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_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:15:00,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:15:00,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:15:00,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:15:00,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:15:00,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:15:00,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:15:00,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:15:00,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:15:00,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:15:00,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:15:00,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:15:00,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:15:00,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:15:00,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:15:00,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:15:00,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:15:00,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:15:00,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:15:00,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:15:00,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:15:00,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:15:00,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:15:00,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:15:00,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:15:00,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:15:00,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:15:00,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:15:00,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:15:00,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:15:00,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:15:00,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:15:01,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:15:01,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:15:01,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:15:01,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:15:01,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:15:01,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:15:01,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:15:01,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:15:01,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:15:01,007 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 01:15:01,039 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:15:01,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:15:01,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:15:01,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:15:01,044 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:15:01,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:15:01,045 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:15:01,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:15:01,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:15:01,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:15:01,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:15:01,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:15:01,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:15:01,046 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:15:01,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:15:01,047 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:15:01,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:15:01,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:15:01,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:15:01,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:15:01,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:15:01,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:01,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:15:01,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:15:01,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:15:01,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:15:01,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:15:01,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:15:01,049 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 01:15:01,330 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:15:01,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:15:01,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:15:01,354 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:15:01,354 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:15:01,355 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product34.cil.c [2019-10-15 01:15:01,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d1fa1cd/d12e7f6baf7f42fa8af48030e7783eb5/FLAG09ee1d4f0 [2019-10-15 01:15:02,047 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:15:02,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product34.cil.c [2019-10-15 01:15:02,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d1fa1cd/d12e7f6baf7f42fa8af48030e7783eb5/FLAG09ee1d4f0 [2019-10-15 01:15:02,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d1fa1cd/d12e7f6baf7f42fa8af48030e7783eb5 [2019-10-15 01:15:02,280 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:15:02,281 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:15:02,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:02,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:15:02,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:15:02,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:02" (1/1) ... [2019-10-15 01:15:02,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aca1f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:02, skipping insertion in model container [2019-10-15 01:15:02,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:02" (1/1) ... [2019-10-15 01:15:02,298 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:15:02,374 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:15:03,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:03,118 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:15:03,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:03,335 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:15:03,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:03 WrapperNode [2019-10-15 01:15:03,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:03,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:15:03,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:15:03,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:15:03,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:03" (1/1) ... [2019-10-15 01:15:03,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:03" (1/1) ... [2019-10-15 01:15:03,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:03" (1/1) ... [2019-10-15 01:15:03,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:03" (1/1) ... [2019-10-15 01:15:03,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:03" (1/1) ... [2019-10-15 01:15:03,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:03" (1/1) ... [2019-10-15 01:15:03,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:03" (1/1) ... [2019-10-15 01:15:03,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:15:03,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:15:03,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:15:03,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:15:03,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:03" (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 01:15:03,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:15:03,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:15:03,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:03,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:15:03,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:15:03,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:15:03,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:15:03,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:03,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:15:03,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:03,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:15:03,578 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:15:03,578 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:15:03,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:15:03,579 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:15:03,580 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:15:03,582 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:15:03,582 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:15:03,582 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:15:03,583 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:15:03,583 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:15:03,583 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:15:03,584 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:15:03,584 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:15:03,584 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:15:03,585 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:15:03,585 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:15:03,586 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:15:03,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:15:03,586 