java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:11:50,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:11:50,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:11:50,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:11:50,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:11:50,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:11:50,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:11:50,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:11:50,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:11:50,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:11:50,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:11:50,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:11:50,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:11:50,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:11:50,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:11:50,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:11:50,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:11:50,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:11:50,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:11:50,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:11:50,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:11:50,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:11:50,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:11:50,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:11:50,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:11:50,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:11:50,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:11:50,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:11:50,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:11:50,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:11:50,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:11:50,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:11:50,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:11:50,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:11:50,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:11:50,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:11:50,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:11:50,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:11:50,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:11:50,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:11:50,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:11:50,172 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:11:50,206 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:11:50,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:11:50,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:11:50,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:11:50,211 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:11:50,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:11:50,212 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:11:50,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:11:50,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:11:50,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:11:50,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:11:50,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:11:50,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:11:50,216 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:11:50,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:11:50,216 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:11:50,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:11:50,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:11:50,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:11:50,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:11:50,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:11:50,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:11:50,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:11:50,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:11:50,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:11:50,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:11:50,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:11:50,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:11:50,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:11:50,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:11:50,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:11:50,551 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:11:50,552 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:11:50,553 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:11:50,554 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product22.cil.c [2019-10-15 01:11:50,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/210b77a69/2ecaf787c114495886bfe3e90f3aa809/FLAG68cd891a7 [2019-10-15 01:11:51,282 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:11:51,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product22.cil.c [2019-10-15 01:11:51,302 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/210b77a69/2ecaf787c114495886bfe3e90f3aa809/FLAG68cd891a7 [2019-10-15 01:11:51,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/210b77a69/2ecaf787c114495886bfe3e90f3aa809 [2019-10-15 01:11:51,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:11:51,462 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:11:51,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:11:51,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:11:51,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:11:51,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:11:51" (1/1) ... [2019-10-15 01:11:51,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6608a0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:51, skipping insertion in model container [2019-10-15 01:11:51,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:11:51" (1/1) ... [2019-10-15 01:11:51,481 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:11:51,550 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:11:52,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:11:52,298 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:11:52,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:11:52,498 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:11:52,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52 WrapperNode [2019-10-15 01:11:52,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:11:52,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:11:52,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:11:52,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:11:52,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:11:52,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:11:52,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:11:52,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:11:52,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:11:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:11:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:11:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:11:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:11:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:11:52,808 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:11:52,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:11:52,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:11:52,810 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:11:52,810 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:11:52,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:11:52,811 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:11:52,811 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:11:52,813 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:11:52,813 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:11:52,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:11:52,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:11:52,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:11:52,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:11:52,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:11:52,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:11:52,818 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:11:52,818 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:11:52,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:11:52,819 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:11:52,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:11:52,820 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:11:52,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:11:52,820 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:11:52,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:11:52,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:11:52,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:11:52,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:11:52,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:11:52,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:11:52,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:11:52,822 