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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:40:25,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:40:25,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:40:25,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:40:25,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:40:25,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:40:25,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:40:25,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:40:25,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:40:25,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:40:25,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:40:25,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:40:25,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:40:25,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:40:25,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:40:25,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:40:25,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:40:25,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:40:25,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:40:25,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:40:25,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:40:25,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:40:25,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:40:25,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:40:25,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:40:25,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:40:25,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:40:25,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:40:25,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:40:25,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:40:25,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:40:25,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:40:25,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:40:25,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:40:25,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:40:25,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:40:25,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:40:25,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:40:25,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:40:25,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:40:25,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:40:25,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:40:25,418 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:40:25,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:40:25,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:40:25,419 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:40:25,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:40:25,420 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:40:25,421 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:40:25,421 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:40:25,421 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:40:25,421 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:40:25,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:40:25,422 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:40:25,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:40:25,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:40:25,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:40:25,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:40:25,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:40:25,424 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:40:25,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:40:25,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:40:25,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:40:25,424 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:40:25,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:40:25,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:40:25,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:40:25,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:40:25,425 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:40:25,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:40:25,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:40:25,426 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:40:25,472 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:40:25,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:40:25,493 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:40:25,495 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:40:25,495 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:40:25,496 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c [2019-09-10 02:40:25,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa5054e29/18515dd24aff4774a6cebce18d32efd9/FLAG113617200 [2019-09-10 02:40:26,169 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:40:26,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c [2019-09-10 02:40:26,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa5054e29/18515dd24aff4774a6cebce18d32efd9/FLAG113617200 [2019-09-10 02:40:26,319 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa5054e29/18515dd24aff4774a6cebce18d32efd9 [2019-09-10 02:40:26,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:40:26,333 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:40:26,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:26,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:40:26,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:40:26,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:26" (1/1) ... [2019-09-10 02:40:26,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e88ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:26, skipping insertion in model container [2019-09-10 02:40:26,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:26" (1/1) ... [2019-09-10 02:40:26,352 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:40:26,452 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:40:27,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:27,274 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:40:27,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:27,524 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:40:27,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:27 WrapperNode [2019-09-10 02:40:27,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:27,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:40:27,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:40:27,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:40:27,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:27" (1/1) ... [2019-09-10 02:40:27,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:27" (1/1) ... [2019-09-10 02:40:27,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:27" (1/1) ... [2019-09-10 02:40:27,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:27" (1/1) ... [2019-09-10 02:40:27,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:27" (1/1) ... [2019-09-10 02:40:27,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:27" (1/1) ... [2019-09-10 02:40:27,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:27" (1/1) ... [2019-09-10 02:40:27,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:40:27,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:40:27,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:40:27,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:40:27,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:27" (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 [2019-09-10 02:40:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:40:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:40:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:40:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:40:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:40:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-09-10 02:40:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:40:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:40:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:40:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:40:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-10 02:40:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:40:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:40:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:40:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:40:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:40:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:40:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:40:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-10 