java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:15:02,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:15:02,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:15:02,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:15:02,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:15:02,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:15:02,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:15:02,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:15:02,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:15:02,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:15:02,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:15:02,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:15:02,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:15:02,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:15:02,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:15:02,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:15:02,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:15:02,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:15:02,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:15:02,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:15:02,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:15:02,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:15:02,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:15:02,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:15:02,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:15:02,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:15:02,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:15:02,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:15:02,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:15:02,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:15:02,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:15:02,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:15:02,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:15:02,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:15:02,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:15:02,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:15:02,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:15:02,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:15:02,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:15:02,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:15:02,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:15:02,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:15:02,741 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:15:02,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:15:02,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:15:02,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:15:02,743 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:15:02,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:15:02,743 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:15:02,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:15:02,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:15:02,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:15:02,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:15:02,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:15:02,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:15:02,745 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:15:02,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:15:02,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:15:02,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:15:02,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:15:02,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:15:02,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:15:02,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:15:02,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:02,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:15:02,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:15:02,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:15:02,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:15:02,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:15:02,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:15:02,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:15:03,050 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:15:03,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:15:03,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:15:03,076 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:15:03,076 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:15:03,077 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product35.cil.c [2019-10-15 01:15:03,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed6c718d5/2a450e10a6204311bdf147877a1f56d0/FLAG376cf0687 [2019-10-15 01:15:03,748 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:15:03,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product35.cil.c [2019-10-15 01:15:03,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed6c718d5/2a450e10a6204311bdf147877a1f56d0/FLAG376cf0687 [2019-10-15 01:15:03,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed6c718d5/2a450e10a6204311bdf147877a1f56d0 [2019-10-15 01:15:04,000 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:15:04,001 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:15:04,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:04,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:15:04,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:15:04,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:03" (1/1) ... [2019-10-15 01:15:04,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40adc142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:04, skipping insertion in model container [2019-10-15 01:15:04,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:03" (1/1) ... [2019-10-15 01:15:04,014 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:15:04,089 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:15:04,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:04,808 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:15:04,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:05,048 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:15:05,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:05 WrapperNode [2019-10-15 01:15:05,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:05,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:15:05,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:15:05,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:15:05,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:05" (1/1) ... [2019-10-15 01:15:05,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:05" (1/1) ... [2019-10-15 01:15:05,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:05" (1/1) ... [2019-10-15 01:15:05,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:05" (1/1) ... [2019-10-15 01:15:05,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:05" (1/1) ... [2019-10-15 01:15:05,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:05" (1/1) ... [2019-10-15 01:15:05,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:05" (1/1) ... [2019-10-15 01:15:05,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:15:05,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:15:05,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:15:05,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:15:05,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:15:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:15:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:15:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:15:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:15:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:05,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:15:05,340 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:15:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:15:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:15:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:15:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:15:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:15:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:15:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:15:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:15:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:15:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:15:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:15:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:15:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:15:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:15:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:15:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:15:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:15:05,350 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:15:05,350 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:05,350 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:15:05,350 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:15:05,350 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:15:05,351 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:15:05,351 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:15:05,351 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:15:05,351 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:15:05,351 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:15:05,352 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:15:05,352 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:15:05,352 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:15:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:15:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:15:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:15:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:15:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:15:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:15:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:15:05,354 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:15:05,354 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:15:05,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:15:05,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:15:05,355 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:15:05,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:15:05,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:15:05,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:15:05,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:15:05,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:15:05,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:15:05,357 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:15:05,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:15:05,357 