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_spec7_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:52,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:52,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:52,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:52,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:52,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:52,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:52,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:52,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:52,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:52,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:52,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:52,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:52,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:52,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:52,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:52,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:52,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:52,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:52,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:52,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:52,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:52,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:52,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:52,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:52,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:52,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:52,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:52,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:52,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:52,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:52,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:52,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:52,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:52,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:52,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:52,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:52,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:52,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:52,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:52,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:52,923 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 01:16:52,947 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:52,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:52,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:52,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:52,953 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:52,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:52,953 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:52,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:52,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:52,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:52,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:52,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:52,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:52,956 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:52,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:52,957 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:52,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:52,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:52,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:52,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:52,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:52,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:52,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:52,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:52,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:52,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:52,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:52,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:52,960 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 01:16:53,273 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:53,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:53,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:53,292 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:53,293 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:53,293 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product31.cil.c [2019-10-15 01:16:53,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f3f92f23/1ed77c068b474c2598c3c4b26a8d945a/FLAGff83779d3 [2019-10-15 01:16:54,035 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:54,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product31.cil.c [2019-10-15 01:16:54,070 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f3f92f23/1ed77c068b474c2598c3c4b26a8d945a/FLAGff83779d3 [2019-10-15 01:16:54,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f3f92f23/1ed77c068b474c2598c3c4b26a8d945a [2019-10-15 01:16:54,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:54,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:54,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:54,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:54,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:54,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:54" (1/1) ... [2019-10-15 01:16:54,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174a7eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:54, skipping insertion in model container [2019-10-15 01:16:54,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:54" (1/1) ... [2019-10-15 01:16:54,282 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:54,366 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:55,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:55,163 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:55,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:55,415 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:55,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:55 WrapperNode [2019-10-15 01:16:55,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:55,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:55,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:55,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:55,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:55" (1/1) ... [2019-10-15 01:16:55,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:55" (1/1) ... [2019-10-15 01:16:55,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:55" (1/1) ... [2019-10-15 01:16:55,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:55" (1/1) ... [2019-10-15 01:16:55,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:55" (1/1) ... [2019-10-15 01:16:55,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:55" (1/1) ... [2019-10-15 01:16:55,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:55" (1/1) ... [2019-10-15 01:16:55,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:55,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:55,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:55,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:55,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:55" (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 01:16:55,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:55,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:55,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:55,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:55,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:55,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:55,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:55,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:55,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:55,747 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:55,747 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:55,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:55,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:55,748 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:55,749 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:55,749 