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_spec11_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:12:36,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:12:36,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:12:36,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:12:36,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:12:36,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:12:36,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:12:36,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:12:36,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:12:36,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:12:36,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:12:36,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:12:36,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:12:36,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:12:36,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:12:36,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:12:36,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:12:36,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:12:36,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:12:36,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:12:36,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:12:36,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:12:36,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:12:36,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:12:36,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:12:36,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:12:36,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:12:36,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:12:36,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:12:36,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:12:36,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:12:36,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:12:36,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:12:36,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:12:36,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:12:36,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:12:36,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:12:36,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:12:36,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:12:36,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:12:36,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:12:36,614 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 01:12:36,636 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:12:36,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:12:36,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:12:36,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:12:36,639 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:12:36,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:12:36,639 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:12:36,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:12:36,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:12:36,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:12:36,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:12:36,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:12:36,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:12:36,642 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:12:36,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:12:36,642 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:12:36,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:12:36,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:12:36,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:12:36,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:12:36,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:12:36,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:36,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:12:36,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:12:36,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:12:36,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:12:36,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:12:36,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:12:36,645 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 01:12:36,921 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:12:36,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:12:36,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:12:36,944 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:12:36,944 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:12:36,945 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product30.cil.c [2019-10-15 01:12:37,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1a1dd226/b4ef339a333943a98fc7f08f2c39da26/FLAG385df4a31 [2019-10-15 01:12:37,673 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:12:37,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product30.cil.c [2019-10-15 01:12:37,701 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1a1dd226/b4ef339a333943a98fc7f08f2c39da26/FLAG385df4a31 [2019-10-15 01:12:37,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1a1dd226/b4ef339a333943a98fc7f08f2c39da26 [2019-10-15 01:12:37,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:12:37,896 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:12:37,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:37,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:12:37,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:12:37,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:37" (1/1) ... [2019-10-15 01:12:37,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60903e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:37, skipping insertion in model container [2019-10-15 01:12:37,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:37" (1/1) ... [2019-10-15 01:12:37,909 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:12:37,989 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:12:38,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:38,807 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:12:38,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:39,039 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:12:39,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39 WrapperNode [2019-10-15 01:12:39,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:39,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:12:39,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:12:39,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:12:39,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:12:39,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:12:39,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:12:39,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:12:39,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (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 01:12:39,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:12:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:12:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:12:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:12:39,318 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:12:39,318 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:12:39,318 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:12:39,318 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:12:39,319 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:12:39,319 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:12:39,319 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:12:39,319 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:12:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:12:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:12:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:12:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:12:39,321 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:12:39,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:12:39,321 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:12:39,321 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:12:39,322 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:12:39,323 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:12:39,323 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:12:39,323 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:12:39,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 01:12:39,323 