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:15:05,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:15:05,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:15:05,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:15:05,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:15:05,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:15:05,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:15:05,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:15:05,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:15:05,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:15:05,360 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:15:05,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:15:05,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:15:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:15:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:15:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:15:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:15:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:15:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:15:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:15:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:15:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:15:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:15:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:15:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:15:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:15:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:15:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:15:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:15:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:15:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:15:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:15:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:15:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:15:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:15:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:15:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:15:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:15:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:15:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:15:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:15:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:15:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:05,369 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:15:05,369 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:15:05,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:15:05,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:15:05,369 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:15:05,369 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:15:05,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:05,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:05,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:05,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:15:05,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:15:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:15:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:15:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:15:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:15:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:15:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:15:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:15:05,373 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:15:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:15:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:15:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:15:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:15:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:15:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:15:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:15:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:15:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:15:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:15:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:15:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:15:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:15:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:15:05,378 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:15:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:15:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:15:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:15:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:15:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:15:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:15:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:15:05,392 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:15:05,392 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:15:05,393 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:15:05,393 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:15:05,393 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:15:05,393 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:15:05,394 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:15:05,394 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:15:05,394 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:15:05,394 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:15:05,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:15:05,395 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:15:05,395 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:15:05,395 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:15:05,396 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:15:05,396 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:15:05,396 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:15:05,396 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:15:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:15:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:15:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:15:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:15:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:15:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:15:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:15:05,399 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:15:05,399 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:15:05,399 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:15:05,399 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:15:05,400 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:15:05,400 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:15:05,400 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:15:05,400 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:15:05,400 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:15:05,401 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:15:05,401 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:15:05,401 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:15:05,401 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:15:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:15:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:15:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:15:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:15:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:15:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:15:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:15:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:15:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:15:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:15:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:15:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:15:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:15:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:15:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:15:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:15:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:15:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:15:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:15:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:15:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:15:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:15:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:15:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:15:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:15:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:15:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:15:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:15:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:15:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:15:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:15:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:15:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:15:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:15:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:15:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:15:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:15:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:15:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:15:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:15:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:15:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:15:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:15:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:15:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:15:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:15:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:15:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:15:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:15:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:15:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:15:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:15:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:15:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:15:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:15:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:15:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:15:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:15:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:15:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:15:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:15:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:15:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:15:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:15:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:15:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:15:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:15:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:15:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:15:07,926 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:15:07,927 