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:47:35,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:35,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:47:35,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:35,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:35,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:35,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:35,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:35,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 13:47:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:35,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:35,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:35,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:47:35,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:35,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:47:35,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:35,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:35,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:35,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:35,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:35,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 13:47:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:35,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:35,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:35,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:35,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 13:47:35,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:47:35,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-27 13:47:35,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:35,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 13:47:35,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:35,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 13:47:35,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:35,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:47:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:35,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:35,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:35,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 13:47:35,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:35,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-27 13:47:35,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 13:47:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:35,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 13:47:35,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:35,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 13:47:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:35,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:35,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:35,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:47:35,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:35,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 13:47:35,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:35,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 13:47:35,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:35,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 13:47:35,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:35,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 13:47:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:35,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:35,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:35,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:47:35,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:35,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 13:47:35,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:47:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 13:47:35,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:35,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:47:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:35,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:35,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:35,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 13:47:35,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:35,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 13:47:35,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:35,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:35,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:35,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:35,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:35,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:47:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:35,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:35,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:35,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:47:35,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:35,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:47:35,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:35,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 13:47:35,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610640840] [2020-10-27 13:47:35,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:47:35,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 13:47:35,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064273265] [2020-10-27 13:47:35,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 13:47:35,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:47:35,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 13:47:35,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-27 13:47:35,991 INFO L87 Difference]: Start difference. First operand 745 states and 996 transitions. Second operand 12 states. [2020-10-27 13:47:39,570 WARN L193 SmtUtils]: Spent 3.51 s on a formula simplification that was a NOOP. DAG size: 733 [2020-10-27 13:47:51,688 WARN L193 SmtUtils]: Spent 3.54 s on a formula simplification that was a NOOP. DAG size: 736 [2020-10-27 13:47:55,399 WARN L193 SmtUtils]: Spent 3.64 s on a formula simplification that was a NOOP. DAG size: 739 [2020-10-27 13:48:00,057 WARN L193 SmtUtils]: Spent 3.77 s on a formula simplification that was a NOOP. DAG size: 739 [2020-10-27 13:48:05,140 WARN L193 SmtUtils]: Spent 3.76 s on a formula simplification that was a NOOP. DAG size: 736 [2020-10-27 13:48:10,016 WARN L193 SmtUtils]: Spent 3.70 s on a formula simplification that was a NOOP. DAG size: 742 [2020-10-27 13:48:14,224 WARN L193 SmtUtils]: Spent 3.87 s on a formula simplification that was a NOOP. DAG size: 745 [2020-10-27 13:48:51,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:48:51,922 INFO L93 Difference]: Finished difference Result 2017 states and 2893 transitions. [2020-10-27 13:48:51,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 13:48:51,923 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2020-10-27 13:48:51,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:48:51,941 INFO L225 Difference]: With dead ends: 2017 [2020-10-27 13:48:51,942 INFO L226 Difference]: Without dead ends: 2012 [2020-10-27 13:48:51,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2020-10-27 13:48:51,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2020-10-27 13:48:52,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 1396. [2020-10-27 13:48:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1396 states. [2020-10-27 13:48:52,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1889 transitions. [2020-10-27 13:48:52,461 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1889 transitions. Word has length 91 [2020-10-27 13:48:52,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:48:52,462 INFO L481 AbstractCegarLoop]: Abstraction has 1396 states and 1889 transitions. [2020-10-27 13:48:52,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 13:48:52,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1889 transitions. [2020-10-27 13:48:52,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 13:48:52,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:48:52,466 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2020-10-27 13:48:52,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 13:48:52,467 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:48:52,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:48:52,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1263851345, now seen corresponding path program 1 times [2020-10-27 13:48:52,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:48:52,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367220059] [2020-10-27 13:48:52,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:48:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:52,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:52,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:54,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:57,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:57,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 13:48:57,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 13:48:57,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5157 [2020-10-27 13:48:57,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:57,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:48:57,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 13:48:57,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 13:48:57,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:01,492 WARN L193 SmtUtils]: Spent 3.61 s on a formula simplification that was a NOOP. DAG size: 730 [2020-10-27 13:49:01,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:49:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:01,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:02,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:02,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:49:02,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:49:02,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1217 [2020-10-27 13:49:02,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:02,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:49:02,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:49:02,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 13:49:02,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:02,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:49:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:02,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:02,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:02,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:49:02,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:49:02,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 13:49:02,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:49:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:49:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 