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:12:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:12:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:12:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:12:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:12:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:12:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:12:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:12:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:12:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:12:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:12:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:12:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:12:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:12:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:12:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:12:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:12:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:12:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:12:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:12:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:12:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:12:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 01:12:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:12:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:12:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:12:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:12:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:12:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:12:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:12:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:12:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:12:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:12:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:12:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:12:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:12:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:12:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:12:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:12:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:12:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:12:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:12:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:12:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:12:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:12:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:12:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:12:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:12:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:12:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:12:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:12:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:12:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:12:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:12:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:12:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:12:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:12:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:12:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:12:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:12:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:12:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:12:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:12:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:12:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:12:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:12:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:12:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:12:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:12:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:12:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:12:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:12:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:12:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:12:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:12:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:12:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:12:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:12:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:12:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:12:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:12:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:12:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:12:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:12:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:12:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:12:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:12:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:12:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:12:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:12:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:12:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:12:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:12:39,346 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:12:39,346 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:12:39,347 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:12:39,347 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:12:39,347 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:12:39,347 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:12:39,347 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:12:39,348 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:12:39,348 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:12:39,348 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:12:39,348 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:12:39,348 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:12:39,349 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:12:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:12:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:12:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:12:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:12:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:12:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:12:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:12:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:12:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:12:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:12:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:12:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:12:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:12:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:12:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:12:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:12:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:12:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:12:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:12:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:12:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:12:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:12:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:12:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:12:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 01:12:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:12:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:12:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:12:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:12:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:12:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:12:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:12:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:12:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:12:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:12:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:12:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:12:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:12:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:12:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:12:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:12:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:12:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:12:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:12:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:12:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:12:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:12:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:12:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 