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:15:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:15:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:15:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:15:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:15:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:15:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:15:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:15:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:15:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:15:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:15:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:15:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:15:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:15:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:15:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:15:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:15:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:15:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:15:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:15:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:15:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:15:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:15:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:15:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:15:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:15:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:15:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:15:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:15:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:15:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:15:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:15:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:15:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:15:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:15:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:15:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:15:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:15:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:15:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:15:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:15:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:15:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:15:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:15:03,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:15:03,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:15:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:15:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:15:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:15:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:15:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:15:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:15:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:15:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:15:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:15:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:15:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:15:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:15:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:15:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:15:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:15:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:15:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:15:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:15:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:15:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:15:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:15:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:15:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:15:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:15:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:15:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:15:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:03,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:03,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:15:03,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:15:03,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:15:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:15:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:15:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:15:03,606 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:15:03,606 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:15:03,607 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:15:03,607 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:15:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:15:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:15:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:15:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:15:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:15:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:15:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:15:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:15:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:15:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:15:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:15:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:15:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:15:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:15:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:15:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:15:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:15:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:15:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:15:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:15:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:15:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:15:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:15:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:15:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:15:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:15:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:15:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:15:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:15:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:15:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:15:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:15:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:15:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:15:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:15:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:15:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:15:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:15:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:15:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:15:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:15:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:15:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:15:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:15:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:15:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:15:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:15:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:15:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:15:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:15:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:15:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:15:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:15:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:15:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:15:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:15:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:15:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:15:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:15:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:15:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:15:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:15:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:15:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:15:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:15:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:15:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:15:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:15:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:15:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:15:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:15:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:15:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:15:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:15:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:15:03,638 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:15:03,638 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:15:03,638 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:15:03,638 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:15:03,638 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:15:03,638 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:15:03,639 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:15:03,639 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:15:03,639 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:15:03,639 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:15:03,639 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:15:03,639 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:15:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:15:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:15:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:15:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:15:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:15:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:15:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:15:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:15:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:15:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:15:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:15:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:15:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:15:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:15:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:15:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:15:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:15:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:15:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:15:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:15:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:15:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:15:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:15:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:15:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:15:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:15:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:15:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:15:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:15:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:15:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:15:03,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:15:05,929 