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:16:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:16:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:16:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:16:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:16:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:16:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:16:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:16:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-15 01:16:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:16:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:16:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:16:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:16:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:16:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:16:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:16:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:16:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:16:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-15 01:16:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:16:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:58,164 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:58,165 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:58,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:58 BoogieIcfgContainer [2019-10-15 01:16:58,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:58,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:58,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:58,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:58,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:54" (1/3) ... [2019-10-15 01:16:58,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4858df65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:58, skipping insertion in model container [2019-10-15 01:16:58,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:55" (2/3) ... [2019-10-15 01:16:58,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4858df65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:58, skipping insertion in model container [2019-10-15 01:16:58,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:58" (3/3) ... [2019-10-15 01:16:58,175 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product31.cil.c [2019-10-15 01:16:58,186 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:58,196 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:58,208 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:58,244 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:58,244 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:58,246 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:58,247 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:58,248 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:58,248 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:58,248 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:58,248 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:58,295 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states. [2019-10-15 01:16:58,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-15 01:16:58,329 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:58,333 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] [2019-10-15 01:16:58,339 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:58,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:58,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1012113491, now seen corresponding path program 1 times [2019-10-15 01:16:58,354 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:58,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291165880] [2019-10-15 01:16:58,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:58,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:58,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:58,966 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 01:16:58,967 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291165880] [2019-10-15 01:16:58,968 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:58,969 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:58,969 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557638907] [2019-10-15 01:16:58,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:58,980 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:58,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:58,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:58,999 INFO L87 Difference]: Start difference. First operand 554 states. Second operand 2 states. [2019-10-15 01:16:59,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:59,109 INFO L93 Difference]: Finished difference Result 850 states and 1117 transitions. [2019-10-15 01:16:59,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:59,114 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 182 [2019-10-15 01:16:59,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:59,157 INFO L225 Difference]: With dead ends: 850 [2019-10-15 01:16:59,157 INFO L226 Difference]: Without dead ends: 531 [2019-10-15 01:16:59,170 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 01:16:59,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2019-10-15 01:16:59,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2019-10-15 01:16:59,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2019-10-15 01:16:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 701 transitions. [2019-10-15 01:16:59,279 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 701 transitions. Word has length 182 [2019-10-15 01:16:59,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:59,282 INFO L462 AbstractCegarLoop]: Abstraction has 531 states and 701 transitions. [2019-10-15 01:16:59,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:59,282 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 701 transitions. [2019-10-15 01:16:59,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-15 01:16:59,287 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:59,287 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] [2019-10-15 01:16:59,288 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:59,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:59,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1074774869, now seen corresponding path program 1 times [2019-10-15 01:16:59,288 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:59,289 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230647520] [2019-10-15 01:16:59,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:59,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:59,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:59,680 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 01:16:59,681 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230647520] [2019-10-15 01:16:59,681 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:59,682 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:59,682 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466570221] [2019-10-15 01:16:59,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:59,686 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:59,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:59,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:59,688 INFO L87 Difference]: Start difference. First operand 531 states and 701 transitions. Second operand 3 states. [2019-10-15 01:16:59,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:59,780 INFO L93 Difference]: Finished difference Result 833 states and 1082 transitions. [2019-10-15 01:16:59,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:59,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-10-15 01:16:59,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:59,791 INFO L225 Difference]: With dead ends: 833 [2019-10-15 01:16:59,791 INFO L226 Difference]: Without dead ends: 534 [2019-10-15 01:16:59,795 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 01:16:59,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2019-10-15 01:16:59,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 533. [2019-10-15 01:16:59,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2019-10-15 01:16:59,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 703 transitions. [2019-10-15 01:16:59,843 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 703 transitions. Word has length 183 [2019-10-15 01:16:59,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:59,844 INFO L462 AbstractCegarLoop]: Abstraction has 533 states and 703 transitions. [2019-10-15 01:16:59,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:59,844 