01:12:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:12:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:12:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:12:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:12:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:12:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:12:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:12:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:12:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:12:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:12:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:12:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:12:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:12:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:12:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:12:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:12:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:12:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:12:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:12:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:12:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:12:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:12:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:12:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:12:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:12:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:12:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:12:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:12:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:12:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:12:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:12:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:12:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:12:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:12:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:12:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:12:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:12:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:12:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:12:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:12:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:12:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:12:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:12:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:12:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:12:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:12:39,377 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:12:39,377 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:12:39,377 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:12:39,377 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:12:39,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:12:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:12:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:12:41,794 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:12:41,795 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:12:41,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:41 BoogieIcfgContainer [2019-10-15 01:12:41,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:12:41,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:12:41,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:12:41,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:12:41,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:12:37" (1/3) ... [2019-10-15 01:12:41,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfd9115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:41, skipping insertion in model container [2019-10-15 01:12:41,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (2/3) ... [2019-10-15 01:12:41,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfd9115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:41, skipping insertion in model container [2019-10-15 01:12:41,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:41" (3/3) ... [2019-10-15 01:12:41,808 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product30.cil.c [2019-10-15 01:12:41,819 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:12:41,831 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:12:41,844 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:12:41,886 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:12:41,886 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:12:41,887 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:12:41,891 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:12:41,891 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:12:41,891 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:12:41,891 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:12:41,891 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:12:41,932 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states. [2019-10-15 01:12:41,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-15 01:12:41,970 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:41,973 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, 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] [2019-10-15 01:12:41,976 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:41,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:41,984 INFO L82 PathProgramCache]: Analyzing trace with hash 235603723, now seen corresponding path program 1 times [2019-10-15 01:12:41,996 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:41,996 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261294198] [2019-10-15 01:12:41,996 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:41,997 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:41,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:42,741 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:42,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261294198] [2019-10-15 01:12:42,743 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:42,744 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:12:42,744 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211913379] [2019-10-15 01:12:42,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:12:42,753 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:42,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:12:42,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:42,772 INFO L87 Difference]: Start difference. First operand 541 states. Second operand 2 states. [2019-10-15 01:12:42,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:42,895 INFO L93 Difference]: Finished difference Result 768 states and 1016 transitions. [2019-10-15 01:12:42,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:12:42,898 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 216 [2019-10-15 01:12:42,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:42,938 INFO L225 Difference]: With dead ends: 768 [2019-10-15 01:12:42,938 INFO L226 Difference]: Without dead ends: 490 [2019-10-15 01:12:42,949 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:42,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2019-10-15 01:12:43,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2019-10-15 01:12:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2019-10-15 01:12:43,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 650 transitions. [2019-10-15 01:12:43,056 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 650 transitions. Word has length 216 [2019-10-15 01:12:43,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:43,060 INFO L462 AbstractCegarLoop]: Abstraction has 490 states and 650 transitions. [2019-10-15 01:12:43,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:12:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 650 transitions. [2019-10-15 01:12:43,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-15 01:12:43,070 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:43,070 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:43,071 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:43,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:43,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1056183382, now seen corresponding path program 1 times [2019-10-15 01:12:43,072 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:43,072 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690782970] [2019-10-15 01:12:43,072 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:43,072 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:43,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:43,414 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:43,415 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690782970] [2019-10-15 01:12:43,415 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:43,415 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:43,415 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630014607] [2019-10-15 01:12:43,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:43,423 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:43,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:43,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:43,424 