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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:50,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:50,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:50,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:50,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:50,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:50,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:50,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:50,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:50,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:50,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:50,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:50,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:50,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:50,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:50,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:50,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:50,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:50,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:50,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:50,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:50,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:50,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:50,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:50,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:50,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:50,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:50,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:50,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:50,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:50,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:50,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:50,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:50,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:50,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:50,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:50,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:50,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:50,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:50,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:50,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:50,834 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 01:16:50,847 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:50,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:50,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:50,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:50,849 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:50,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:50,850 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:50,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:50,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:50,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:50,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:50,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:50,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:50,851 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:50,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:50,851 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:50,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:50,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:50,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:50,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:50,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:50,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:50,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:50,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:50,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:50,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:50,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:50,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:50,854 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 01:16:51,136 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:51,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:51,151 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:51,153 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:51,153 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:51,154 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product28.cil.c [2019-10-15 01:16:51,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/888324176/55ca7b74e3db4255a2799ea8cb46e3d0/FLAGe05ba47fd [2019-10-15 01:16:51,799 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:51,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product28.cil.c [2019-10-15 01:16:51,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/888324176/55ca7b74e3db4255a2799ea8cb46e3d0/FLAGe05ba47fd [2019-10-15 01:16:52,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/888324176/55ca7b74e3db4255a2799ea8cb46e3d0 [2019-10-15 01:16:52,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:52,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:52,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:52,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:52,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:52,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:52" (1/1) ... [2019-10-15 01:16:52,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b53542d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:52, skipping insertion in model container [2019-10-15 01:16:52,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:52" (1/1) ... [2019-10-15 01:16:52,070 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:52,144 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:52,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:52,920 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:53,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:53,185 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:53,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53 WrapperNode [2019-10-15 01:16:53,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:53,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:53,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:53,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:53,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:53,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:53,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:53,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:53,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (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 01:16:53,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:53,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:53,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:53,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:53,497 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:53,497 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-15 01:16:53,497 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:16:53,497 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:53,498 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:53,498 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:53,498 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:53,499 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:53,499 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:53,499 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:53,499 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:53,500 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:53,500 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:53,500 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:53,500 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:53,501 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:53,501 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:53,501 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:16:53,502 