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 703 transitions. [2019-10-15 01:16:59,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-15 01:16:59,848 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:59,848 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] [2019-10-15 01:16:59,849 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:59,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:59,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1838955167, now seen corresponding path program 1 times [2019-10-15 01:16:59,849 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:59,850 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897169819] [2019-10-15 01:16:59,850 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:59,850 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:59,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:00,041 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 01:17:00,042 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897169819] [2019-10-15 01:17:00,042 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:00,042 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:00,042 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042017134] [2019-10-15 01:17:00,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:00,043 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:00,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:00,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:00,044 INFO L87 Difference]: Start difference. First operand 533 states and 703 transitions. Second operand 3 states. [2019-10-15 01:17:00,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:00,082 INFO L93 Difference]: Finished difference Result 1042 states and 1404 transitions. [2019-10-15 01:17:00,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:00,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-15 01:17:00,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:00,088 INFO L225 Difference]: With dead ends: 1042 [2019-10-15 01:17:00,088 INFO L226 Difference]: Without dead ends: 574 [2019-10-15 01:17:00,090 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 01:17:00,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2019-10-15 01:17:00,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 573. [2019-10-15 01:17:00,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2019-10-15 01:17:00,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 772 transitions. [2019-10-15 01:17:00,119 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 772 transitions. Word has length 189 [2019-10-15 01:17:00,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:00,120 INFO L462 AbstractCegarLoop]: Abstraction has 573 states and 772 transitions. [2019-10-15 01:17:00,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:00,120 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 772 transitions. [2019-10-15 01:17:00,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:17:00,125 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:00,125 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] [2019-10-15 01:17:00,125 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:00,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:00,126 INFO L82 PathProgramCache]: Analyzing trace with hash -120410327, now seen corresponding path program 1 times [2019-10-15 01:17:00,127 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:00,127 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073899641] [2019-10-15 01:17:00,127 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:00,127 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:00,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:00,670 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 01:17:00,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073899641] [2019-10-15 01:17:00,674 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:00,674 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:17:00,674 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595499486] [2019-10-15 01:17:00,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:17:00,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:00,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:17:00,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:17:00,677 INFO L87 Difference]: Start difference. First operand 573 states and 772 transitions. Second operand 19 states. [2019-10-15 01:17:05,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:05,908 INFO L93 Difference]: Finished difference Result 2037 states and 2754 transitions. [2019-10-15 01:17:05,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:17:05,909 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 190 [2019-10-15 01:17:05,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:05,921 INFO L225 Difference]: With dead ends: 2037 [2019-10-15 01:17:05,921 INFO L226 Difference]: Without dead ends: 1751 [2019-10-15 01:17:05,924 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:17:05,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2019-10-15 01:17:06,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1714. [2019-10-15 01:17:06,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1714 states. [2019-10-15 01:17:06,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2325 transitions. [2019-10-15 01:17:06,026 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2325 transitions. Word has length 190 [2019-10-15 01:17:06,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:06,027 INFO L462 AbstractCegarLoop]: Abstraction has 1714 states and 2325 transitions. [2019-10-15 01:17:06,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:17:06,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2325 transitions. [2019-10-15 01:17:06,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:17:06,034 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:06,034 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] [2019-10-15 01:17:06,034 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:06,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:06,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1465895855, now seen corresponding path program 1 times [2019-10-15 01:17:06,035 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:06,036 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940179953] [2019-10-15 01:17:06,036 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:06,036 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:06,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:06,424 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 01:17:06,425 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940179953] [2019-10-15 01:17:06,425 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:06,425 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:17:06,426 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453274506] [2019-10-15 01:17:06,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:17:06,427 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:06,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:17:06,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:17:06,429 INFO L87 Difference]: Start difference. First operand 1714 states and 2325 transitions. Second operand 15 states. [2019-10-15 01:17:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:10,223 INFO L93 Difference]: Finished difference Result 3011 states and 4062 transitions. [2019-10-15 01:17:10,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:17:10,224 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 191 [2019-10-15 01:17:10,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:10,238 INFO L225 Difference]: With dead ends: 3011 [2019-10-15 01:17:10,239 INFO L226 Difference]: Without dead ends: 1816 [2019-10-15 01:17:10,244 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:17:10,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2019-10-15 01:17:10,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1784. [2019-10-15 01:17:10,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2019-10-15 01:17:10,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2439 transitions. [2019-10-15 01:17:10,379 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2439 transitions. Word has length 191 [2019-10-15 01:17:10,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:10,380 INFO L462 AbstractCegarLoop]: Abstraction has 1784 states and 2439 transitions. [2019-10-15 