INFO L87 Difference]: Start difference. First operand 490 states and 650 transitions. Second operand 3 states. [2019-10-15 01:12:43,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:43,515 INFO L93 Difference]: Finished difference Result 751 states and 980 transitions. [2019-10-15 01:12:43,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:43,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2019-10-15 01:12:43,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:43,522 INFO L225 Difference]: With dead ends: 751 [2019-10-15 01:12:43,522 INFO L226 Difference]: Without dead ends: 493 [2019-10-15 01:12:43,525 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 01:12:43,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2019-10-15 01:12:43,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 492. [2019-10-15 01:12:43,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 492 states. [2019-10-15 01:12:43,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 652 transitions. [2019-10-15 01:12:43,597 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 652 transitions. Word has length 217 [2019-10-15 01:12:43,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:43,598 INFO L462 AbstractCegarLoop]: Abstraction has 492 states and 652 transitions. [2019-10-15 01:12:43,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:43,598 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 652 transitions. [2019-10-15 01:12:43,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-15 01:12:43,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:43,607 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, 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] [2019-10-15 01:12:43,608 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:43,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:43,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1277940166, now seen corresponding path program 1 times [2019-10-15 01:12:43,608 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:43,609 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45784863] [2019-10-15 01:12:43,609 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:43,609 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:43,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:43,888 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:43,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45784863] [2019-10-15 01:12:43,889 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:43,889 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:43,889 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255358972] [2019-10-15 01:12:43,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:43,890 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:43,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:43,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:43,891 INFO L87 Difference]: Start difference. First operand 492 states and 652 transitions. Second operand 3 states. [2019-10-15 01:12:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:43,936 INFO L93 Difference]: Finished difference Result 960 states and 1302 transitions. [2019-10-15 01:12:43,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:43,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 227 [2019-10-15 01:12:43,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:43,941 INFO L225 Difference]: With dead ends: 960 [2019-10-15 01:12:43,942 INFO L226 Difference]: Without dead ends: 533 [2019-10-15 01:12:43,943 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 01:12:43,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2019-10-15 01:12:43,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 532. [2019-10-15 01:12:43,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2019-10-15 01:12:43,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 721 transitions. [2019-10-15 01:12:43,971 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 721 transitions. Word has length 227 [2019-10-15 01:12:43,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:43,972 INFO L462 AbstractCegarLoop]: Abstraction has 532 states and 721 transitions. [2019-10-15 01:12:43,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 721 transitions. [2019-10-15 01:12:43,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-10-15 01:12:43,977 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:43,977 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, 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 01:12:43,978 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:43,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:43,978 INFO L82 PathProgramCache]: Analyzing trace with hash -569425411, now seen corresponding path program 1 times [2019-10-15 01:12:43,979 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:43,979 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850193150] [2019-10-15 01:12:43,979 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:43,979 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:43,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:44,240 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:44,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850193150] [2019-10-15 01:12:44,242 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:44,243 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:44,243 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526074922] [2019-10-15 01:12:44,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:44,244 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:44,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:44,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:44,244 INFO L87 Difference]: Start difference. First operand 532 states and 721 transitions. Second operand 3 states. [2019-10-15 01:12:44,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:44,304 INFO L93 Difference]: Finished difference Result 1077 states and 1504 transitions. [2019-10-15 01:12:44,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:44,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2019-10-15 01:12:44,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:44,309 INFO L225 Difference]: With dead ends: 1077 [2019-10-15 01:12:44,310 INFO L226 Difference]: Without dead ends: 610 [2019-10-15 01:12:44,312 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 01:12:44,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2019-10-15 01:12:44,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 609. [2019-10-15 01:12:44,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2019-10-15 01:12:44,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 853 transitions. [2019-10-15 01:12:44,345 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 853 transitions. Word has length 228 [2019-10-15 01:12:44,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:44,346 INFO L462 AbstractCegarLoop]: Abstraction has 609 states and 853 transitions. [2019-10-15 01:12:44,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:44,346 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 853 transitions. [2019-10-15 01:12:44,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2019-10-15 01:12:44,352 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:44,352 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:44,353 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:44,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:44,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1991839302, now seen corresponding path program 1 times [2019-10-15 01:12:44,353 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:44,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539838579] [2019-10-15 01:12:44,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:44,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:44,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:44,659 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:44,659 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539838579] [2019-10-15 01:12:44,660 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:44,660 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:44,660 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367294091] [2019-10-15 01:12:44,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:44,661 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:44,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:44,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:44,662 INFO L87 Difference]: Start difference. First operand 609 states and 853 transitions. Second operand 3 states. [2019-10-15 01:12:44,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:44,711 INFO L93 Difference]: Finished difference Result 1302 states and 1890 transitions. [2019-10-15 01:12:44,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:44,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2019-10-15 