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:11:52,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:11:52,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:11:52,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:11:52,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:11:52,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:11:52,823 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:11:52,824 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:11:52,824 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:11:52,824 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:11:52,824 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:11:52,825 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-15 01:11:52,825 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:11:52,825 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:11:52,825 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:11:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:11:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:11:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:11:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:11:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:11:52,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:11:52,827 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:11:52,827 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:11:52,828 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:11:52,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:11:52,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:11:52,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:11:52,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:11:52,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:11:52,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:11:52,830 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:11:52,830 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:11:52,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:11:52,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:11:52,831 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:11:52,831 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:11:52,831 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:11:52,832 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:11:52,833 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:11:52,833 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:11:52,833 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:11:52,833 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:11:52,833 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:11:52,834 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:11:52,834 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:11:52,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:11:52,835 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:11:52,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:11:52,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:11:52,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:11:52,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:11:52,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:11:52,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:11:52,839 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:11:52,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:11:52,839 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:11:52,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:11:52,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:11:52,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:11:52,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:11:52,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:11:52,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:11:52,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:11:52,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:11:52,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:11:52,841 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:11:52,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:11:52,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:11:52,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:11:52,842 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:11:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:11:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:11:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:11:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:11:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:11:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:11:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:11:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:11:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:11:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:11:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:11:52,845 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:11:52,845 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:11:52,846 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:11:52,846 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:11:52,846 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:11:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:11:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:11:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:11:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:11:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:11:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:11:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:11:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:11:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:11:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:11:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:11:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:11:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:11:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:11:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:11:52,860 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:11:52,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:11:52,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:11:52,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:11:52,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:11:52,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:11:52,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:11:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:11:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:11:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:11:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:11:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:11:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:11:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:11:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:11:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:11:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:11:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:11:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:11:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:11:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:11:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:11:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:11:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:11:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:11:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:11:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:11:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:11:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:11:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:11:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:11:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:11:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:11:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:11:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:11:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:11:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:11:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:11:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:11:52,879 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:11:52,879 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:11:52,879 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:11:52,879 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:11:52,879 