01:17:10,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:17:10,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2439 transitions. [2019-10-15 01:17:10,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 01:17:10,388 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:10,389 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:10,390 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:10,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:10,390 INFO L82 PathProgramCache]: Analyzing trace with hash -632508049, now seen corresponding path program 1 times [2019-10-15 01:17:10,391 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:10,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483346623] [2019-10-15 01:17:10,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:10,392 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:10,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:10,632 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-15 01:17:10,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483346623] [2019-10-15 01:17:10,634 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:10,634 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:10,634 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429430041] [2019-10-15 01:17:10,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:10,636 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:10,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:10,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:10,637 INFO L87 Difference]: Start difference. First operand 1784 states and 2439 transitions. Second operand 5 states. [2019-10-15 01:17:10,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:10,763 INFO L93 Difference]: Finished difference Result 2728 states and 3668 transitions. [2019-10-15 01:17:10,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:17:10,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2019-10-15 01:17:10,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:10,792 INFO L225 Difference]: With dead ends: 2728 [2019-10-15 01:17:10,793 INFO L226 Difference]: Without dead ends: 1448 [2019-10-15 01:17:10,801 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:17:10,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2019-10-15 01:17:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1448. [2019-10-15 01:17:10,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states. [2019-10-15 01:17:10,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1982 transitions. [2019-10-15 01:17:10,916 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1982 transitions. Word has length 194 [2019-10-15 01:17:10,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:10,916 INFO L462 AbstractCegarLoop]: Abstraction has 1448 states and 1982 transitions. [2019-10-15 01:17:10,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:10,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1982 transitions. [2019-10-15 01:17:10,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:17:10,922 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:10,922 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] [2019-10-15 01:17:10,923 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:10,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:10,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1602067908, now seen corresponding path program 1 times [2019-10-15 01:17:10,923 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:10,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877952604] [2019-10-15 01:17:10,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:10,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:10,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:11,286 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 01:17:11,287 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877952604] [2019-10-15 01:17:11,287 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:11,287 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:17:11,288 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136925413] [2019-10-15 01:17:11,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:17:11,288 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:11,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:17:11,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:17:11,289 INFO L87 Difference]: Start difference. First operand 1448 states and 1982 transitions. Second operand 16 states. [2019-10-15 01:17:11,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:11,777 INFO L93 Difference]: Finished difference Result 2464 states and 3327 transitions. [2019-10-15 01:17:11,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:17:11,778 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 191 [2019-10-15 01:17:11,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:11,791 INFO L225 Difference]: With dead ends: 2464 [2019-10-15 01:17:11,791 INFO L226 Difference]: Without dead ends: 1500 [2019-10-15 01:17:11,794 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:17:11,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2019-10-15 01:17:11,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1482. [2019-10-15 01:17:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1482 states. [2019-10-15 01:17:11,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 2026 transitions. [2019-10-15 01:17:11,882 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 2026 transitions. Word has length 191 [2019-10-15 01:17:11,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:11,885 INFO L462 AbstractCegarLoop]: Abstraction has 1482 states and 2026 transitions. [2019-10-15 01:17:11,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:17:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 2026 transitions. [2019-10-15 01:17:11,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:17:11,890 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:11,890 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] [2019-10-15 01:17:11,890 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:11,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:11,891 INFO L82 PathProgramCache]: Analyzing trace with hash 204651284, now seen corresponding path program 1 times [2019-10-15 01:17:11,892 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:11,892 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321420124] [2019-10-15 01:17:11,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:11,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:11,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:12,091 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 01:17:12,091 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321420124] [2019-10-15 01:17:12,091 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:12,092 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:12,092 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750239157] [2019-10-15 01:17:12,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:12,093 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:12,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:12,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:12,093 INFO L87 Difference]: Start difference. First operand 1482 states and 2026 transitions. Second operand 5 states. [2019-10-15 01:17:13,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:13,327 INFO L93 Difference]: Finished difference Result 3953 states and 5365 transitions. [2019-10-15 01:17:13,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:17:13,331 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2019-10-15 01:17:13,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:13,353 INFO L225 Difference]: With dead ends: 3953 [2019-10-15 01:17:13,353 INFO L226 Difference]: Without dead ends: 3305 [2019-10-15 01:17:13,360 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 01:17:13,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2019-10-15 01:17:13,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 3274. [2019-10-15 01:17:13,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3274 states. [2019-10-15 01:17:13,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4448 transitions. [2019-10-15 01:17:13,524 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4448 transitions. Word has length 191 [2019-10-15 01:17:13,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:13,524 INFO L462 AbstractCegarLoop]: Abstraction has 3274 states and 4448 transitions. [2019-10-15 01:17:13,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:13,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4448 transitions. [2019-10-15 01:17:13,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:17:13,533 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:13,534 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] [2019-10-15 01:17:13,534 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:13,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:13,534 INFO L82 PathProgramCache]: Analyzing trace with hash 224988659, now seen corresponding path program 1 times [2019-10-15 01:17:13,535 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:13,535 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760999740] [2019-10-15 01:17:13,535 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:13,535 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:13,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:13,814 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 01:17:13,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760999740] [2019-10-15 01:17:13,817 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:13,817 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:17:13,818 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362159648] [2019-10-15 01:17:13,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:17:13,820 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:13,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:17:13,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:17:13,821 INFO L87 Difference]: Start difference. First operand 3274 states and 4448 transitions. Second operand 7 states. [2019-10-15 01:17:16,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:16,106 INFO L93 Difference]: Finished difference Result 10723 states and 14842 transitions. [2019-10-15 01:17:16,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:17:16,106 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2019-10-15 01:17:16,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:16,170 INFO L225 Difference]: With dead ends: 10723 [2019-10-15 01:17:16,171 INFO L226 Difference]: Without dead ends: 8306 [2019-10-15 01:17:16,190 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:17:16,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8306 states. [2019-10-15 01:17:16,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8306 to 8284. [2019-10-15 01:17:16,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8284 states. [2019-10-15 01:17:16,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8284 states to 8284 states and 11357 transitions. [2019-10-15 01:17:16,822 INFO L78 Accepts]: Start accepts. Automaton has 8284 states and 11357 transitions. Word has length 191 [2019-10-15 01:17:16,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:16,824 INFO L462 AbstractCegarLoop]: Abstraction has 8284 states and 11357 transitions. [2019-10-15 01:17:16,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:17:16,825 INFO L276 IsEmpty]: Start isEmpty. Operand 8284 states and 11357 transitions. [2019-10-15 01:17:16,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:17:16,834 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:16,834 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] [2019-10-15 01:17:16,835 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:16,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:16,835 INFO L82 PathProgramCache]: Analyzing trace with hash 10550669, now seen corresponding path program 1 times [2019-10-15 01:17:16,836 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:16,836 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846121968] [2019-10-15 01:17:16,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:16,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:16,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:17,444 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 01:17:17,445 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846121968] [2019-10-15 01:17:17,446 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:17,447 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:17:17,447 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963805520] [2019-10-15 01:17:17,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:17:17,449 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:17,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:17:17,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:17:17,450 INFO L87 Difference]: Start difference. First operand 8284 states and 11357 transitions. Second operand 26 states. [2019-10-15 01:17:18,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:18,575 INFO L93 Difference]: Finished difference Result 15927 states and 21988 transitions. [2019-10-15 01:17:18,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-15 01:17:18,575 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 192 [2019-10-15 01:17:18,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:18,644 INFO L225 Difference]: With dead ends: 15927 [2019-10-15 01:17:18,644 INFO L226 Difference]: Without dead ends: 7071 [2019-10-15 01:17:18,683 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 01:17:18,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2019-10-15 01:17:19,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 6938. [2019-10-15 01:17:19,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6938 states. [2019-10-15 01:17:19,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6938 states to 6938 states and 9452 transitions. [2019-10-15 01:17:19,156 INFO L78 Accepts]: Start accepts. Automaton has 6938 states and 9452 transitions. Word has length 192 [2019-10-15 01:17:19,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:19,156 INFO L462 AbstractCegarLoop]: Abstraction has 6938 states and 9452 transitions. [2019-10-15 01:17:19,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 01:17:19,157 INFO L276 IsEmpty]: Start isEmpty. Operand 6938 states and 9452 transitions. [2019-10-15 01:17:19,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:17:19,168 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:19,168 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] [2019-10-15 01:17:19,169 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:19,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:19,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1712144114, now seen corresponding path program 1 times [2019-10-15 01:17:19,169 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:19,170 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637547078] [2019-10-15 01:17:19,170 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,170 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:19,379 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 01:17:19,379 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637547078] [2019-10-15 01:17:19,379 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:19,380 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:17:19,380 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369649284] [2019-10-15 01:17:19,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:17:19,381 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:19,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:17:19,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:17:19,382 INFO L87 Difference]: Start difference. First operand 6938 states and 9452 transitions. Second operand 10 states. [2019-10-15 01:17:19,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:19,533 INFO L93 Difference]: Finished difference Result 6991 states and 9534 transitions. [2019-10-15 01:17:19,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:17:19,533 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2019-10-15 01:17:19,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:19,567 INFO L225 Difference]: With dead ends: 6991 [2019-10-15 01:17:19,568 INFO L226 Difference]: Without dead ends: 6930 [2019-10-15 01:17:19,574 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:17:19,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6930 states. [2019-10-15 01:17:19,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6930 to 6922. [2019-10-15 01:17:19,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6922 states. [2019-10-15 01:17:19,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6922 states to 