01:12:44,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:44,718 INFO L225 Difference]: With dead ends: 1302 [2019-10-15 01:12:44,719 INFO L226 Difference]: Without dead ends: 758 [2019-10-15 01:12:44,721 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 01:12:44,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2019-10-15 01:12:44,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 757. [2019-10-15 01:12:44,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 757 states. [2019-10-15 01:12:44,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1105 transitions. [2019-10-15 01:12:44,764 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1105 transitions. Word has length 229 [2019-10-15 01:12:44,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:44,765 INFO L462 AbstractCegarLoop]: Abstraction has 757 states and 1105 transitions. [2019-10-15 01:12:44,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:44,765 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1105 transitions. [2019-10-15 01:12:44,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-15 01:12:44,772 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:44,772 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:44,772 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:44,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:44,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1885576835, now seen corresponding path program 1 times [2019-10-15 01:12:44,773 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:44,773 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099755083] [2019-10-15 01:12:44,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:44,774 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:44,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:44,972 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:44,972 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099755083] [2019-10-15 01:12:44,973 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:44,973 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:44,973 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032363433] [2019-10-15 01:12:44,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:44,975 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:44,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:44,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:44,975 INFO L87 Difference]: Start difference. First operand 757 states and 1105 transitions. Second operand 3 states. [2019-10-15 01:12:45,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:45,037 INFO L93 Difference]: Finished difference Result 1734 states and 2626 transitions. [2019-10-15 01:12:45,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:45,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2019-10-15 01:12:45,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:45,045 INFO L225 Difference]: With dead ends: 1734 [2019-10-15 01:12:45,045 INFO L226 Difference]: Without dead ends: 1042 [2019-10-15 01:12:45,047 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 01:12:45,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2019-10-15 01:12:45,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1041. [2019-10-15 01:12:45,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2019-10-15 01:12:45,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1585 transitions. [2019-10-15 01:12:45,108 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1585 transitions. Word has length 230 [2019-10-15 01:12:45,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:45,110 INFO L462 AbstractCegarLoop]: Abstraction has 1041 states and 1585 transitions. [2019-10-15 01:12:45,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:45,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1585 transitions. [2019-10-15 01:12:45,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-15 01:12:45,123 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:45,123 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, 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 01:12:45,124 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:45,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:45,124 INFO L82 PathProgramCache]: Analyzing trace with hash 752063174, now seen corresponding path program 1 times [2019-10-15 01:12:45,125 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:45,125 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707379639] [2019-10-15 01:12:45,125 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:45,126 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:45,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:45,448 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:45,449 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707379639] [2019-10-15 01:12:45,449 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:45,449 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:45,450 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723891747] [2019-10-15 01:12:45,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:45,452 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:45,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:45,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:45,452 INFO L87 Difference]: Start difference. First operand 1041 states and 1585 transitions. Second operand 3 states. [2019-10-15 01:12:45,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:45,567 INFO L93 Difference]: Finished difference Result 2562 states and 4026 transitions. [2019-10-15 01:12:45,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:45,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-15 01:12:45,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:45,583 INFO L225 Difference]: With dead ends: 2562 [2019-10-15 01:12:45,584 INFO L226 Difference]: Without dead ends: 1586 [2019-10-15 01:12:45,593 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 01:12:45,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2019-10-15 01:12:45,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1585. [2019-10-15 01:12:45,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1585 states. [2019-10-15 01:12:45,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2497 transitions. [2019-10-15 01:12:45,693 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2497 transitions. Word has length 231 [2019-10-15 01:12:45,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:45,694 INFO L462 AbstractCegarLoop]: Abstraction has 1585 states and 2497 transitions. [2019-10-15 01:12:45,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:45,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2497 transitions. [2019-10-15 01:12:45,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-15 01:12:45,710 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:45,710 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:45,711 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:45,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:45,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1473001190, now seen corresponding path program 1 times [2019-10-15 01:12:45,712 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:45,712 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847898154] [2019-10-15 01:12:45,712 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:45,713 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:45,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:46,191 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-15 01:12:46,191 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847898154] [2019-10-15 01:12:46,191 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:46,192 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:12:46,192 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279892253] [2019-10-15 01:12:46,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:12:46,193 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:46,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:12:46,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:46,195 INFO L87 Difference]: Start difference. First operand 1585 states and 2497 transitions. Second operand 19 states. [2019-10-15 01:12:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:51,594 INFO L93 Difference]: Finished difference Result 3938 states and 6152 transitions. [2019-10-15 01:12:51,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:12:51,595 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 233 [2019-10-15 01:12:51,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:51,642 INFO L225 Difference]: With dead ends: 3938 [2019-10-15 01:12:51,642 INFO L226 Difference]: Without dead ends: 3693 [2019-10-15 01:12:51,649 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:12:51,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2019-10-15 01:12:52,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3656. [2019-10-15 