02:40:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-10 02:40:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-10 02:40:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-10 02:40:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-10 02:40:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-10 02:40:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-10 02:40:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-10 02:40:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-10 02:40:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-10 02:40:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:40:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:40:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-10 02:40:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-09-10 02:40:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:40:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:40:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:40:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:40:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:40:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:40:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:40:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:40:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:40:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:40:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:40:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:40:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:40:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:40:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:40:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:40:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:40:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:40:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:40:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:40:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:40:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:40:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:40:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:40:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:40:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:40:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:40:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:40:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:40:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:40:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:40:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:40:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:40:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:40:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:40:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:40:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:40:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:40:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:40:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:40:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:40:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:40:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:40:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:40:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:40:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:40:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:40:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:40:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:40:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:40:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:40:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:40:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:40:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:40:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:40:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:40:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-10 02:40:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:40:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:40:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-10 02:40:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-09-10 02:40:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:40:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:40:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:40:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:40:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:40:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:40:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:40:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-10 02:40:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-10 02:40:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-10 02:40:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-10 02:40:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-10 02:40:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:40:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:40:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:40:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:40:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:40:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:40:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:40:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:40:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:40:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:40:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:40:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:40:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:40:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:40:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:40:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:40:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:40:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:40:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:40:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:40:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-09-10 02:40:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:40:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:40:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:40:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:40:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:40:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:40:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:40:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:40:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:40:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:40:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:40:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:40:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:40:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:40:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:40:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:40:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:40:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:40:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-10 02:40:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:40:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:40:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:40:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:40:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:40:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:40:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:40:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:40:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-10 02:40:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-10 02:40:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-10 02:40:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-10 02:40:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-10 02:40:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-10 02:40:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-10 02:40:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-10 02:40:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-10 02:40:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-10 02:40:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-10 