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:15:05,929 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:15:05,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:05 BoogieIcfgContainer [2019-10-15 01:15:05,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:15:05,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:15:05,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:15:05,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:15:05,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:15:02" (1/3) ... [2019-10-15 01:15:05,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3342f5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:05, skipping insertion in model container [2019-10-15 01:15:05,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:03" (2/3) ... [2019-10-15 01:15:05,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3342f5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:05, skipping insertion in model container [2019-10-15 01:15:05,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:05" (3/3) ... [2019-10-15 01:15:05,947 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product34.cil.c [2019-10-15 01:15:05,958 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:15:05,969 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:15:05,981 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:15:06,028 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:15:06,028 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:15:06,028 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:15:06,032 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:15:06,032 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:15:06,032 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:15:06,032 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:15:06,033 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:15:06,077 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states. [2019-10-15 01:15:06,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:15:06,115 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:06,116 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 01:15:06,119 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:06,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:06,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1487196270, now seen corresponding path program 1 times [2019-10-15 01:15:06,135 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:06,135 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247309899] [2019-10-15 01:15:06,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:06,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:06,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:06,858 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 01:15:06,859 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247309899] [2019-10-15 01:15:06,860 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:06,860 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:15:06,861 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883344336] [2019-10-15 01:15:06,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:15:06,868 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:06,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:15:06,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:06,886 INFO L87 Difference]: Start difference. First operand 663 states. Second operand 2 states. [2019-10-15 01:15:06,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:06,984 INFO L93 Difference]: Finished difference Result 1012 states and 1368 transitions. [2019-10-15 01:15:06,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:15:06,986 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 204 [2019-10-15 01:15:06,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:07,012 INFO L225 Difference]: With dead ends: 1012 [2019-10-15 01:15:07,013 INFO L226 Difference]: Without dead ends: 634 [2019-10-15 01:15:07,021 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 01:15:07,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2019-10-15 01:15:07,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2019-10-15 01:15:07,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2019-10-15 01:15:07,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 860 transitions. [2019-10-15 01:15:07,148 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 860 transitions. Word has length 204 [2019-10-15 01:15:07,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:07,151 INFO L462 AbstractCegarLoop]: Abstraction has 634 states and 860 transitions. [2019-10-15 01:15:07,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:15:07,151 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 860 transitions. [2019-10-15 01:15:07,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:15:07,159 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:07,160 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 01:15:07,160 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:07,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:07,161 INFO L82 PathProgramCache]: Analyzing trace with hash -782515477, now seen corresponding path program 1 times [2019-10-15 01:15:07,161 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:07,162 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611511150] [2019-10-15 01:15:07,162 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:07,162 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:07,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:07,561 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 01:15:07,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611511150] [2019-10-15 01:15:07,561 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:07,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:07,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032922822] [2019-10-15 01:15:07,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:07,567 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:07,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:07,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:07,568 INFO L87 Difference]: Start difference. First operand 634 states and 860 transitions. Second operand 3 states. [2019-10-15 01:15:07,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:07,685 INFO L93 Difference]: Finished difference Result 995 states and 1328 transitions. [2019-10-15 01:15:07,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:07,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-15 01:15:07,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:07,692 INFO L225 Difference]: With dead ends: 995 [2019-10-15 01:15:07,692 INFO L226 Difference]: Without dead ends: 637 [2019-10-15 01:15:07,695 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 01:15:07,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2019-10-15 01:15:07,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 636. [2019-10-15 01:15:07,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2019-10-15 01:15:07,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 862 transitions. [2019-10-15 01:15:07,732 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 862 transitions. Word has length 205 [2019-10-15 01:15:07,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:07,732 INFO L462 AbstractCegarLoop]: Abstraction has 636 states and 862 transitions. [2019-10-15 01:15:07,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:07,733 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 862 transitions. [2019-10-15 01:15:07,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 01:15:07,737 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:07,738 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] [2019-10-15 01:15:07,738 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:07,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:07,739 INFO L82 PathProgramCache]: Analyzing trace with hash 447199231, now seen corresponding path program 1 times [2019-10-15 01:15:07,739 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:07,739 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167809989] [2019-10-15 01:15:07,739 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:07,739 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:07,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:08,004 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:15:08,005 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167809989] [2019-10-15 01:15:08,005 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:08,005 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:08,006 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14469665] [2019-10-15 01:15:08,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:08,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:08,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:08,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:08,011 INFO L87 Difference]: Start difference. First operand 636 states and 862 transitions. Second operand 3 states. [2019-10-15 01:15:08,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:08,081 INFO L93 Difference]: Finished difference Result 1250 states and 1725 transitions. [2019-10-15 01:15:08,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:08,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2019-10-15 01:15:08,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:08,094 INFO L225 Difference]: With dead ends: 1250 [2019-10-15 01:15:08,094 INFO L226 Difference]: Without dead ends: 679 [2019-10-15 01:15:08,097 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 01:15:08,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2019-10-15 01:15:08,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 678. [2019-10-15 01:15:08,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2019-10-15 01:15:08,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 934 transitions. [2019-10-15 01:15:08,250 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 934 transitions. Word has length 211 [2019-10-15 01:15:08,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:08,251 INFO L462 AbstractCegarLoop]: Abstraction has 678 states and 934 transitions. [2019-10-15 01:15:08,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:08,251 