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:15:07,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:07 BoogieIcfgContainer [2019-10-15 01:15:07,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:15:07,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:15:07,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:15:07,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:15:07,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:15:03" (1/3) ... [2019-10-15 01:15:07,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5743819c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:07, skipping insertion in model container [2019-10-15 01:15:07,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:05" (2/3) ... [2019-10-15 01:15:07,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5743819c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:07, skipping insertion in model container [2019-10-15 01:15:07,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:07" (3/3) ... [2019-10-15 01:15:07,936 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product35.cil.c [2019-10-15 01:15:07,946 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:15:07,956 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:15:07,967 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:15:08,005 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:15:08,005 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:15:08,005 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:15:08,005 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:15:08,005 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:15:08,005 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:15:08,006 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:15:08,006 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:15:08,040 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states. [2019-10-15 01:15:08,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:15:08,067 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:08,068 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:08,070 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:08,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:08,074 INFO L82 PathProgramCache]: Analyzing trace with hash -743915879, now seen corresponding path program 1 times [2019-10-15 01:15:08,083 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:08,084 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664670789] [2019-10-15 01:15:08,084 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:08,084 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:08,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:08,771 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:15:08,772 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664670789] [2019-10-15 01:15:08,772 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:08,773 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:15:08,773 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938324637] [2019-10-15 01:15:08,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:15:08,781 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:08,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:15:08,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:08,796 INFO L87 Difference]: Start difference. First operand 695 states. Second operand 2 states. [2019-10-15 01:15:08,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:08,904 INFO L93 Difference]: Finished difference Result 1065 states and 1438 transitions. [2019-10-15 01:15:08,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:15:08,906 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 204 [2019-10-15 01:15:08,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:08,941 INFO L225 Difference]: With dead ends: 1065 [2019-10-15 01:15:08,941 INFO L226 Difference]: Without dead ends: 666 [2019-10-15 01:15:08,949 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:08,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2019-10-15 01:15:09,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2019-10-15 01:15:09,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2019-10-15 01:15:09,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 902 transitions. [2019-10-15 01:15:09,074 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 902 transitions. Word has length 204 [2019-10-15 01:15:09,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:09,076 INFO L462 AbstractCegarLoop]: Abstraction has 666 states and 902 transitions. [2019-10-15 01:15:09,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:15:09,076 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 902 transitions. [2019-10-15 01:15:09,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:15:09,088 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:09,089 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:09,092 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:09,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:09,092 INFO L82 PathProgramCache]: Analyzing trace with hash 880668841, now seen corresponding path program 1 times [2019-10-15 01:15:09,093 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:09,093 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379719537] [2019-10-15 01:15:09,093 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:09,094 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:09,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:15:09,451 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379719537] [2019-10-15 01:15:09,451 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:09,452 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:09,452 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608392480] [2019-10-15 01:15:09,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:09,463 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:09,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:09,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:09,464 INFO L87 Difference]: Start difference. First operand 666 states and 902 transitions. Second operand 3 states. [2019-10-15 01:15:09,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:09,582 INFO L93 Difference]: Finished difference Result 1048 states and 1398 transitions. [2019-10-15 01:15:09,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:09,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-15 01:15:09,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:09,596 INFO L225 Difference]: With dead ends: 1048 [2019-10-15 01:15:09,597 INFO L226 Difference]: Without dead ends: 669 [2019-10-15 01:15:09,600 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:09,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2019-10-15 01:15:09,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 668. [2019-10-15 01:15:09,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-10-15 01:15:09,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 904 transitions. [2019-10-15 01:15:09,690 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 904 transitions. Word has length 205 [2019-10-15 01:15:09,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:09,693 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 904 transitions. [2019-10-15 01:15:09,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:09,694 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 904 transitions. [2019-10-15 01:15:09,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-15 01:15:09,703 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:09,704 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:09,704 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:09,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:09,705 INFO L82 PathProgramCache]: Analyzing trace with hash -293016614, now seen corresponding path program 1 times [2019-10-15 01:15:09,705 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:09,705 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308843164] [2019-10-15 01:15:09,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:09,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:09,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:10,063 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:15:10,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308843164] [2019-10-15 01:15:10,064 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:10,064 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:10,064 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797053297] [2019-10-15 01:15:10,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:10,068 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:10,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:10,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:10,069 INFO L87 Difference]: Start difference. First operand 668 states and 904 transitions. Second operand 3 states. [2019-10-15 01:15:10,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:10,122 INFO L93 Difference]: Finished difference Result 1316 states and 1812 transitions. [2019-10-15 01:15:10,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:10,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2019-10-15 01:15:10,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:10,128 INFO L225 Difference]: With dead ends: 1316 [2019-10-15 01:15:10,128 INFO L226 Difference]: Without dead ends: 713 [2019-10-15 01:15:10,131 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:10,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2019-10-15 01:15:10,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 712. [2019-10-15 01:15:10,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2019-10-15 01:15:10,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 979 transitions. [2019-10-15 01:15:10,169 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 979 transitions. Word has length 217 [2019-10-15 01:15:10,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:10,171 INFO L462 AbstractCegarLoop]: Abstraction has 712 states and 979 transitions. [2019-10-15 01:15:10,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:10,173 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 979 transitions. [2019-10-15 01:15:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-15 01:15:10,180 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:10,180 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:10,180 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:10,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:10,181 INFO L82 PathProgramCache]: Analyzing trace with hash 373909830, now seen corresponding path program 1 times [2019-10-15 01:15:10,181 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:10,181 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346714247] [2019-10-15 01:15:10,181 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:10,181 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:10,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:10,341 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:15:10,341 