02:40:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:40:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:40:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:40:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:40:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:40:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:40:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:40:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:40:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:40:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:40:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-10 02:40:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-09-10 02:40:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:40:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:40:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:40:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:40:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:40:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:40:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:40:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:40:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:40:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:40:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:40:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:40:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:40:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:40:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:40:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:40:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:40:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:40:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:40:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:40:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:40:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:40:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:40:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:40:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:40:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:40:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:40:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:40:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:40:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:40:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:40:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:40:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:40:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:40:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:40:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:40:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:40:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:40:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:40:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-10 02:40:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-10 02:40:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-10 02:40:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-10 02:40:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-10 02:40:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-10 02:40:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-09-10 02:40:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:40:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:40:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:40:29,766 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:40:29,767 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:40:29,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:29 BoogieIcfgContainer [2019-09-10 02:40:29,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:40:29,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:40:29,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:40:29,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:40:29,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:40:26" (1/3) ... [2019-09-10 02:40:29,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701d887c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:29, skipping insertion in model container [2019-09-10 02:40:29,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:27" (2/3) ... [2019-09-10 02:40:29,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701d887c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:29, skipping insertion in model container [2019-09-10 02:40:29,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:29" (3/3) ... [2019-09-10 02:40:29,777 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product19.cil.c [2019-09-10 02:40:29,789 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:40:29,801 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:40:29,819 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:40:29,854 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:40:29,854 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:40:29,854 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:40:29,855 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:40:29,855 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:40:29,855 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:40:29,855 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:40:29,855 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:40:29,896 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states. [2019-09-10 02:40:29,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-09-10 02:40:29,943 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:29,945 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:29,947 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:29,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:29,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1324397403, now seen corresponding path program 1 times [2019-09-10 02:40:29,961 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:30,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:30,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:30,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:30,034 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:30,676 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:30,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:30,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:40:30,679 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:30,687 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:40:30,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:40:30,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:30,708 INFO L87 Difference]: Start difference. First operand 496 states. Second operand 2 states. [2019-09-10 02:40:30,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:30,767 INFO L93 Difference]: Finished difference Result 482 states and 635 transitions. [2019-09-10 02:40:30,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:40:30,768 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 179 [2019-09-10 02:40:30,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:30,791 INFO L225 Difference]: With dead ends: 482 [2019-09-10 02:40:30,791 INFO L226 Difference]: Without dead ends: 473 [2019-09-10 02:40:30,793 INFO L628 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 [2019-09-10 02:40:30,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-09-10 02:40:30,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2019-09-10 02:40:30,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2019-09-10 02:40:30,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 624 transitions. [2019-09-10 02:40:30,883 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 624 transitions. Word has length 179 [2019-09-10 02:40:30,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:30,885 INFO L475 AbstractCegarLoop]: Abstraction has 473 states and 624 transitions. [2019-09-10 02:40:30,886 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:40:30,886 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 624 transitions. [2019-09-10 02:40:30,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-09-10 02:40:30,891 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:30,891 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:30,892 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:30,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:30,893 INFO L82 PathProgramCache]: Analyzing trace with hash -703879322, now seen corresponding path program 1 times [2019-09-10 02:40:30,893 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:30,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:30,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:30,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:30,895 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:31,177 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:31,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:31,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:31,178 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:31,182 