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 934 transitions. [2019-10-15 01:15:08,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-15 01:15:08,256 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:08,257 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] [2019-10-15 01:15:08,257 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:08,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:08,257 INFO L82 PathProgramCache]: Analyzing trace with hash -811623100, now seen corresponding path program 1 times [2019-10-15 01:15:08,258 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:08,258 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344872505] [2019-10-15 01:15:08,258 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:08,258 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:08,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:08,679 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 01:15:08,679 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344872505] [2019-10-15 01:15:08,679 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490856869] [2019-10-15 01:15:08,680 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 01:15:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:09,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 3197 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:09,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:09,776 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 01:15:09,776 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:10,275 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:10,367 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:10,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:10,647 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 01:15:10,647 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:10,648 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19, 9] total 32 [2019-10-15 01:15:10,648 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106753419] [2019-10-15 01:15:10,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:15:10,649 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:10,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:15:10,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:15:10,650 INFO L87 Difference]: Start difference. First operand 678 states and 934 transitions. Second operand 9 states. [2019-10-15 01:15:12,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:12,525 INFO L93 Difference]: Finished difference Result 1334 states and 1848 transitions. [2019-10-15 01:15:12,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:15:12,526 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 212 [2019-10-15 01:15:12,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:12,533 INFO L225 Difference]: With dead ends: 1334 [2019-10-15 01:15:12,533 INFO L226 Difference]: Without dead ends: 692 [2019-10-15 01:15:12,536 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 413 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 01:15:12,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2019-10-15 01:15:12,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2019-10-15 01:15:12,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2019-10-15 01:15:12,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 952 transitions. [2019-10-15 01:15:12,581 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 952 transitions. Word has length 212 [2019-10-15 01:15:12,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:12,582 INFO L462 AbstractCegarLoop]: Abstraction has 692 states and 952 transitions. [2019-10-15 01:15:12,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:15:12,582 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 952 transitions. [2019-10-15 01:15:12,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:15:12,587 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:12,587 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] [2019-10-15 01:15:12,796 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:12,796 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:12,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:12,797 INFO L82 PathProgramCache]: Analyzing trace with hash -181621143, now seen corresponding path program 1 times [2019-10-15 01:15:12,797 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:12,798 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736162424] [2019-10-15 01:15:12,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:12,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:12,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:13,225 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 01:15:13,226 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736162424] [2019-10-15 01:15:13,226 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095961855] [2019-10-15 01:15:13,226 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 01:15:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:13,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 3198 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:15:13,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:14,037 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 01:15:14,037 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:14,374 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:14,464 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:14,570 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 01:15:14,571 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:14,571 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19, 7] total 28 [2019-10-15 01:15:14,571 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005252368] [2019-10-15 01:15:14,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:14,572 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:14,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:14,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:14,573 INFO L87 Difference]: Start difference. First operand 692 states and 952 transitions. Second operand 7 states. [2019-10-15 01:15:16,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:16,466 INFO L93 Difference]: Finished difference Result 1335 states and 1852 transitions. [2019-10-15 01:15:16,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:15:16,467 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2019-10-15 01:15:16,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:16,472 INFO L225 Difference]: With dead ends: 1335 [2019-10-15 01:15:16,472 INFO L226 Difference]: Without dead ends: 694 [2019-10-15 01:15:16,475 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 420 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2019-10-15 01:15:16,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2019-10-15 01:15:16,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2019-10-15 01:15:16,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2019-10-15 01:15:16,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 955 transitions. [2019-10-15 01:15:16,507 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 955 transitions. Word has length 213 [2019-10-15 01:15:16,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:16,507 INFO L462 AbstractCegarLoop]: Abstraction has 694 states and 955 transitions. [2019-10-15 01:15:16,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:16,508 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 955 transitions. [2019-10-15 01:15:16,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-15 01:15:16,513 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:16,513 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] [2019-10-15 01:15:16,724 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:16,724 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:16,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:16,725 INFO L82 PathProgramCache]: Analyzing trace with hash -78011398, now seen corresponding path program 1 times [2019-10-15 01:15:16,725 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:16,726 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473529100] [2019-10-15 01:15:16,726 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:16,726 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:16,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:17,328 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 01:15:17,328 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473529100] [2019-10-15 01:15:17,329 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896356521] [2019-10-15 01:15:17,329 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 01:15:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:18,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 3199 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:18,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:18,464 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 01:15:18,465 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:19,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:19,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:19,193 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:19,349 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 01:15:19,349 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:19,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [19] total 33 [2019-10-15 01:15:19,350 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140215515] [2019-10-15 01:15:19,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:15:19,351 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:19,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:15:19,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2019-10-15 01:15:19,352 INFO L87 Difference]: Start difference. First operand 694 states and 955 transitions. Second operand 16 states. [2019-10-15 01:15:22,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:22,049 INFO L93 Difference]: Finished difference Result 1339 states and 1852 transitions. [2019-10-15 01:15:22,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:22,049 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 214 [2019-10-15 01:15:22,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:22,055 INFO L225 Difference]: With dead ends: 1339 [2019-10-15 01:15:22,055 INFO L226 Difference]: Without dead ends: 706 [2019-10-15 01:15:22,058 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 417 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 