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:16:53,502 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:53,502 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:53,503 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:53,503 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:53,503 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:53,503 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:53,503 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:53,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:53,504 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:53,504 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:16:53,504 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:16:53,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:53,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:53,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:53,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:53,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:53,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:53,506 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:53,506 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:53,506 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:53,506 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:53,506 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:53,507 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:53,507 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:53,507 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:53,507 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:53,507 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:53,507 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:16:53,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:53,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:53,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:53,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:53,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:53,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:53,510 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:53,510 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:53,510 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:53,510 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:53,511 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:53,511 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:53,511 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:53,511 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:53,511 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:53,511 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:53,512 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:53,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:53,512 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:53,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:53,512 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:53,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:53,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:53,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:53,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:53,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-15 01:16:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:16:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:16:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:16:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:16:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:16:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:16:53,529 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:53,529 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:53,529 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:53,529 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:53,529 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:53,529 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:53,531 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:53,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:53,531 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:53,531 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:53,531 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:53,531 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:53,531 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:53,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:53,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:53,535 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:53,535 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:53,535 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:53,535 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:53,535 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:53,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:53,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:55,581 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:55,581 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:55,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:55 BoogieIcfgContainer [2019-10-15 01:16:55,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:55,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:55,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:55,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:55,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:52" (1/3) ... [2019-10-15 01:16:55,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b44b813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:55, skipping insertion in model container [2019-10-15 01:16:55,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (2/3) ... [2019-10-15 01:16:55,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b44b813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:55, skipping insertion in model container [2019-10-15 01:16:55,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:55" (3/3) ... [2019-10-15 01:16:55,592 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product28.cil.c [2019-10-15 01:16:55,602 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:55,613 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:55,625 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:55,663 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:55,663 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:55,663 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:55,663 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:55,664 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:55,664 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:55,664 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:55,664 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:55,703 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states. [2019-10-15 01:16:55,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-15 01:16:55,738 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:55,744 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 01:16:55,746 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:55,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:55,755 INFO L82 PathProgramCache]: Analyzing trace with hash 791417093, now seen corresponding path program 1 times [2019-10-15 01:16:55,764 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:55,765 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887764717] [2019-10-15 01:16:55,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:55,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:55,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:56,434 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 01:16:56,435 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887764717] [2019-10-15 01:16:56,436 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:56,436 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:56,436 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982569769] [2019-10-15 01:16:56,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:56,443 