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:31,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:31,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:31,183 INFO L87 Difference]: Start difference. First operand 473 states and 624 transitions. Second operand 3 states. [2019-09-10 02:40:31,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:31,238 INFO L93 Difference]: Finished difference Result 476 states and 627 transitions. [2019-09-10 02:40:31,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:31,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-09-10 02:40:31,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:31,245 INFO L225 Difference]: With dead ends: 476 [2019-09-10 02:40:31,245 INFO L226 Difference]: Without dead ends: 476 [2019-09-10 02:40:31,246 INFO L628 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 [2019-09-10 02:40:31,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2019-09-10 02:40:31,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 475. [2019-09-10 02:40:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2019-09-10 02:40:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 626 transitions. [2019-09-10 02:40:31,282 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 626 transitions. Word has length 180 [2019-09-10 02:40:31,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:31,283 INFO L475 AbstractCegarLoop]: Abstraction has 475 states and 626 transitions. [2019-09-10 02:40:31,283 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:31,286 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 626 transitions. [2019-09-10 02:40:31,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-09-10 02:40:31,294 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:31,295 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-09-10 02:40:31,295 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:31,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:31,295 INFO L82 PathProgramCache]: Analyzing trace with hash 655198354, now seen corresponding path program 1 times [2019-09-10 02:40:31,296 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:31,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:31,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:31,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:31,297 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:31,517 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:31,518 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:31,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:31,518 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:31,518 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:31,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:31,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:31,519 INFO L87 Difference]: Start difference. First operand 475 states and 626 transitions. Second operand 3 states. [2019-09-10 02:40:31,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:31,569 INFO L93 Difference]: Finished difference Result 516 states and 696 transitions. [2019-09-10 02:40:31,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:31,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-09-10 02:40:31,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:31,576 INFO L225 Difference]: With dead ends: 516 [2019-09-10 02:40:31,576 INFO L226 Difference]: Without dead ends: 516 [2019-09-10 02:40:31,577 INFO L628 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 [2019-09-10 02:40:31,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2019-09-10 02:40:31,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 515. [2019-09-10 02:40:31,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2019-09-10 02:40:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 695 transitions. [2019-09-10 02:40:31,617 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 695 transitions. Word has length 186 [2019-09-10 02:40:31,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:31,618 INFO L475 AbstractCegarLoop]: Abstraction has 515 states and 695 transitions. [2019-09-10 02:40:31,618 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:31,619 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 695 transitions. [2019-09-10 02:40:31,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-09-10 02:40:31,627 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:31,630 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-09-10 02:40:31,630 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:31,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:31,630 INFO L82 PathProgramCache]: Analyzing trace with hash 833813007, now seen corresponding path program 1 times [2019-09-10 02:40:31,631 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:31,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:31,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:31,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:31,632 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:31,883 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-10 02:40:31,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:31,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:40:31,884 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:31,885 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:40:31,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:40:31,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:40:31,886 INFO L87 Difference]: Start difference. First operand 515 states and 695 transitions. Second operand 8 states. [2019-09-10 02:40:31,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:31,974 INFO L93 Difference]: Finished difference Result 515 states and 694 transitions. [2019-09-10 02:40:31,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:40:31,975 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2019-09-10 02:40:31,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:31,984 INFO L225 Difference]: With dead ends: 515 [2019-09-10 02:40:31,986 INFO L226 Difference]: Without dead ends: 515 [2019-09-10 02:40:31,987 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:40:31,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2019-09-10 02:40:32,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2019-09-10 02:40:32,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2019-09-10 02:40:32,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 694 transitions. [2019-09-10 02:40:32,024 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 694 transitions. Word has length 187 [2019-09-10 02:40:32,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:32,026 INFO L475 AbstractCegarLoop]: Abstraction has 515 states and 694 transitions. [2019-09-10 02:40:32,026 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:40:32,026 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 694 transitions. [2019-09-10 02:40:32,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-09-10 02:40:32,032 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:32,032 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-09-10 02:40:32,033 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:32,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:32,033 INFO L82 PathProgramCache]: Analyzing trace with hash 2036488964, now seen corresponding path program 1 times [2019-09-10 02:40:32,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:32,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:32,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:32,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:32,037 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:32,373 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-10 02:40:32,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:32,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:40:32,375 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:32,376 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:40:32,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:40:32,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:40:32,377 INFO L87 Difference]: Start difference. First operand 515 states and 694 transitions. Second operand 7 states. [2019-09-10 02:40:35,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:35,141 INFO L93 Difference]: Finished difference Result 766 states and 1008 transitions. [2019-09-10 02:40:35,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:40:35,141 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2019-09-10 02:40:35,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:35,147 INFO L225 Difference]: With dead ends: 766 [2019-09-10 02:40:35,147 INFO L226 Difference]: Without dead ends: 758 [2019-09-10 02:40:35,147 