6922 states and 9416 transitions. [2019-10-15 01:17:19,870 INFO L78 Accepts]: Start accepts. Automaton has 6922 states and 9416 transitions. Word has length 196 [2019-10-15 01:17:19,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:19,871 INFO L462 AbstractCegarLoop]: Abstraction has 6922 states and 9416 transitions. [2019-10-15 01:17:19,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:17:19,871 INFO L276 IsEmpty]: Start isEmpty. Operand 6922 states and 9416 transitions. [2019-10-15 01:17:19,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:17:19,879 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:19,879 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] [2019-10-15 01:17:19,880 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:19,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:19,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1889598004, now seen corresponding path program 1 times [2019-10-15 01:17:19,880 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:19,880 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803426491] [2019-10-15 01:17:19,881 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,881 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:20,026 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 01:17:20,027 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803426491] [2019-10-15 01:17:20,027 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:20,027 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:20,027 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128468174] [2019-10-15 01:17:20,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:20,028 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:20,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:20,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:20,029 INFO L87 Difference]: Start difference. First operand 6922 states and 9416 transitions. Second operand 5 states. [2019-10-15 01:17:20,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:20,281 INFO L93 Difference]: Finished difference Result 11692 states and 15673 transitions. [2019-10-15 01:17:20,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:17:20,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2019-10-15 01:17:20,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:20,318 INFO L225 Difference]: With dead ends: 11692 [2019-10-15 01:17:20,318 INFO L226 Difference]: Without dead ends: 7071 [2019-10-15 01:17:20,337 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:20,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2019-10-15 01:17:20,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 7004. [2019-10-15 01:17:20,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7004 states. [2019-10-15 01:17:20,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7004 states to 7004 states and 9521 transitions. [2019-10-15 01:17:20,607 INFO L78 Accepts]: Start accepts. Automaton has 7004 states and 9521 transitions. Word has length 201 [2019-10-15 01:17:20,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:20,608 INFO L462 AbstractCegarLoop]: Abstraction has 7004 states and 9521 transitions. [2019-10-15 01:17:20,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:20,608 INFO L276 IsEmpty]: Start isEmpty. Operand 7004 states and 9521 transitions. [2019-10-15 01:17:20,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:17:20,616 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:20,616 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] [2019-10-15 01:17:20,616 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:20,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:20,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1244172180, now seen corresponding path program 1 times [2019-10-15 01:17:20,617 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:20,617 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446972570] [2019-10-15 01:17:20,618 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:20,618 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:20,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:20,808 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 01:17:20,808 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446972570] [2019-10-15 01:17:20,809 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:20,809 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:17:20,809 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251338233] [2019-10-15 01:17:20,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:17:20,810 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:20,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:17:20,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:17:20,811 INFO L87 Difference]: Start difference. First operand 7004 states and 9521 transitions. Second operand 11 states. [2019-10-15 01:17:21,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:21,249 INFO L93 Difference]: Finished difference Result 11675 states and 15600 transitions. [2019-10-15 01:17:21,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:17:21,249 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 201 [2019-10-15 01:17:21,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:21,278 INFO L225 Difference]: With dead ends: 11675 [2019-10-15 01:17:21,279 INFO L226 Difference]: Without dead ends: 7002 [2019-10-15 01:17:21,294 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:17:21,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7002 states. [2019-10-15 01:17:22,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7002 to 6966. [2019-10-15 01:17:22,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6966 states. [2019-10-15 01:17:22,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6966 states to 6966 states and 9439 transitions. [2019-10-15 01:17:22,208 INFO L78 Accepts]: Start accepts. Automaton has 6966 states and 9439 transitions. Word has length 201 [2019-10-15 01:17:22,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:22,209 INFO L462 AbstractCegarLoop]: Abstraction has 6966 states and 9439 transitions. [2019-10-15 01:17:22,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:17:22,209 INFO L276 IsEmpty]: Start isEmpty. Operand 6966 states and 9439 transitions. [2019-10-15 01:17:22,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:17:22,222 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:22,222 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] [2019-10-15 01:17:22,223 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:22,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:22,223 INFO L82 PathProgramCache]: Analyzing trace with hash -2081172186, now seen corresponding path program 1 times [2019-10-15 01:17:22,224 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:22,224 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338458036] [2019-10-15 01:17:22,224 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:22,225 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:22,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:22,459 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 01:17:22,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338458036] [2019-10-15 01:17:22,460 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:22,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:17:22,461 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631547000] [2019-10-15 01:17:22,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:17:22,462 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:22,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:17:22,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:17:22,463 INFO L87 Difference]: Start difference. First operand 6966 states and 9439 transitions. Second operand 6 states. [2019-10-15 01:17:23,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:23,668 INFO L93 Difference]: Finished difference Result 19532 states and 26225 transitions. [2019-10-15 01:17:23,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:17:23,669 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 202 [2019-10-15 01:17:23,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:23,743 INFO L225 Difference]: With dead ends: 19532 [2019-10-15 01:17:23,743 INFO L226 Difference]: Without dead ends: 13915 [2019-10-15 01:17:23,773 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 01:17:23,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13915 states.