01:15:22,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-10-15 01:15:22,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 704. [2019-10-15 01:15:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2019-10-15 01:15:22,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 966 transitions. [2019-10-15 01:15:22,092 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 966 transitions. Word has length 214 [2019-10-15 01:15:22,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:22,093 INFO L462 AbstractCegarLoop]: Abstraction has 704 states and 966 transitions. [2019-10-15 01:15:22,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:15:22,093 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 966 transitions. [2019-10-15 01:15:22,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2019-10-15 01:15:22,096 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:22,096 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] [2019-10-15 01:15:22,304 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:22,305 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:22,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:22,306 INFO L82 PathProgramCache]: Analyzing trace with hash 2115781347, now seen corresponding path program 2 times [2019-10-15 01:15:22,306 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:22,306 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95327991] [2019-10-15 01:15:22,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:22,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:22,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:22,726 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 01:15:22,727 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95327991] [2019-10-15 01:15:22,727 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747364523] [2019-10-15 01:15:22,728 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 01:15:23,525 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:15:23,525 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:15:23,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 2495 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:15:23,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:23,741 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 01:15:23,741 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:24,224 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 01:15:24,225 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:24,225 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [19] total 31 [2019-10-15 01:15:24,225 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087533056] [2019-10-15 01:15:24,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:15:24,227 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:24,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:15:24,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:15:24,228 INFO L87 Difference]: Start difference. First operand 704 states and 966 transitions. Second operand 14 states. [2019-10-15 01:15:27,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:27,379 INFO L93 Difference]: Finished difference Result 2389 states and 3317 transitions. [2019-10-15 01:15:27,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:15:27,379 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 215 [2019-10-15 01:15:27,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:27,392 INFO L225 Difference]: With dead ends: 2389 [2019-10-15 01:15:27,392 INFO L226 Difference]: Without dead ends: 2044 [2019-10-15 01:15:27,395 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 428 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 01:15:27,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2019-10-15 01:15:27,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 1650. [2019-10-15 01:15:27,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1650 states. [2019-10-15 01:15:27,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 2333 transitions. [2019-10-15 01:15:27,488 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 2333 transitions. Word has length 215 [2019-10-15 01:15:27,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:27,489 INFO L462 AbstractCegarLoop]: Abstraction has 1650 states and 2333 transitions. [2019-10-15 01:15:27,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:15:27,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 2333 transitions. [2019-10-15 01:15:27,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-15 01:15:27,496 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:27,496 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] [2019-10-15 01:15:27,704 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:27,705 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:27,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:27,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1274425157, now seen corresponding path program 1 times [2019-10-15 01:15:27,705 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:27,706 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582935360] [2019-10-15 01:15:27,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:27,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:27,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:28,078 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 01:15:28,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582935360] [2019-10-15 01:15:28,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95068231] [2019-10-15 01:15:28,080 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 01:15:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:28,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 3201 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:28,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:29,060 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 01:15:29,060 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:29,399 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:29,487 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:29,563 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:29,703 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 01:15:29,704 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:29,704 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [15] total 28 [2019-10-15 01:15:29,704 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426492447] [2019-10-15 01:15:29,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:15:29,705 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:29,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:15:29,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:29,706 INFO L87 Difference]: Start difference. First operand 1650 states and 2333 transitions. Second operand 15 states. [2019-10-15 01:15:32,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:32,344 INFO L93 Difference]: Finished difference Result 3194 states and 4542 transitions. [2019-10-15 01:15:32,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:32,344 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 216 [2019-10-15 01:15:32,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:32,355 INFO L225 Difference]: With dead ends: 3194 [2019-10-15 01:15:32,356 INFO L226 Difference]: Without dead ends: 1656 [2019-10-15 01:15:32,362 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 421 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:15:32,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2019-10-15 01:15:32,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1650. [2019-10-15 01:15:32,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1650 states. [2019-10-15 01:15:32,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 2331 transitions. [2019-10-15 01:15:32,442 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 2331 transitions. Word has length 216 [2019-10-15 01:15:32,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:32,443 INFO L462 AbstractCegarLoop]: Abstraction has 1650 states and 2331 transitions. [2019-10-15 01:15:32,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:15:32,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 2331 transitions. [2019-10-15 01:15:32,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-15 01:15:32,451 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:32,451 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] [2019-10-15 01:15:32,666 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:32,667 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:32,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:32,668 INFO L82 PathProgramCache]: Analyzing trace with hash -518021141, now seen corresponding path program 1 times [2019-10-15 01:15:32,668 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:32,669 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833485836] [2019-10-15 01:15:32,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:32,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:32,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:33,060 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 01:15:33,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833485836] [2019-10-15 01:15:33,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256945095] [2019-10-15 01:15:33,061 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 01:15:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:33,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 3199 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:15:33,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:33,890 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 01:15:33,890 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:34,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:34,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:34,234 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 01:15:34,235 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:34,235 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [15] total 25 [2019-10-15 01:15:34,235 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965221566] [2019-10-15 01:15:34,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:15:34,236 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:34,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:15:34,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:15:34,237 INFO L87 Difference]: Start difference. First operand 1650 states and 2331 transitions. Second operand 12 states.