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346714247] [2019-10-15 01:15:10,341 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:10,342 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:10,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786122253] [2019-10-15 01:15:10,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:10,343 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:10,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:10,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:10,343 INFO L87 Difference]: Start difference. First operand 712 states and 979 transitions. Second operand 3 states. [2019-10-15 01:15:10,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:10,389 INFO L93 Difference]: Finished difference Result 1445 states and 2032 transitions. [2019-10-15 01:15:10,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:10,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2019-10-15 01:15:10,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:10,396 INFO L225 Difference]: With dead ends: 1445 [2019-10-15 01:15:10,397 INFO L226 Difference]: Without dead ends: 798 [2019-10-15 01:15:10,400 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:10,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2019-10-15 01:15:10,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 797. [2019-10-15 01:15:10,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2019-10-15 01:15:10,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1123 transitions. [2019-10-15 01:15:10,437 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1123 transitions. Word has length 218 [2019-10-15 01:15:10,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:10,437 INFO L462 AbstractCegarLoop]: Abstraction has 797 states and 1123 transitions. [2019-10-15 01:15:10,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:10,438 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1123 transitions. [2019-10-15 01:15:10,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-15 01:15:10,445 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:10,446 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:10,446 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:10,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:10,447 INFO L82 PathProgramCache]: Analyzing trace with hash -2072189759, now seen corresponding path program 1 times [2019-10-15 01:15:10,447 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:10,447 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879113192] [2019-10-15 01:15:10,447 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:10,447 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:10,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:11,000 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:11,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879113192] [2019-10-15 01:15:11,001 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575461270] [2019-10-15 01:15:11,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:11,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 3276 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:11,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:15:12,105 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:12,590 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:12,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:12,787 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:12,946 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:12,947 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:12,947 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19, 9] total 32 [2019-10-15 01:15:12,947 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771394766] [2019-10-15 01:15:12,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:15:12,948 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:12,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:15:12,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:15:12,950 INFO L87 Difference]: Start difference. First operand 797 states and 1123 transitions. Second operand 9 states. [2019-10-15 01:15:15,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:15,691 INFO L93 Difference]: Finished difference Result 1572 states and 2226 transitions. [2019-10-15 01:15:15,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:15:15,692 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 221 [2019-10-15 01:15:15,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:15,698 INFO L225 Difference]: With dead ends: 1572 [2019-10-15 01:15:15,698 INFO L226 Difference]: Without dead ends: 811 [2019-10-15 01:15:15,701 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 431 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=107, Invalid=1083, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:15:15,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2019-10-15 01:15:15,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 811. [2019-10-15 01:15:15,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2019-10-15 01:15:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1141 transitions. [2019-10-15 01:15:15,737 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1141 transitions. Word has length 221 [2019-10-15 01:15:15,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:15,738 INFO L462 AbstractCegarLoop]: Abstraction has 811 states and 1141 transitions. [2019-10-15 01:15:15,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:15:15,738 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1141 transitions. [2019-10-15 01:15:15,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-15 01:15:15,743 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:15,743 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:15,952 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:15,952 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:15,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:15,953 INFO L82 PathProgramCache]: Analyzing trace with hash 619120565, now seen corresponding path program 1 times [2019-10-15 01:15:15,953 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:15,953 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392844059] [2019-10-15 01:15:15,953 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:15,953 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:15,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:16,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392844059] [2019-10-15 01:15:16,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510518564] [2019-10-15 01:15:16,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:17,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 3277 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:15:17,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:15:17,498 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:17,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:17,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:18,007 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:18,008 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:18,008 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19, 7] total 28 [2019-10-15 01:15:18,008 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657121645] [2019-10-15 01:15:18,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:18,009 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:18,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:18,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:18,010 INFO L87 Difference]: Start difference. First operand 811 states and 1141 transitions. Second operand 7 states. [2019-10-15 01:15:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:20,019 INFO L93 Difference]: Finished difference Result 1573 states and 2232 transitions. [2019-10-15 01:15:20,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:15:20,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2019-10-15 01:15:20,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:20,025 INFO L225 Difference]: With dead ends: 1573 [2019-10-15 01:15:20,026 INFO L226 Difference]: Without dead ends: 813 [2019-10-15 01:15:20,031 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 438 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2019-10-15 01:15:20,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2019-10-15 01:15:20,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 813. [2019-10-15 01:15:20,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2019-10-15 01:15:20,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1144 transitions. [2019-10-15 01:15:20,071 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1144 transitions. Word has length 222 [2019-10-15 01:15:20,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:20,071 INFO L462 AbstractCegarLoop]: Abstraction has 813 states and 1144 transitions. [2019-10-15 01:15:20,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:20,072 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1144 transitions. [2019-10-15 01:15:20,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2019-10-15 01:15:20,079 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:20,080 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:20,291 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:20,292 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:20,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:20,292 INFO L82 PathProgramCache]: Analyzing trace with hash -609631398, now seen corresponding path program 1 times [2019-10-15 01:15:20,293 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:20,293 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107401963] [2019-10-15 01:15:20,294 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:20,294 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:20,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:20,776 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:20,777 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107401963] [2019-10-15 01:15:20,777 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212154896] [2019-10-15 01:15:20,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:21,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 3278 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:21,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:21,701 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:15:21,702 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:22,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:22,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:22,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:22,368 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:22,369 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:22,369 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [19] total 33 [2019-10-15 01:15:22,369 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351038101] [2019-10-15 01:15:22,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:15:22,371 