01:12:52,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3656 states. [2019-10-15 01:12:52,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 5775 transitions. [2019-10-15 01:12:52,085 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 5775 transitions. Word has length 233 [2019-10-15 01:12:52,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:52,089 INFO L462 AbstractCegarLoop]: Abstraction has 3656 states and 5775 transitions. [2019-10-15 01:12:52,089 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:12:52,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 5775 transitions. [2019-10-15 01:12:52,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 01:12:52,129 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:52,129 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:52,130 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:52,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:52,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1846424479, now seen corresponding path program 1 times [2019-10-15 01:12:52,131 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:52,131 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618919789] [2019-10-15 01:12:52,131 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:52,131 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:52,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:52,523 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-15 01:12:52,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618919789] [2019-10-15 01:12:52,525 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:52,525 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:12:52,525 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187640253] [2019-10-15 01:12:52,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:12:52,527 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:52,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:12:52,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:52,527 INFO L87 Difference]: Start difference. First operand 3656 states and 5775 transitions. Second operand 15 states. [2019-10-15 01:12:56,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:56,100 INFO L93 Difference]: Finished difference Result 4789 states and 7304 transitions. [2019-10-15 01:12:56,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:12:56,100 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 234 [2019-10-15 01:12:56,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:56,136 INFO L225 Difference]: With dead ends: 4789 [2019-10-15 01:12:56,136 INFO L226 Difference]: Without dead ends: 3758 [2019-10-15 01:12:56,142 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:12:56,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2019-10-15 01:12:56,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3726. [2019-10-15 01:12:56,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3726 states. [2019-10-15 01:12:56,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 5887 transitions. [2019-10-15 01:12:56,380 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 5887 transitions. Word has length 234 [2019-10-15 01:12:56,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:56,381 INFO L462 AbstractCegarLoop]: Abstraction has 3726 states and 5887 transitions. [2019-10-15 01:12:56,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:12:56,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 5887 transitions. [2019-10-15 01:12:56,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 01:12:56,413 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:56,413 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:56,414 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:56,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:56,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1741407830, now seen corresponding path program 1 times [2019-10-15 01:12:56,415 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:56,415 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048247732] [2019-10-15 01:12:56,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:56,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:56,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:56,912 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-15 01:12:56,912 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048247732] [2019-10-15 01:12:56,913 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:56,913 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:12:56,913 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973785464] [2019-10-15 01:12:56,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:12:56,914 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:56,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:12:56,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:12:56,915 INFO L87 Difference]: Start difference. First operand 3726 states and 5887 transitions. Second operand 16 states. [2019-10-15 01:12:57,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:57,304 INFO L93 Difference]: Finished difference Result 4949 states and 7548 transitions. [2019-10-15 01:12:57,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:12:57,305 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 234 [2019-10-15 01:12:57,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:57,331 INFO L225 Difference]: With dead ends: 4949 [2019-10-15 01:12:57,331 INFO L226 Difference]: Without dead ends: 3798 [2019-10-15 01:12:57,344 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:12:57,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3798 states. [2019-10-15 01:12:57,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3798 to 3767. [2019-10-15 01:12:57,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3767 states. [2019-10-15 01:12:57,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3767 states to 3767 states and 5933 transitions. [2019-10-15 01:12:57,543 INFO L78 Accepts]: Start accepts. Automaton has 3767 states and 5933 transitions. Word has length 234 [2019-10-15 01:12:57,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:57,544 INFO L462 AbstractCegarLoop]: Abstraction has 3767 states and 5933 transitions. [2019-10-15 01:12:57,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:12:57,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3767 states and 5933 transitions. [2019-10-15 01:12:57,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 01:12:57,564 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:57,565 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:57,565 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:57,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:57,565 INFO L82 PathProgramCache]: Analyzing trace with hash -306166866, now seen corresponding path program 1 times [2019-10-15 01:12:57,566 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:57,566 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456116526] [2019-10-15 01:12:57,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:57,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:57,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:57,743 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-15 01:12:57,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456116526] [2019-10-15 01:12:57,744 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:57,744 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:12:57,744 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35991168] [2019-10-15 01:12:57,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:12:57,745 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:57,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:12:57,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:57,746 INFO L87 Difference]: Start difference. First operand 3767 states and 5933 transitions. Second operand 5 states. [2019-10-15 01:12:59,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:59,071 INFO L93 Difference]: Finished difference Result 7301 states and 11313 transitions. [2019-10-15 01:12:59,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:12:59,072 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 234 [2019-10-15 01:12:59,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:59,114 INFO L225 Difference]: With dead ends: 7301 [2019-10-15 01:12:59,115 INFO L226 Difference]: Without dead ends: 6748 [2019-10-15 01:12:59,120 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:12:59,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6748 states. [2019-10-15 01:12:59,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6748 to 6717. [2019-10-15 01:12:59,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6717 states. [2019-10-15 01:12:59,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6717 states to 6717 states and 10517 transitions. [2019-10-15 01:12:59,460 INFO L78 Accepts]: Start accepts. Automaton