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:40:35,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2019-09-10 02:40:35,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 749. [2019-09-10 02:40:35,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-09-10 02:40:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 988 transitions. [2019-09-10 02:40:35,179 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 988 transitions. Word has length 194 [2019-09-10 02:40:35,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:35,180 INFO L475 AbstractCegarLoop]: Abstraction has 749 states and 988 transitions. [2019-09-10 02:40:35,180 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:40:35,180 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 988 transitions. [2019-09-10 02:40:35,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-09-10 02:40:35,184 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:35,184 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-09-10 02:40:35,184 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:35,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:35,185 INFO L82 PathProgramCache]: Analyzing trace with hash 820930343, now seen corresponding path program 1 times [2019-09-10 02:40:35,185 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:35,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:35,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:35,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:35,186 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:35,719 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-10 02:40:35,720 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:35,720 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-09-10 02:40:35,720 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:35,721 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-09-10 02:40:35,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-09-10 02:40:35,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-09-10 02:40:35,722 INFO L87 Difference]: Start difference. First operand 749 states and 988 transitions. Second operand 24 states. [2019-09-10 02:40:36,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:36,394 INFO L93 Difference]: Finished difference Result 839 states and 1098 transitions. [2019-09-10 02:40:36,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-09-10 02:40:36,395 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 195 [2019-09-10 02:40:36,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:36,400 INFO L225 Difference]: With dead ends: 839 [2019-09-10 02:40:36,401 INFO L226 Difference]: Without dead ends: 793 [2019-09-10 02:40:36,402 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=1037, Unknown=0, NotChecked=0, Total=1122 [2019-09-10 02:40:36,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-09-10 02:40:36,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 789. [2019-09-10 02:40:36,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-09-10 02:40:36,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1036 transitions. [2019-09-10 02:40:36,435 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1036 transitions. Word has length 195 [2019-09-10 02:40:36,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:36,437 INFO L475 AbstractCegarLoop]: Abstraction has 789 states and 1036 transitions. [2019-09-10 02:40:36,438 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-09-10 02:40:36,438 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1036 transitions. [2019-09-10 02:40:36,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-09-10 02:40:36,442 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:36,443 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:36,443 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:36,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:36,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1287311709, now seen corresponding path program 1 times [2019-09-10 02:40:36,444 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:36,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:36,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:36,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:36,451 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:36,693 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-09-10 02:40:36,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:36,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:40:36,694 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:36,695 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:40:36,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:40:36,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:40:36,697 INFO L87 Difference]: Start difference. First operand 789 states and 1036 transitions. Second operand 8 states. [2019-09-10 02:40:42,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:42,002 INFO L93 Difference]: Finished difference Result 1847 states and 2384 transitions. [2019-09-10 02:40:42,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 02:40:42,003 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 226 [2019-09-10 02:40:42,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:42,015 INFO L225 Difference]: With dead ends: 1847 [2019-09-10 02:40:42,015 INFO L226 Difference]: Without dead ends: 1847 [2019-09-10 02:40:42,016 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:40:42,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2019-09-10 02:40:42,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1833. [2019-09-10 02:40:42,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1833 states. [2019-09-10 02:40:42,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2372 transitions. [2019-09-10 02:40:42,086 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2372 transitions. Word has length 226 [2019-09-10 02:40:42,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:42,088 INFO L475 AbstractCegarLoop]: Abstraction has 1833 states and 2372 transitions. [2019-09-10 02:40:42,088 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:40:42,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2372 transitions. [2019-09-10 02:40:42,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-09-10 02:40:42,094 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:42,095 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:42,095 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:42,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:42,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1051299991, now seen corresponding path program 1 times [2019-09-10 02:40:42,096 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:42,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:42,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:42,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:42,098 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:42,543 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-09-10 02:40:42,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:42,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-10 02:40:42,544 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:42,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 02:40:42,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 02:40:42,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-09-10 02:40:42,546 INFO L87 Difference]: Start difference. First operand 1833 states and 2372 transitions. Second operand 18 states. [2019-09-10 02:40:42,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:42,997 INFO L93 Difference]: Finished difference Result 1383 states and 1808 transitions. [2019-09-10 02:40:42,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-10 02:40:42,998 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 227 [2019-09-10 02:40:42,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:43,011 INFO L225 Difference]: With dead ends: 1383 [2019-09-10 02:40:43,011 INFO L226 Difference]: Without dead ends: 1379 [2019-09-10 02:40:43,012 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-09-10 02:40:43,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2019-09-10 02:40:43,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1373. [2019-09-10 02:40:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1373 states. [2019-09-10 02:40:43,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1798 transitions. [2019-09-10 02:40:43,079 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1798 transitions. Word has length 227 [2019-09-10 02:40:43,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:43,080 INFO L475 AbstractCegarLoop]: Abstraction has 1373 states and 1798 transitions. [2019-09-10 02:40:43,080 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 02:40:43,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1798 