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:11:52,879 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:11:52,879 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:11:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:11:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:11:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:11:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:11:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:11:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:11:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-15 01:11:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:11:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:11:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:11:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:11:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:11:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:11:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:11:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:11:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:11:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:11:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:11:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:11:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:11:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:11:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:11:52,884 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:11:52,884 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:11:52,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:11:52,884 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:11:52,884 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:11:52,884 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:11:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:11:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:11:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:11:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:11:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:11:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:11:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:11:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:11:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:11:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:11:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:11:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:11:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:11:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:11:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:11:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:11:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:11:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:11:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:11:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:11:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:11:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:11:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:11:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:11:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:11:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:11:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:11:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:11:55,211 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:11:55,212 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:11:55,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:11:55 BoogieIcfgContainer [2019-10-15 01:11:55,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:11:55,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:11:55,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:11:55,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:11:55,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:11:51" (1/3) ... [2019-10-15 01:11:55,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3367469b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:11:55, skipping insertion in model container [2019-10-15 01:11:55,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (2/3) ... [2019-10-15 01:11:55,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3367469b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:11:55, skipping insertion in model container [2019-10-15 01:11:55,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:11:55" (3/3) ... [2019-10-15 01:11:55,224 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product22.cil.c [2019-10-15 01:11:55,235 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:11:55,248 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:11:55,261 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:11:55,294 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:11:55,294 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:11:55,295 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:11:55,295 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:11:55,295 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:11:55,295 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:11:55,295 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:11:55,295 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:11:55,340 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states. [2019-10-15 01:11:55,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:11:55,381 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:55,383 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:55,390 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:55,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:55,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1106336923, now seen corresponding path program 1 times [2019-10-15 01:11:55,410 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:55,410 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130340276] [2019-10-15 01:11:55,414 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:55,414 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:55,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:56,195 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:11:56,196 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130340276] [2019-10-15 01:11:56,197 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:56,197 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:11:56,198 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591226198] [2019-10-15 01:11:56,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:11:56,207 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:56,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:11:56,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:11:56,227 INFO L87 Difference]: Start difference. First operand 505 states. Second operand 2 states. [2019-10-15 01:11:56,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:56,327 INFO L93 Difference]: Finished difference Result 741 states and 976 transitions. [2019-10-15 01:11:56,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:11:56,329 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 200 [2019-10-15 01:11:56,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:56,361 INFO L225 Difference]: With dead ends: 741 [2019-10-15 01:11:56,362 INFO L226 Difference]: Without dead ends: 482 [2019-10-15 01:11:56,373 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:11:56,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2019-10-15 01:11:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2019-10-15 01:11:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2019-10-15 01:11:56,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 638 transitions. [2019-10-15 01:11:56,499 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 638 transitions. Word has length 200 [2019-10-15 01:11:56,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:56,502 INFO L462 AbstractCegarLoop]: Abstraction has 482 states and 638 transitions. [2019-10-15 01:11:56,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:11:56,502 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 638 transitions. [2019-10-15 01:11:56,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:11:56,508 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:56,509 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:56,509 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:56,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:56,510 INFO L82 PathProgramCache]: Analyzing trace with hash -2011171209, now seen corresponding path program 1 times [2019-10-15 01:11:56,510 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:56,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902292334] [2019-10-15 01:11:56,510 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:56,511 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:56,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:56,793 