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:56,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:56,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:56,460 INFO L87 Difference]: Start difference. First operand 505 states. Second operand 2 states. [2019-10-15 01:16:56,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:56,553 INFO L93 Difference]: Finished difference Result 707 states and 939 transitions. [2019-10-15 01:16:56,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:56,555 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 182 [2019-10-15 01:16:56,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:56,594 INFO L225 Difference]: With dead ends: 707 [2019-10-15 01:16:56,594 INFO L226 Difference]: Without dead ends: 454 [2019-10-15 01:16:56,605 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 01:16:56,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-10-15 01:16:56,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2019-10-15 01:16:56,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-10-15 01:16:56,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 605 transitions. [2019-10-15 01:16:56,709 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 605 transitions. Word has length 182 [2019-10-15 01:16:56,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:56,711 INFO L462 AbstractCegarLoop]: Abstraction has 454 states and 605 transitions. [2019-10-15 01:16:56,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:56,712 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 605 transitions. [2019-10-15 01:16:56,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-15 01:16:56,717 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:56,717 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 01:16:56,717 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:56,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:56,718 INFO L82 PathProgramCache]: Analyzing trace with hash 34062624, now seen corresponding path program 1 times [2019-10-15 01:16:56,718 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:56,718 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124784943] [2019-10-15 01:16:56,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:56,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:56,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:56,965 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 01:16:56,966 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124784943] [2019-10-15 01:16:56,966 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:56,966 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:56,966 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785404719] [2019-10-15 01:16:56,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:56,975 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:56,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:56,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:56,976 INFO L87 Difference]: Start difference. First operand 454 states and 605 transitions. Second operand 3 states. [2019-10-15 01:16:57,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:57,060 INFO L93 Difference]: Finished difference Result 690 states and 904 transitions. [2019-10-15 01:16:57,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:57,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-10-15 01:16:57,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:57,069 INFO L225 Difference]: With dead ends: 690 [2019-10-15 01:16:57,069 INFO L226 Difference]: Without dead ends: 457 [2019-10-15 01:16:57,072 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 01:16:57,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2019-10-15 01:16:57,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 456. [2019-10-15 01:16:57,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2019-10-15 01:16:57,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 607 transitions. [2019-10-15 01:16:57,153 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 607 transitions. Word has length 183 [2019-10-15 01:16:57,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:57,155 INFO L462 AbstractCegarLoop]: Abstraction has 456 states and 607 transitions. [2019-10-15 01:16:57,155 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 607 transitions. [2019-10-15 01:16:57,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-15 01:16:57,160 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:57,160 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 01:16:57,160 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:57,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:57,161 INFO L82 PathProgramCache]: Analyzing trace with hash 2105837044, now seen corresponding path program 1 times [2019-10-15 01:16:57,161 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:57,161 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530297925] [2019-10-15 01:16:57,162 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:57,162 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:57,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:57,331 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 01:16:57,331 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530297925] [2019-10-15 01:16:57,331 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:57,332 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:57,332 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509487572] [2019-10-15 01:16:57,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:57,333 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:57,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:57,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:57,333 INFO L87 Difference]: Start difference. First operand 456 states and 607 transitions. Second operand 3 states. [2019-10-15 01:16:57,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:57,367 INFO L93 Difference]: Finished difference Result 886 states and 1209 transitions. [2019-10-15 01:16:57,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:57,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-15 01:16:57,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:57,372 INFO L225 Difference]: With dead ends: 886 [2019-10-15 01:16:57,372 INFO L226 Difference]: Without dead ends: 495 [2019-10-15 01:16:57,374 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 01:16:57,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2019-10-15 01:16:57,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 494. [2019-10-15 01:16:57,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2019-10-15 01:16:57,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 673 transitions. [2019-10-15 01:16:57,399 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 673 transitions. Word has length 189 [2019-10-15 01:16:57,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:57,399 INFO L462 AbstractCegarLoop]: Abstraction has 494 states and 673 transitions. [2019-10-15 01:16:57,399 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:57,400 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 673 transitions. [2019-10-15 01:16:57,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:16:57,403 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:57,404 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 01:16:57,404 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:57,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:57,405 INFO L82 PathProgramCache]: Analyzing trace with hash -89354053, now seen corresponding path program 1 times [2019-10-15 01:16:57,405 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:57,405 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328679206] [2019-10-15 01:16:57,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:57,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:57,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:58,106 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 01:16:58,109 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328679206] [2019-10-15 01:16:58,109 