has 6717 states and 10517 transitions. Word has length 234 [2019-10-15 01:12:59,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:59,462 INFO L462 AbstractCegarLoop]: Abstraction has 6717 states and 10517 transitions. [2019-10-15 01:12:59,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:59,462 INFO L276 IsEmpty]: Start isEmpty. Operand 6717 states and 10517 transitions. [2019-10-15 01:12:59,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 01:12:59,493 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:59,493 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:59,494 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:59,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:59,494 INFO L82 PathProgramCache]: Analyzing trace with hash 632364749, now seen corresponding path program 1 times [2019-10-15 01:12:59,494 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:59,495 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88322116] [2019-10-15 01:12:59,495 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:59,495 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:59,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:12:59,717 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88322116] [2019-10-15 01:12:59,717 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011568425] [2019-10-15 01:12:59,717 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 01:13:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:00,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 2966 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:13:00,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:13:00,612 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:00,613 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:13:01,038 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:13:01,128 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:01,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:01,337 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:13:01,338 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:13:01,338 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 20 [2019-10-15 01:13:01,338 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628873490] [2019-10-15 01:13:01,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:13:01,339 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:01,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:13:01,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:13:01,340 INFO L87 Difference]: Start difference. First operand 6717 states and 10517 transitions. Second operand 9 states. [2019-10-15 01:13:03,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:03,119 INFO L93 Difference]: Finished difference Result 13412 states and 21014 transitions. [2019-10-15 01:13:03,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:13:03,120 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 234 [2019-10-15 01:13:03,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:03,164 INFO L225 Difference]: With dead ends: 13412 [2019-10-15 01:13:03,165 INFO L226 Difference]: Without dead ends: 6731 [2019-10-15 01:13:03,194 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 461 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:13:03,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6731 states. [2019-10-15 01:13:03,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6731 to 6731. [2019-10-15 01:13:03,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6731 states. [2019-10-15 01:13:03,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6731 states to 6731 states and 10535 transitions. [2019-10-15 01:13:03,732 INFO L78 Accepts]: Start accepts. Automaton has 6731 states and 10535 transitions. Word has length 234 [2019-10-15 01:13:03,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:03,733 INFO L462 AbstractCegarLoop]: Abstraction has 6731 states and 10535 transitions. [2019-10-15 01:13:03,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:13:03,733 INFO L276 IsEmpty]: Start isEmpty. Operand 6731 states and 10535 transitions. [2019-10-15 01:13:03,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-15 01:13:03,778 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:03,778 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:03,992 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:03,992 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:03,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:03,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1340159205, now seen corresponding path program 1 times [2019-10-15 01:13:03,993 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:03,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671318406] [2019-10-15 01:13:03,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:03,994 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:03,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:04,282 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:13:04,282 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671318406] [2019-10-15 01:13:04,283 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114480388] [2019-10-15 01:13:04,283 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 01:13:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:04,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 2967 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:13:04,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:13:05,000 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:05,001 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:13:05,297 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:05,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:05,424 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:13:05,425 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:13:05,425 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 16 [2019-10-15 01:13:05,425 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005866024] [2019-10-15 01:13:05,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:13:05,426 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:05,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:13:05,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:13:05,427 INFO L87 Difference]: Start difference. First operand 6731 states and 10535 transitions. Second operand 7 states. [2019-10-15 01:13:07,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:07,113 INFO L93 Difference]: Finished difference Result 13417 states and 21070 transitions. [2019-10-15 01:13:07,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:07,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2019-10-15 01:13:07,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:07,146 INFO L225 Difference]: With dead ends: 13417 [2019-10-15 01:13:07,146 INFO L226 Difference]: Without dead ends: 6737 [2019-10-15 01:13:07,175 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 468 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:13:07,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6737 states. [2019-10-15 01:13:07,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6737 to 6737. [2019-10-15 01:13:07,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6737 states. [2019-10-15 01:13:07,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6737 states to 6737 states and 10542 transitions. [2019-10-15 01:13:07,512 INFO L78 Accepts]: Start accepts. Automaton has 6737 states and 10542 transitions. Word has length 235 [2019-10-15 01:13:07,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:07,513 INFO L462 AbstractCegarLoop]: Abstraction has 6737 states and 10542 transitions. [2019-10-15 01:13:07,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:13:07,513 INFO L276 IsEmpty]: Start isEmpty. Operand 6737 states and 10542 transitions. [2019-10-15 01:13:07,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-15 01:13:07,546 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:07,547 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:07,754 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:07,755 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:07,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:07,755 INFO L82 PathProgramCache]: Analyzing trace with hash 344725991, now seen corresponding path program 1 times [2019-10-15 01:13:07,756 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:07,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610418172] [2019-10-15 01:13:07,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:07,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:07,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:13:07,959 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610418172] [2019-10-15 01:13:07,959 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076808025] [2019-10-15 01:13:07,959 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