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:11:56,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902292334] [2019-10-15 01:11:56,794 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:56,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:11:56,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675571235] [2019-10-15 01:11:56,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:11:56,797 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:56,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:11:56,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:11:56,797 INFO L87 Difference]: Start difference. First operand 482 states and 638 transitions. Second operand 3 states. [2019-10-15 01:11:56,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:56,920 INFO L93 Difference]: Finished difference Result 724 states and 942 transitions. [2019-10-15 01:11:56,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:11:56,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-10-15 01:11:56,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:56,927 INFO L225 Difference]: With dead ends: 724 [2019-10-15 01:11:56,927 INFO L226 Difference]: Without dead ends: 485 [2019-10-15 01:11:56,930 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:11:56,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-10-15 01:11:56,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 484. [2019-10-15 01:11:56,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2019-10-15 01:11:56,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 640 transitions. [2019-10-15 01:11:56,974 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 640 transitions. Word has length 201 [2019-10-15 01:11:56,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:56,976 INFO L462 AbstractCegarLoop]: Abstraction has 484 states and 640 transitions. [2019-10-15 01:11:56,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:11:56,976 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 640 transitions. [2019-10-15 01:11:56,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:11:56,980 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:56,981 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:56,981 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:56,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:56,982 INFO L82 PathProgramCache]: Analyzing trace with hash 2082311285, now seen corresponding path program 1 times [2019-10-15 01:11:56,982 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:56,982 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32877177] [2019-10-15 01:11:56,982 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:56,982 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:56,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:11:57,133 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32877177] [2019-10-15 01:11:57,133 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:57,133 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:11:57,134 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490822840] [2019-10-15 01:11:57,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:11:57,135 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:57,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:11:57,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:11:57,136 INFO L87 Difference]: Start difference. First operand 484 states and 640 transitions. Second operand 3 states. [2019-10-15 01:11:57,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:57,169 INFO L93 Difference]: Finished difference Result 946 states and 1281 transitions. [2019-10-15 01:11:57,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:11:57,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2019-10-15 01:11:57,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:57,174 INFO L225 Difference]: With dead ends: 946 [2019-10-15 01:11:57,174 INFO L226 Difference]: Without dead ends: 527 [2019-10-15 01:11:57,179 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:11:57,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2019-10-15 01:11:57,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 526. [2019-10-15 01:11:57,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2019-10-15 01:11:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 712 transitions. [2019-10-15 01:11:57,207 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 712 transitions. Word has length 213 [2019-10-15 01:11:57,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:57,208 INFO L462 AbstractCegarLoop]: Abstraction has 526 states and 712 transitions. [2019-10-15 01:11:57,208 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:11:57,208 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 712 transitions. [2019-10-15 01:11:57,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-15 01:11:57,212 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:57,213 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:57,213 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:57,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:57,214 INFO L82 PathProgramCache]: Analyzing trace with hash -849255291, now seen corresponding path program 1 times [2019-10-15 01:11:57,214 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:57,214 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932472919] [2019-10-15 01:11:57,214 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:57,214 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:57,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:57,425 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:11:57,425 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932472919] [2019-10-15 01:11:57,426 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:57,426 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:11:57,426 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954327803] [2019-10-15 01:11:57,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:11:57,428 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:57,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:11:57,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:11:57,429 INFO L87 Difference]: Start difference. First operand 526 states and 712 transitions. Second operand 3 states. [2019-10-15 01:11:57,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:57,480 INFO L93 Difference]: Finished difference Result 1069 states and 1492 transitions. [2019-10-15 01:11:57,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:11:57,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2019-10-15 01:11:57,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:57,490 INFO L225 Difference]: With dead ends: 1069 [2019-10-15 01:11:57,490 INFO L226 Difference]: Without dead ends: 608 [2019-10-15 01:11:57,492 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:11:57,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-10-15 01:11:57,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 607. [2019-10-15 01:11:57,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2019-10-15 01:11:57,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 850 transitions. [2019-10-15 01:11:57,529 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 850 transitions. Word has length 214 [2019-10-15 01:11:57,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:57,530 INFO L462 AbstractCegarLoop]: Abstraction has 607 states and 850 transitions. [2019-10-15 01:11:57,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:11:57,530 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 850 transitions. [2019-10-15 01:11:57,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-15 01:11:57,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:57,535 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:57,536 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:57,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:57,536 INFO L82 PathProgramCache]: Analyzing trace with hash 716766844, now seen corresponding path program 1 times [2019-10-15 01:11:57,537 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:57,537 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610544090] [2019-10-15 01:11:57,537 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:57,537 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:57,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:57,944 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:11:57,944 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610544090] [2019-10-15 01:11:57,945 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:57,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:11:57,945 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515845026] [2019-10-15 01:11:57,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:11:57,947 