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:58,110 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:16:58,110 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685947645] [2019-10-15 01:16:58,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:16:58,111 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:58,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:16:58,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:16:58,114 INFO L87 Difference]: Start difference. First operand 494 states and 673 transitions. Second operand 19 states. [2019-10-15 01:17:02,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:02,133 INFO L93 Difference]: Finished difference Result 1666 states and 2267 transitions. [2019-10-15 01:17:02,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-10-15 01:17:02,133 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 190 [2019-10-15 01:17:02,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:02,144 INFO L225 Difference]: With dead ends: 1666 [2019-10-15 01:17:02,145 INFO L226 Difference]: Without dead ends: 1451 [2019-10-15 01:17:02,147 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=267, Invalid=2385, Unknown=0, NotChecked=0, Total=2652 [2019-10-15 01:17:02,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2019-10-15 01:17:02,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1419. [2019-10-15 01:17:02,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1419 states. [2019-10-15 01:17:02,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 1938 transitions. [2019-10-15 01:17:02,238 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 1938 transitions. Word has length 190 [2019-10-15 01:17:02,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:02,239 INFO L462 AbstractCegarLoop]: Abstraction has 1419 states and 1938 transitions. [2019-10-15 01:17:02,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:17:02,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 1938 transitions. [2019-10-15 01:17:02,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:17:02,244 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:02,245 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 01:17:02,245 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:02,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:02,245 INFO L82 PathProgramCache]: Analyzing trace with hash 2067450055, now seen corresponding path program 1 times [2019-10-15 01:17:02,246 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:02,246 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561410026] [2019-10-15 01:17:02,246 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,246 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:02,522 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 01:17:02,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561410026] [2019-10-15 01:17:02,523 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:02,523 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:17:02,524 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426617700] [2019-10-15 01:17:02,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:17:02,524 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:02,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:17:02,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:17:02,525 INFO L87 Difference]: Start difference. First operand 1419 states and 1938 transitions. Second operand 11 states. [2019-10-15 01:17:02,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:02,901 INFO L93 Difference]: Finished difference Result 2414 states and 3259 transitions. [2019-10-15 01:17:02,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:17:02,901 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 191 [2019-10-15 01:17:02,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:02,911 INFO L225 Difference]: With dead ends: 2414 [2019-10-15 01:17:02,911 INFO L226 Difference]: Without dead ends: 1484 [2019-10-15 01:17:02,914 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 01:17:02,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2019-10-15 01:17:02,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1477. [2019-10-15 01:17:02,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1477 states. [2019-10-15 01:17:02,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2031 transitions. [2019-10-15 01:17:02,995 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2031 transitions. Word has length 191 [2019-10-15 01:17:02,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:02,996 INFO L462 AbstractCegarLoop]: Abstraction has 1477 states and 2031 transitions. [2019-10-15 01:17:02,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:17:02,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2031 transitions. [2019-10-15 01:17:03,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:17:03,002 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:03,002 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 01:17:03,002 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:03,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:03,003 INFO L82 PathProgramCache]: Analyzing trace with hash -393480967, now seen corresponding path program 1 times [2019-10-15 01:17:03,003 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:03,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066667647] [2019-10-15 01:17:03,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:03,155 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 01:17:03,156 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066667647] [2019-10-15 01:17:03,157 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:03,157 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:03,157 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106867514] [2019-10-15 01:17:03,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:03,158 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:03,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:03,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:03,158 INFO L87 Difference]: Start difference. First operand 1477 states and 2031 transitions. Second operand 5 states. [2019-10-15 01:17:04,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:04,329 INFO L93 Difference]: Finished difference Result 3622 states and 4991 transitions. [2019-10-15 01:17:04,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:17:04,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2019-10-15 01:17:04,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:04,354 INFO L225 Difference]: With dead ends: 3622 [2019-10-15 01:17:04,355 INFO L226 Difference]: Without dead ends: 3145 [2019-10-15 01:17:04,360 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 01:17:04,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2019-10-15 01:17:04,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 3125. [2019-10-15 01:17:04,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3125 states. [2019-10-15 01:17:04,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 4309 transitions. [2019-10-15 01:17:04,572 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 4309 transitions. Word has length 191 [2019-10-15 01:17:04,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:04,572 INFO L462 AbstractCegarLoop]: Abstraction has 3125 states and 4309 transitions. [2019-10-15 01:17:04,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:04,572 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 4309 transitions. [2019-10-15 01:17:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:17:04,581 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:04,581 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 01:17:04,581 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:04,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:04,582 INFO L82 PathProgramCache]: Analyzing trace with hash -373143592, now seen corresponding path program 1 times [2019-10-15 01:17:04,582 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:04,582 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684107296] [2019-10-15 