transitions. [2019-09-10 02:40:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-09-10 02:40:43,091 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:43,091 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:43,092 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:43,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:43,092 INFO L82 PathProgramCache]: Analyzing trace with hash 228824622, now seen corresponding path program 1 times [2019-09-10 02:40:43,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:43,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:43,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:43,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:43,094 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:43,359 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-09-10 02:40:43,360 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:40:43,360 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:40:43,361 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2019-09-10 02:40:43,364 INFO L207 CegarAbsIntRunner]: [44], [57], [59], [62], [64], [66], [69], [93], [96], [106], [107], [110], [119], [144], [160], [163], [177], [178], [180], [290], [292], [296], [299], [300], [301], [304], [310], [332], [335], [338], [347], [358], [359], [360], [362], [363], [366], [376], [377], [407], [409], [412], [414], [417], [423], [425], [428], [430], [432], [435], [443], [473], [476], [482], [632], [634], [635], [636], [644], [647], [653], [674], [677], [691], [720], [721], [722], [725], [731], [732], [734], [737], [740], [746], [747], [749], [753], [756], [770], [774], [777], [795], [798], [830], [836], [845], [849], [851], [853], [856], [863], [870], [873], [1134], [1206], [1210], [1211], [1214], [1220], [1221], [1224], [1225], [1228], [1231], [1262], [1263], [1265], [1378], [1381], [1395], [1401], [1404], [1413], [1414], [1417], [1426], [1467], [1470], [1479], [1602], [1604], [1606], [1608], [1609], [1621], [1629], [1630], [1631], [1632], [1633], [1634], [1635], [1647], [1657], [1658], [1659], [1660], [1661], [1662], [1665], [1666], [1667], [1668], [1669], [1671], [1672], [1673], [1674], [1681], [1687], [1688], [1689], [1695], [1696], [1697], [1698], [1699], [1700], [1701], [1702], [1703], [1704], [1705], [1706], [1707], [1708], [1729], [1730], [1745], [1746], [1747], [1749], [1750], [1751], [1752], [1753], [1754], [1755], [1756], [1757], [1758], [1759], [1760], [1761], [1762], [1763], [1765], [1766], [1767], [1768], [1783], [1784], [1785], [1807], [1809], [1810], [1811], [1813], [1814], [1815], [1816], [1817], [1818], [1819], [1831], [1832], [1833], [1834], [1835], [1836], [1837], [1838], [1839] [2019-09-10 02:40:43,435 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:40:43,436 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:40:43,577 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:40:43,579 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 187 root evaluator evaluations with a maximum evaluation depth of 0. Performed 187 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 364 variables. [2019-09-10 02:40:43,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:43,584 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:40:43,668 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:40:43,668 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:40:43,680 INFO L420 sIntCurrentIteration]: We unified 235 AI predicates to 235 [2019-09-10 02:40:43,680 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:40:43,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:40:43,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:40:43,682 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:43,682 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:40:43,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:40:43,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:43,683 INFO L87 Difference]: Start difference. First operand 1373 states and 1798 transitions. Second operand 2 states. [2019-09-10 02:40:43,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:43,684 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:40:43,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:40:43,684 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 236 [2019-09-10 02:40:43,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:43,685 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:40:43,685 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:40:43,685 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:43,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:40:43,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:40:43,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:40:43,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:40:43,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2019-09-10 02:40:43,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:43,686 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:40:43,686 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:40:43,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:40:43,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:40:43,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:40:43 BoogieIcfgContainer [2019-09-10 02:40:43,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:40:43,695 INFO L168 Benchmark]: Toolchain (without parser) took 17361.49 ms. Allocated memory was 134.2 MB in the beginning and 522.7 MB in the end (delta: 388.5 MB). Free memory was 88.2 MB in the beginning and 204.4 MB in the end (delta: -116.1 MB). Peak memory consumption was 272.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:43,696 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory is still 108.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:40:43,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1192.54 ms. Allocated memory was 134.2 MB in the beginning and 202.9 MB in the end (delta: 68.7 MB). Free memory was 88.2 MB in the beginning and 134.2 MB in the end (delta: -46.0 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:43,700 INFO L168 Benchmark]: Boogie Preprocessor took 228.91 ms. Allocated memory is still 202.9 MB. Free memory was 134.2 MB in the beginning and 125.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:43,701 INFO L168 Benchmark]: RCFGBuilder took 2012.66 ms. Allocated memory was 202.9 MB in the beginning and 258.5 MB in the end (delta: 55.6 MB). Free memory was 125.5 MB in the beginning and 161.0 MB in the end (delta: -35.5 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:43,705 INFO L168 Benchmark]: TraceAbstraction took 13922.40 ms. Allocated memory was 258.5 MB in the beginning and 522.7 MB in the end (delta: 264.2 MB). Free memory was 161.0 MB in the beginning and 204.4 MB in the end (delta: -43.3 MB). Peak memory consumption was 220.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:43,712 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory is still 108.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1192.54 ms. Allocated memory was 134.2 MB in the beginning and 202.9 MB in the end (delta: 68.7 MB). Free memory was 88.2 MB in the beginning and 134.2 MB in the end (delta: -46.0 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 228.91 ms. Allocated memory is still 202.9 MB. Free memory was 134.2 MB in the beginning and 125.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2012.66 ms. Allocated memory was 202.9 MB in the beginning and 258.5 MB in the end (delta: 55.6 MB). Free memory was 125.5 MB in the beginning and 161.0 MB in the end (delta: -35.5 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13922.40 ms. Allocated memory was 258.5 MB in the beginning and 522.7 MB in the end (delta: 264.2 MB). Free memory was 161.0 MB in the beginning and 204.4 MB in the end (delta: -43.3 MB). Peak memory consumption was 220.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 794]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 111 procedures, 750 locations, 1 error locations. SAFE Result, 13.8s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 9.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5178 SDtfs, 2328 SDslu, 29552 SDs, 0 SdLazy, 7150 SolverSat, 990 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 362 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1833occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.029787234042553 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 35 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1810 NumberOfCodeBlocks, 1810 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1801 ConstructedInterpolants, 0 QuantifiedInterpolants, 491398 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 291/293 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...