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:57,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:11:57,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:11:57,948 INFO L87 Difference]: Start difference. First operand 607 states and 850 transitions. Second operand 19 states. [2019-10-15 01:12:02,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:02,773 INFO L93 Difference]: Finished difference Result 1925 states and 2678 transitions. [2019-10-15 01:12:02,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:12:02,774 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 217 [2019-10-15 01:12:02,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:02,797 INFO L225 Difference]: With dead ends: 1925 [2019-10-15 01:12:02,798 INFO L226 Difference]: Without dead ends: 1699 [2019-10-15 01:12:02,801 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:12:02,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2019-10-15 01:12:02,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1662. [2019-10-15 01:12:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2019-10-15 01:12:02,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2334 transitions. [2019-10-15 01:12:02,925 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2334 transitions. Word has length 217 [2019-10-15 01:12:02,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:02,926 INFO L462 AbstractCegarLoop]: Abstraction has 1662 states and 2334 transitions. [2019-10-15 01:12:02,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:12:02,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2334 transitions. [2019-10-15 01:12:02,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-15 01:12:02,934 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:02,934 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:02,934 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:02,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:02,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1614735209, now seen corresponding path program 1 times [2019-10-15 01:12:02,935 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:02,935 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272605449] [2019-10-15 01:12:02,935 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:02,935 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:02,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:03,207 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:03,207 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272605449] [2019-10-15 01:12:03,207 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:03,207 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:12:03,208 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310707329] [2019-10-15 01:12:03,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:12:03,209 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:03,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:12:03,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:03,210 INFO L87 Difference]: Start difference. First operand 1662 states and 2334 transitions. Second operand 15 states. [2019-10-15 01:12:06,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:06,558 INFO L93 Difference]: Finished difference Result 2719 states and 3748 transitions. [2019-10-15 01:12:06,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:12:06,559 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 218 [2019-10-15 01:12:06,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:06,570 INFO L225 Difference]: With dead ends: 2719 [2019-10-15 01:12:06,571 INFO L226 Difference]: Without dead ends: 1764 [2019-10-15 01:12:06,578 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:12:06,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2019-10-15 01:12:06,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1732. [2019-10-15 01:12:06,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1732 states. [2019-10-15 01:12:06,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2445 transitions. [2019-10-15 01:12:06,685 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2445 transitions. Word has length 218 [2019-10-15 01:12:06,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:06,686 INFO L462 AbstractCegarLoop]: Abstraction has 1732 states and 2445 transitions. [2019-10-15 01:12:06,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:12:06,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2445 transitions. [2019-10-15 01:12:06,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-15 01:12:06,695 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:06,695 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:06,696 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:06,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:06,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1276793998, now seen corresponding path program 1 times [2019-10-15 01:12:06,697 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:06,697 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917739839] [2019-10-15 01:12:06,697 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:06,697 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:06,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:06,948 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:12:06,948 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917739839] [2019-10-15 01:12:06,949 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:06,949 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 01:12:06,949 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379396922] [2019-10-15 01:12:06,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:12:06,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:06,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:12:06,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-10-15 01:12:06,951 INFO L87 Difference]: Start difference. First operand 1732 states and 2445 transitions. Second operand 14 states. [2019-10-15 01:12:07,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:07,286 INFO L93 Difference]: Finished difference Result 2859 states and 3965 transitions. [2019-10-15 01:12:07,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:12:07,287 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 218 [2019-10-15 01:12:07,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:07,299 INFO L225 Difference]: With dead ends: 2859 [2019-10-15 01:12:07,300 INFO L226 Difference]: Without dead ends: 1792 [2019-10-15 01:12:07,304 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:07,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2019-10-15 01:12:07,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1761. [2019-10-15 01:12:07,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1761 states. [2019-10-15 01:12:07,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 2476 transitions. [2019-10-15 01:12:07,409 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 2476 transitions. Word has length 218 [2019-10-15 01:12:07,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:07,410 INFO L462 AbstractCegarLoop]: Abstraction has 1761 states and 2476 transitions. [2019-10-15 01:12:07,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:12:07,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 2476 transitions. [2019-10-15 01:12:07,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-15 01:12:07,419 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:07,419 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:07,420 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:07,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:07,420 INFO L82 PathProgramCache]: Analyzing trace with hash -214845570, now seen corresponding path program 1 times [2019-10-15 01:12:07,421 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:07,421 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601031105] [2019-10-15 01:12:07,421 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:07,421 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:07,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:07,689 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:07,690 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601031105] [2019-10-15 01:12:07,690 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:07,690 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:12:07,691 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316921160] [2019-10-15 01:12:07,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:12:07,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:07,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:12:07,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:07,693 INFO L87 Difference]: Start difference. First operand 1761 states and 2476 transitions. Second operand 5 states. [2019-10-15 01:12:08,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:08,674 INFO L93 Difference]: Finished difference Result 4068 states and 5618 transitions. [2019-10-15 01:12:08,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:12:08,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 218 [2019-10-15 01:12:08,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:08,697 INFO L225 Difference]: With dead ends: 4068 [2019-10-15 01:12:08,697 INFO L226 Difference]: Without dead ends: 3570 [2019-10-15 01:12:08,701 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:12:08,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3570 states. [2019-10-15 01:12:08,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3570 to 3539. [2019-10-15 01:12:08,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3539 states. [2019-10-15 01:12:08,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3539 states to 3539 states and 4926 transitions. [2019-10-15 01:12:08,914 INFO L78 Accepts]: Start accepts. Automaton has 3539 states and 4926 transitions. Word has length 218 [2019-10-15 01:12:08,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:08,915 INFO L462 AbstractCegarLoop]: Abstraction has 3539 states and 4926 transitions. [2019-10-15 01:12:08,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:08,915 INFO L276 IsEmpty]: Start isEmpty. Operand 3539 states and 4926 transitions. [2019-10-15 01:12:08,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-15 01:12:08,930 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:08,931 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:08,931 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:08,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:08,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1639499967, now seen corresponding path program 1 times [2019-10-15 01:12:08,932 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:08,933 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169310240] [2019-10-15 01:12:08,933 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:08,933 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:08,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:09,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169310240] [2019-10-15 01:12:09,294 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:09,294 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 01:12:09,295 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041313841] [2019-10-15 01:12:09,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:12:09,296 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:09,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:12:09,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:12:09,297 INFO L87 Difference]: Start difference. First operand 3539 states and 4926 transitions. Second operand 13 states. [2019-10-15 01:12:12,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:12,257 INFO L93 Difference]: Finished difference Result 9510 states and 13147 transitions. [2019-10-15 01:12:12,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 01:12:12,257 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 218 [2019-10-15 01:12:12,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:12,313 INFO L225 Difference]: With dead ends: 9510 [2019-10-15 01:12:12,314 INFO L226 Difference]: Without dead ends: 7149 [2019-10-15 01:12:12,329 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:12:12,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7149 states. [2019-10-15 01:12:12,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7149 to 7104. [2019-10-15 01:12:12,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7104 states. [2019-10-15 01:12:12,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7104 states to 7104 states and 9877 transitions. [2019-10-15 01:12:12,776 INFO L78 Accepts]: Start accepts. Automaton has 7104 states and 9877 transitions. Word has length 218 [2019-10-15 01:12:12,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:12,777 INFO L462 AbstractCegarLoop]: Abstraction has 7104 states and 9877 transitions. [2019-10-15 01:12:12,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:12:12,777 INFO L276 IsEmpty]: Start isEmpty. Operand 7104 states and 9877 transitions. [2019-10-15 01:12:12,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-15 01:12:12,798 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:12,799 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:12,799 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:12,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:12,800 INFO L82 PathProgramCache]: Analyzing trace with hash -486187450, now seen corresponding path program 1 times [2019-10-15 01:12:12,800 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:12,800 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598477385] [2019-10-15 01:12:12,800 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:12,800 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:12,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:12,931 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:12,931 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598477385] [2019-10-15 01:12:12,931 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:12,932 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:12,932 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508579733] [2019-10-15 01:12:12,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:12,933 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:12,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:12,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:12,933 INFO L87 Difference]: Start difference. First operand 7104 states and 9877 transitions. Second operand 3 states. [2019-10-15 01:12:13,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:13,201 INFO L93 Difference]: Finished difference Result 15085 states and 21409 transitions. [2019-10-15 01:12:13,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:13,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2019-10-15 01:12:13,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:13,257 INFO L225 Difference]: With dead ends: 15085 [2019-10-15 01:12:13,257 INFO L226 Difference]: Without dead ends: 8046 [2019-10-15 01:12:13,286 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:13,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8046 states. [2019-10-15 01:12:13,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8046 to 8040. [2019-10-15 01:12:13,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8040 states. [2019-10-15 01:12:13,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8040 states to 8040 states and 11575 transitions. [2019-10-15 01:12:13,759 INFO L78 Accepts]: Start accepts. Automaton has 8040 states and 11575 transitions. Word has length 216 [2019-10-15 01:12:13,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:13,760 INFO L462 AbstractCegarLoop]: Abstraction has 8040 states and 11575 transitions. [2019-10-15 01:12:13,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:13,760 INFO L276 IsEmpty]: Start isEmpty. Operand 8040 states and 11575 transitions. [2019-10-15 01:12:13,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-10-15 01:12:13,786 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:13,786 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:13,787 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:13,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:13,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1217345233, now seen corresponding path program 1 times [2019-10-15 01:12:13,788 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:13,788 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801116430] [2019-10-15 01:12:13,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:13,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:13,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:13,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801116430] [2019-10-15 01:12:13,988 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:13,988 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:12:13,988 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621997847] [2019-10-15 01:12:13,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:12:13,989 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:13,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:12:13,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:12:13,990 INFO L87 Difference]: Start difference. First operand 8040 states and 11575 transitions. Second operand 11 states. [2019-10-15 01:12:14,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:14,358 INFO L93 Difference]: Finished difference Result 12473 states and 17411 transitions. [2019-10-15 01:12:14,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:12:14,358 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 219 [2019-10-15 01:12:14,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:14,423 