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:22,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:15:22,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2019-10-15 01:15:22,372 INFO L87 Difference]: Start difference. First operand 813 states and 1144 transitions. Second operand 16 states. [2019-10-15 01:15:24,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:24,549 INFO L93 Difference]: Finished difference Result 1577 states and 2230 transitions. [2019-10-15 01:15:24,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:24,549 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 223 [2019-10-15 01:15:24,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:24,555 INFO L225 Difference]: With dead ends: 1577 [2019-10-15 01:15:24,556 INFO L226 Difference]: Without dead ends: 825 [2019-10-15 01:15:24,559 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 435 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 01:15:24,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2019-10-15 01:15:24,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 823. [2019-10-15 01:15:24,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2019-10-15 01:15:24,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1155 transitions. [2019-10-15 01:15:24,588 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1155 transitions. Word has length 223 [2019-10-15 01:15:24,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:24,589 INFO L462 AbstractCegarLoop]: Abstraction has 823 states and 1155 transitions. [2019-10-15 01:15:24,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:15:24,589 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1155 transitions. [2019-10-15 01:15:24,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-15 01:15:24,594 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:24,594 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:24,801 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:24,802 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:24,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:24,802 INFO L82 PathProgramCache]: Analyzing trace with hash 586173408, now seen corresponding path program 2 times [2019-10-15 01:15:24,802 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:24,802 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555123900] [2019-10-15 01:15:24,803 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:24,803 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:24,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:25,240 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:25,241 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555123900] [2019-10-15 01:15:25,241 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853010467] [2019-10-15 01:15:25,241 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:25,835 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:15:25,835 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:15:25,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 2533 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:15:25,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:26,035 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:26,036 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:26,698 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:26,698 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:26,699 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [19] total 31 [2019-10-15 01:15:26,699 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071701949] [2019-10-15 01:15:26,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:15:26,703 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:26,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:15:26,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:15:26,707 INFO L87 Difference]: Start difference. First operand 823 states and 1155 transitions. Second operand 14 states. [2019-10-15 01:15:29,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:29,953 INFO L93 Difference]: Finished difference Result 2767 states and 3920 transitions. [2019-10-15 01:15:29,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:15:29,953 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 224 [2019-10-15 01:15:29,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:29,970 INFO L225 Difference]: With dead ends: 2767 [2019-10-15 01:15:29,970 INFO L226 Difference]: Without dead ends: 2401 [2019-10-15 01:15:29,973 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 446 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2019-10-15 01:15:29,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2019-10-15 01:15:30,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 1986. [2019-10-15 01:15:30,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1986 states. [2019-10-15 01:15:30,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2880 transitions. [2019-10-15 01:15:30,087 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2880 transitions. Word has length 224 [2019-10-15 01:15:30,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:30,089 INFO L462 AbstractCegarLoop]: Abstraction has 1986 states and 2880 transitions. [2019-10-15 01:15:30,089 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:15:30,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2880 transitions. [2019-10-15 01:15:30,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-15 01:15:30,098 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:30,098 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:30,313 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:30,314 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:30,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:30,315 INFO L82 PathProgramCache]: Analyzing trace with hash 789276184, now seen corresponding path program 1 times [2019-10-15 01:15:30,315 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:30,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132475900] [2019-10-15 01:15:30,316 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:30,316 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:30,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:30,623 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:30,624 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132475900] [2019-10-15 01:15:30,625 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753995509] [2019-10-15 01:15:30,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:31,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 3280 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:31,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:31,533 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:15:31,533 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:31,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:31,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:31,995 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:32,124 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:32,124 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:32,125 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [15] total 28 [2019-10-15 01:15:32,125 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852731852] [2019-10-15 01:15:32,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:15:32,127 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:32,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:15:32,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:32,127 INFO L87 Difference]: Start difference. First operand 1986 states and 2880 transitions. Second operand 15 states. [2019-10-15 01:15:34,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:34,331 INFO L93 Difference]: Finished difference Result 3866 states and 5636 transitions. [2019-10-15 01:15:34,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:34,332 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 225 [2019-10-15 01:15:34,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:34,343 INFO L225 Difference]: With dead ends: 3866 [2019-10-15 01:15:34,343 INFO L226 Difference]: Without dead ends: 1992 [2019-10-15 01:15:34,349 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 439 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:15:34,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2019-10-15 01:15:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1986. [2019-10-15 01:15:34,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1986 states. [2019-10-15 01:15:34,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2878 transitions. [2019-10-15 01:15:34,431 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2878 transitions. Word has length 225 [2019-10-15 01:15:34,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:34,431 INFO L462 AbstractCegarLoop]: Abstraction has 1986 states and 2878 transitions. [2019-10-15 01:15:34,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:15:34,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2878 transitions. [2019-10-15 01:15:34,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-15 01:15:34,441 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:34,441 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:34,650 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:34,650 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:34,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:34,650 INFO L82 PathProgramCache]: Analyzing trace with hash -139161799, now seen corresponding path program 1 times [2019-10-15 01:15:34,651 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:34,651 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569576781] [2019-10-15 01:15:34,651 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:34,651 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:34,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:34,976 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:34,976 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569576781] [2019-10-15 01:15:34,977 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771541173] [2019-10-15 01:15:34,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:35,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 3281 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:15:35,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:15:35,762 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:36,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:36,070 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:36,197 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:15:36,197 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:36,197 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [15] total 25 [2019-10-15 01:15:36,198 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887802335] [2019-10-15 01:15:36,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:15:36,199 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:36,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:15:36,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:15:36,200 INFO L87 Difference]: Start difference. First operand 1986 states and 2878 transitions. Second operand 12 states.