01:17:04,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:04,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:04,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:04,918 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 01:17:04,918 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684107296] [2019-10-15 01:17:04,919 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:04,919 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:17:04,919 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932781052] [2019-10-15 01:17:04,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:17:04,920 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:04,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:17:04,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:17:04,921 INFO L87 Difference]: Start difference. First operand 3125 states and 4309 transitions. Second operand 7 states. [2019-10-15 01:17:06,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:06,731 INFO L93 Difference]: Finished difference Result 10144 states and 14343 transitions. [2019-10-15 01:17:06,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:17:06,731 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2019-10-15 01:17:06,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:06,784 INFO L225 Difference]: With dead ends: 10144 [2019-10-15 01:17:06,784 INFO L226 Difference]: Without dead ends: 7862 [2019-10-15 01:17:06,799 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 01:17:06,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7862 states. [2019-10-15 01:17:07,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7862 to 7822. [2019-10-15 01:17:07,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7822 states. [2019-10-15 01:17:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7822 states to 7822 states and 10819 transitions. [2019-10-15 01:17:07,472 INFO L78 Accepts]: Start accepts. Automaton has 7822 states and 10819 transitions. Word has length 191 [2019-10-15 01:17:07,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:07,475 INFO L462 AbstractCegarLoop]: Abstraction has 7822 states and 10819 transitions. [2019-10-15 01:17:07,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:17:07,475 INFO L276 IsEmpty]: Start isEmpty. Operand 7822 states and 10819 transitions. [2019-10-15 01:17:07,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:17:07,484 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:07,484 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 01:17:07,485 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:07,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:07,485 INFO L82 PathProgramCache]: Analyzing trace with hash 960811411, now seen corresponding path program 1 times [2019-10-15 01:17:07,485 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:07,485 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280995053] [2019-10-15 01:17:07,486 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:07,486 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:07,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:08,156 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 01:17:08,156 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280995053] [2019-10-15 01:17:08,157 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:08,157 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:17:08,157 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903475961] [2019-10-15 01:17:08,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:17:08,158 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:08,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:17:08,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:17:08,159 INFO L87 Difference]: Start difference. First operand 7822 states and 10819 transitions. Second operand 26 states. [2019-10-15 01:17:09,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:09,225 INFO L93 Difference]: Finished difference Result 15767 states and 22449 transitions. [2019-10-15 01:17:09,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-15 01:17:09,225 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 192 [2019-10-15 01:17:09,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:09,276 INFO L225 Difference]: With dead ends: 15767 [2019-10-15 01:17:09,277 INFO L226 Difference]: Without dead ends: 7467 [2019-10-15 01:17:09,311 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 01:17:09,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7467 states. [2019-10-15 01:17:09,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7467 to 7197. [2019-10-15 01:17:09,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7197 states. [2019-10-15 01:17:09,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7197 states to 7197 states and 9976 transitions. [2019-10-15 01:17:09,673 INFO L78 Accepts]: Start accepts. Automaton has 7197 states and 9976 transitions. Word has length 192 [2019-10-15 01:17:09,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:09,673 INFO L462 AbstractCegarLoop]: Abstraction has 7197 states and 9976 transitions. [2019-10-15 01:17:09,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 01:17:09,674 INFO L276 IsEmpty]: Start isEmpty. Operand 7197 states and 9976 transitions. [2019-10-15 01:17:09,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:17:09,683 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:09,684 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 01:17:09,684 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:09,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:09,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1419526608, now seen corresponding path program 1 times [2019-10-15 01:17:09,685 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:09,685 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783552204] [2019-10-15 01:17:09,685 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,685 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:09,870 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 01:17:09,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783552204] [2019-10-15 01:17:09,872 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:09,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:17:09,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043899640] [2019-10-15 01:17:09,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:17:09,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:09,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:17:09,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:17:09,875 INFO L87 Difference]: Start difference. First operand 7197 states and 9976 transitions. Second operand 10 states. [2019-10-15 01:17:10,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:10,085 INFO L93 Difference]: Finished difference Result 7262 states and 10060 transitions. [2019-10-15 01:17:10,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:17:10,086 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2019-10-15 01:17:10,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:10,198 INFO L225 Difference]: With dead ends: 7262 [2019-10-15 01:17:10,198 INFO L226 Difference]: Without dead ends: 7187 [2019-10-15 01:17:10,202 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 01:17:10,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7187 states. [2019-10-15 01:17:10,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7187 to 7187. [2019-10-15 01:17:10,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7187 states. [2019-10-15 01:17:10,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7187 states to 7187 states and 9926 transitions. [2019-10-15 01:17:10,512 INFO L78 Accepts]: Start accepts. Automaton has 7187 states and 9926 transitions. Word has length 196 [2019-10-15 01:17:10,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:10,514 INFO L462 AbstractCegarLoop]: Abstraction has 7187 states and 9926 transitions. [2019-10-15 01:17:10,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:17:10,515 INFO L276 IsEmpty]: Start isEmpty. Operand 7187 states and 9926 transitions. [2019-10-15 