INFO L225 Difference]: With dead ends: 12473 [2019-10-15 01:12:14,423 INFO L226 Difference]: Without dead ends: 8550 [2019-10-15 01:12:14,439 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:14,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8550 states. [2019-10-15 01:12:14,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8550 to 8528. [2019-10-15 01:12:14,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8528 states. [2019-10-15 01:12:14,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 12338 transitions. [2019-10-15 01:12:14,862 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 12338 transitions. Word has length 219 [2019-10-15 01:12:14,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:14,862 INFO L462 AbstractCegarLoop]: Abstraction has 8528 states and 12338 transitions. [2019-10-15 01:12:14,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:12:14,863 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 12338 transitions. [2019-10-15 01:12:14,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-10-15 01:12:14,888 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:14,889 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:14,889 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:14,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:14,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1862061334, now seen corresponding path program 1 times [2019-10-15 01:12:14,890 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:14,890 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458010428] [2019-10-15 01:12:14,890 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:14,890 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:14,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:15,702 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:15,703 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458010428] [2019-10-15 01:12:15,703 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:15,703 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:12:15,703 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962050245] [2019-10-15 01:12:15,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:12:15,704 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:15,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:12:15,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:15,705 INFO L87 Difference]: Start difference. First operand 8528 states and 12338 transitions. Second operand 9 states. [2019-10-15 01:12:16,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:16,091 INFO L93 Difference]: Finished difference Result 13885 states and 19439 transitions. [2019-10-15 01:12:16,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:12:16,092 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 220 [2019-10-15 01:12:16,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:16,133 INFO L225 Difference]: With dead ends: 13885 [2019-10-15 01:12:16,133 INFO L226 Difference]: Without dead ends: 8590 [2019-10-15 01:12:16,157 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:12:16,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8590 states. [2019-10-15 01:12:16,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 8568. [2019-10-15 01:12:16,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8568 states. [2019-10-15 01:12:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8568 states to 8568 states and 12378 transitions. [2019-10-15 01:12:16,583 INFO L78 Accepts]: Start accepts. Automaton has 8568 states and 12378 transitions. Word has length 220 [2019-10-15 01:12:16,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:16,584 INFO L462 AbstractCegarLoop]: Abstraction has 8568 states and 12378 transitions. [2019-10-15 01:12:16,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:12:16,584 INFO L276 IsEmpty]: Start isEmpty. Operand 8568 states and 12378 transitions. [2019-10-15 01:12:16,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-10-15 01:12:16,620 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:16,621 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:16,621 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:16,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:16,621 INFO L82 PathProgramCache]: Analyzing trace with hash 2088192623, now seen corresponding path program 1 times [2019-10-15 01:12:16,622 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:16,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493823804] [2019-10-15 01:12:16,622 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:16,622 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:16,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:16,867 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:16,868 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493823804] [2019-10-15 01:12:16,868 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:16,868 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:16,868 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011102765] [2019-10-15 01:12:16,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:16,869 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:16,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:16,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:16,870 INFO L87 Difference]: Start difference. First operand 8568 states and 12378 transitions. Second operand 6 states. [2019-10-15 01:12:17,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:17,721 INFO L93 Difference]: Finished difference Result 22638 states and 32102 transitions. [2019-10-15 01:12:17,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:17,722 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2019-10-15 01:12:17,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:17,803 INFO L225 Difference]: With dead ends: 22638 [2019-10-15 01:12:17,804 INFO L226 Difference]: Without dead ends: 17255 [2019-10-15 01:12:17,832 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:17,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17255 states. [2019-10-15 01:12:18,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17255 to 17138. [2019-10-15 01:12:18,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17138 states. [2019-10-15 01:12:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17138 states to 17138 states and 24803 transitions. [2019-10-15 01:12:18,939 INFO L78 Accepts]: Start accepts. Automaton has 17138 states and 24803 transitions. Word has length 219 [2019-10-15 01:12:18,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:18,940 INFO L462 AbstractCegarLoop]: Abstraction has 17138 states and 24803 transitions. [2019-10-15 01:12:18,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:18,940 INFO L276 IsEmpty]: Start isEmpty. Operand 17138 states and 24803 transitions. [2019-10-15 01:12:18,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-15 01:12:18,989 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:18,989 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:18,990 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:18,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:18,990 INFO L82 PathProgramCache]: Analyzing trace with hash 303229700, now seen corresponding path program 1 times [2019-10-15 01:12:18,990 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:18,990 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605384367] [2019-10-15 01:12:18,991 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:18,991 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:18,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:19,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605384367] [2019-10-15 01:12:19,163 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:19,163 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:19,163 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717120561] [2019-10-15 01:12:19,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:19,164 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:19,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:19,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:19,165 INFO L87 Difference]: Start difference. First operand 17138 states and 24803 transitions. Second operand 6 states. [2019-10-15 01:12:20,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:20,436 INFO L93 Difference]: Finished difference Result 45512 states and 64577 transitions. [2019-10-15 01:12:20,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:20,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2019-10-15 01:12:20,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:20,580 INFO L225 Difference]: With dead ends: 45512 [2019-10-15 01:12:20,580 INFO L226 Difference]: Without dead ends: 34719 [2019-10-15 01:12:20,618 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:20,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34719 states.