13:49:02,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:02,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 13:49:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:02,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:02,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:02,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:49:02,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:49:02,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 13:49:02,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:02,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:49:02,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:49:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 13:49:02,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:02,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 13:49:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:02,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:02,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:02,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:49:02,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:49:02,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 13:49:02,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:02,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:49:02,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:49:02,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 13:49:02,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:02,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 13:49:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:02,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:02,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:02,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:49:02,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:49:02,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 13:49:02,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:02,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:49:02,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:49:02,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 13:49:02,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:03,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 13:49:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:03,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:03,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:03,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 13:49:03,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:49:03,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 13:49:03,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:49:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:49:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 13:49:03,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:03,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:49:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:03,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:03,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:03,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 13:49:03,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:49:03,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 13:49:03,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:03,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:49:03,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:49:03,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:49:03,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:03,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 13:49:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:03,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:03,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:03,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:49:03,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:49:03,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:49:03,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:03,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:49:03,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:49:03,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:49:03,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:03,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 13:49:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:03,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:03,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:03,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 13:49:03,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:49:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 13:49:03,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:49:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 13:49:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:49:03,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:03,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:49:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:03,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:03,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:03,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 13:49:03,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:49:03,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 13:49:03,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:49:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:49:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:49:03,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:03,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:49:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:03,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:03,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:03,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:49:03,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:49:03,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:49:03,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:03,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:49:03,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:49:03,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:49:03,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:03,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 13:49:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:03,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:03,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:03,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:49:03,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:49:03,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:49:03,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:03,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:49:03,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:49:03,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:49:03,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:49:03,288 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-27 13:49:03,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367220059] [2020-10-27 13:49:03,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 13:49:03,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 13:49:03,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237164610] [2020-10-27 13:49:03,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 13:49:03,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:49:03,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 13:49:03,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-27 13:49:03,293 INFO L87 Difference]: Start difference. First operand 1396 states and 1889 transitions. Second operand 8 states. [2020-10-27 13:49:06,940 WARN L193 SmtUtils]: Spent 3.62 s on a formula simplification that was a NOOP. DAG size: 733 [2020-10-27 13:49:14,996 WARN L193 SmtUtils]: Spent 3.57 s on a formula simplification that was a NOOP. DAG size: 735 [2020-10-27 13:49:18,758 WARN L193 SmtUtils]: Spent 3.57 s on a formula simplification that was a NOOP. DAG size: 732 [2020-10-27 13:49:41,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:49:41,115 INFO L93 Difference]: Finished difference Result 3361 states and 4761 transitions. [2020-10-27 13:49:41,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 13:49:41,116 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-27 13:49:41,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:49:41,129 INFO L225 Difference]: With dead ends: 3361 [2020-10-27 13:49:41,130 INFO L226 Difference]: Without dead ends: 2007 [2020-10-27 13:49:41,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-10-27 13:49:41,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2020-10-27 13:49:41,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 1396. [2020-10-27 13:49:41,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1396 states. [2020-10-27 13:49:41,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1834 transitions. [2020-10-27 13:49:41,709 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1834 transitions. Word has length 89 [2020-10-27 13:49:41,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:49:41,709 INFO L481 AbstractCegarLoop]: Abstraction has 1396 states and 1834 transitions. [2020-10-27 13:49:41,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 13:49:41,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1834 transitions. [2020-10-27 13:49:41,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 13:49:41,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:49:41,713 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2020-10-27 13:49:41,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 13:49:41,714 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:49:41,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:49:41,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1336237903, now seen corresponding path program 1 times [2020-10-27 13:49:41,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:49:41,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654583587] [2020-10-27 13:49:41,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:49:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:49:41,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:42,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:49:44,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:49:44,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 13:49:44,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:49:44,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2558 [2020-10-27 13:49:44,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:49:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:49:44,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-27 13:49:44,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 13:49:44,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0