01:17:10,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:17:10,525 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:10,525 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 01:17:10,525 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:10,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:10,526 INFO L82 PathProgramCache]: Analyzing trace with hash -106874396, now seen corresponding path program 1 times [2019-10-15 01:17:10,526 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:10,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237721704] [2019-10-15 01:17:10,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:10,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:10,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:10,664 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 01:17:10,665 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237721704] [2019-10-15 01:17:10,665 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:10,665 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:10,666 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477335919] [2019-10-15 01:17:10,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:10,667 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:10,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:10,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:10,668 INFO L87 Difference]: Start difference. First operand 7187 states and 9926 transitions. Second operand 5 states. [2019-10-15 01:17:10,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:10,915 INFO L93 Difference]: Finished difference Result 13263 states and 18050 transitions. [2019-10-15 01:17:10,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:17:10,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2019-10-15 01:17:10,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:10,972 INFO L225 Difference]: With dead ends: 13263 [2019-10-15 01:17:10,972 INFO L226 Difference]: Without dead ends: 7392 [2019-10-15 01:17:10,998 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 01:17:11,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7392 states. [2019-10-15 01:17:11,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7392 to 7291. [2019-10-15 01:17:11,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7291 states. [2019-10-15 01:17:11,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7291 states to 7291 states and 10066 transitions. [2019-10-15 01:17:11,417 INFO L78 Accepts]: Start accepts. Automaton has 7291 states and 10066 transitions. Word has length 201 [2019-10-15 01:17:11,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:11,418 INFO L462 AbstractCegarLoop]: Abstraction has 7291 states and 10066 transitions. [2019-10-15 01:17:11,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:11,418 INFO L276 IsEmpty]: Start isEmpty. Operand 7291 states and 10066 transitions. [2019-10-15 01:17:11,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:17:11,428 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:11,429 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:11,429 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:11,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:11,429 INFO L82 PathProgramCache]: Analyzing trace with hash -530905528, now seen corresponding path program 1 times [2019-10-15 01:17:11,430 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:11,430 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8310824] [2019-10-15 01:17:11,430 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:11,430 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:11,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:11,633 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 01:17:11,634 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8310824] [2019-10-15 01:17:11,634 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:11,634 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:11,635 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496623159] [2019-10-15 01:17:11,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:11,636 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:11,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:11,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:11,637 INFO L87 Difference]: Start difference. First operand 7291 states and 10066 transitions. Second operand 5 states. [2019-10-15 01:17:11,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:11,836 INFO L93 Difference]: Finished difference Result 9177 states and 12566 transitions. [2019-10-15 01:17:11,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:17:11,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2019-10-15 01:17:11,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:11,866 INFO L225 Difference]: With dead ends: 9177 [2019-10-15 01:17:11,866 INFO L226 Difference]: Without dead ends: 5691 [2019-10-15 01:17:11,879 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 01:17:11,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2019-10-15 01:17:12,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 5679. [2019-10-15 01:17:12,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5679 states. [2019-10-15 01:17:12,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5679 states to 5679 states and 7775 transitions. [2019-10-15 01:17:12,105 INFO L78 Accepts]: Start accepts. Automaton has 5679 states and 7775 transitions. Word has length 203 [2019-10-15 01:17:12,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:12,105 INFO L462 AbstractCegarLoop]: Abstraction has 5679 states and 7775 transitions. [2019-10-15 01:17:12,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:12,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5679 states and 7775 transitions. [2019-10-15 01:17:12,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:17:12,114 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:12,114 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:12,115 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:12,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:12,115 INFO L82 PathProgramCache]: Analyzing trace with hash -927665010, now seen corresponding path program 1 times [2019-10-15 01:17:12,115 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:12,115 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824651518] [2019-10-15 01:17:12,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:12,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:12,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:12,261 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 01:17:12,261 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824651518] [2019-10-15 01:17:12,262 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:12,262 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:17:12,262 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328893546] [2019-10-15 01:17:12,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:17:12,263 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:12,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:17:12,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:17:12,263 INFO L87 Difference]: Start difference. First operand 5679 states and 7775 transitions. Second operand 6 states. [2019-10-15 01:17:13,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:13,056 INFO L93 Difference]: Finished difference Result 15992 states and 21689 transitions. [2019-10-15 01:17:13,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:17:13,056 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 201 [2019-10-15 01:17:13,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:13,105 INFO L225 Difference]: With dead ends: 15992 [2019-10-15 01:17:13,105 INFO L226 Difference]: Without dead ends: 11287 [2019-10-15 01:17:13,126 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 01:17:13,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11287 states. [2019-10-15 01:17:13,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11287 to 11125. [2019-10-15 01:17:13,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11125 states. [2019-10-15 01:17:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11125 states to 11125 states and 15225 transitions. [2019-10-15 01:17:13,601 INFO L78 Accepts]: Start accepts. Automaton has 11125 states and 15225 transitions. Word has length 201 [2019-10-15 01:17:13,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:13,601 INFO L462 AbstractCegarLoop]: Abstraction has 11125 states and 15225 transitions. [2019-10-15 01:17:13,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:17:13,602 INFO L276 IsEmpty]: Start isEmpty. Operand 11125 states and 15225 transitions. [2019-10-15 01:17:13,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-15 01:17:13,618 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:13,618 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:13,619 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:13,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:13,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1787182647, now seen corresponding path program 1 times [2019-10-15 01:17:13,619 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:13,619 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57814025] [2019-10-15 01:17:13,620 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:13,620 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:13,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:13,787 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:17:13,788 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57814025] [2019-10-15 01:17:13,788 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:13,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:17:13,788 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273222927] [2019-10-15 01:17:13,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:17:13,789 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:13,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:17:13,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:17:13,790 INFO L87 Difference]: Start difference. First operand 11125 states and 15225 transitions. Second operand 8 states. [2019-10-15 01:17:15,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:15,341 INFO L93 Difference]: Finished difference Result 32906 states and 45382 transitions. [2019-10-15 01:17:15,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:17:15,342 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 221 [2019-10-15 01:17:15,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:15,435 INFO L225 Difference]: With dead ends: 32906 [2019-10-15 01:17:15,436 INFO L226 Difference]: Without dead ends: 23146 [2019-10-15 01:17:15,468 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:17:15,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23146 states. [2019-10-15 01:17:17,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23146 to 22773. [2019-10-15 01:17:17,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22773 states. [2019-10-15 01:17:17,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22773 states to 22773 states and 31350 transitions. [2019-10-15 01:17:17,465 INFO L78 Accepts]: Start accepts. Automaton has 22773 states and 31350 transitions. Word has length 221 [2019-10-15 01:17:17,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:17,465 INFO L462 AbstractCegarLoop]: Abstraction has 22773 states and 31350 transitions. [2019-10-15 01:17:17,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:17:17,466 INFO L276 IsEmpty]: Start isEmpty. Operand 22773 states and 31350 transitions. [2019-10-15 01:17:17,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-15 01:17:17,500 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:17,501 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:17,501 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:17,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:17,502 INFO L82 PathProgramCache]: Analyzing trace with hash 880838603, now seen corresponding path program 1 times [2019-10-15 01:17:17,502 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:17,502 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082720269] [2019-10-15 01:17:17,502 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:17,502 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:17,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:17,757 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-15 01:17:17,757 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082720269] [2019-10-15 01:17:17,757 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:17,757 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:17:17,757 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718448233] [2019-10-15 01:17:17,758 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:17:17,758 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:17,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:17:17,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:17:17,759 INFO L87 Difference]: Start difference. First operand 22773 states and 31350 transitions. Second operand 15 states. [2019-10-15 01:17:20,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:20,636 INFO L93 Difference]: Finished difference Result 32120 states and 44500 transitions. [2019-10-15 01:17:20,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-15 01:17:20,637 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 221 [2019-10-15 01:17:20,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:20,743 INFO L225 Difference]: With dead ends: 32120 [2019-10-15 01:17:20,743 INFO L226 Difference]: Without dead ends: 24947 [2019-10-15 01:17:20,766 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=1035, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:17:20,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24947 states. [2019-10-15 01:17:21,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24947 to 23709. [2019-10-15 01:17:21,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23709 states. [2019-10-15 01:17:21,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23709 states to 23709 states and 32854 transitions. [2019-10-15 01:17:21,551 INFO L78 Accepts]: Start accepts. Automaton has 23709 states and 32854 transitions. Word has length 221 [2019-10-15 01:17:21,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:21,552 INFO L462 AbstractCegarLoop]: Abstraction has 23709 states and 32854 transitions. [2019-10-15 01:17:21,552 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:17:21,552 INFO L276 IsEmpty]: Start isEmpty. Operand 23709 states and 32854 transitions. [2019-10-15 01:17:21,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-15 01:17:21,599 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:21,599 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:21,599 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:21,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:21,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1913967346, now seen corresponding path program 1 times [2019-10-15 01:17:21,600 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:21,600 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965113798] [2019-10-15 01:17:21,600 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:21,601 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:21,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:21,793 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 01:17:21,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965113798] [2019-10-15 01:17:21,793 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:21,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:17:21,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989251414] [2019-10-15 01:17:21,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:17:21,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:21,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:17:21,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:17:21,796 INFO L87 Difference]: Start difference. First operand 23709 states and 32854 transitions. Second operand 7 states.