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_spec1_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:13:08,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:13:08,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:13:08,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:13:08,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:13:08,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:13:08,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:13:08,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:13:08,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:13:08,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:13:08,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:13:08,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:13:08,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:13:08,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:13:08,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:13:08,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:13:08,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:13:08,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:13:08,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:13:08,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:13:08,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:13:08,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:13:08,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:13:08,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:13:08,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:13:08,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:13:08,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:13:08,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:13:08,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:13:08,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:13:08,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:13:08,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:13:08,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:13:08,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:13:08,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:13:08,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:13:08,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:13:08,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:13:08,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:13:08,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:13:08,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:13:08,791 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 01:13:08,814 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:13:08,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:13:08,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:13:08,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:13:08,817 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:13:08,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:13:08,818 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:13:08,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:13:08,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:13:08,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:13:08,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:13:08,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:13:08,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:13:08,821 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:13:08,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:13:08,821 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:13:08,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:13:08,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:13:08,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:13:08,822 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:13:08,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:13:08,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:08,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:13:08,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:13:08,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:13:08,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:13:08,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:13:08,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:13:08,824 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 01:13:09,105 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:13:09,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:13:09,122 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:13:09,123 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:13:09,124 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:13:09,125 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product26.cil.c [2019-10-15 01:13:09,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39d2b7c32/415fd436304d425f895618c29bc5e7da/FLAG8cb830bbd [2019-10-15 01:13:09,850 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:13:09,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product26.cil.c [2019-10-15 01:13:09,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39d2b7c32/415fd436304d425f895618c29bc5e7da/FLAG8cb830bbd [2019-10-15 01:13:10,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39d2b7c32/415fd436304d425f895618c29bc5e7da [2019-10-15 01:13:10,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:13:10,050 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:13:10,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:10,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:13:10,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:13:10,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:10" (1/1) ... [2019-10-15 01:13:10,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef0aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:10, skipping insertion in model container [2019-10-15 01:13:10,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:10" (1/1) ... [2019-10-15 01:13:10,065 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:13:10,142 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:13:11,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:11,117 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:13:11,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:11,410 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:13:11,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11 WrapperNode [2019-10-15 01:13:11,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:11,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:13:11,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:13:11,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:13:11,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:11,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:11,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:11,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:11,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:11,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:11,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:11,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:13:11,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:13:11,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:13:11,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:13:11,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (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 01:13:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:13:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:13:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:13:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:13:11,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:11,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:13:11,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:11,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:13:11,768 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:13:11,768 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:13:11,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:13:11,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:13:11,769 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:13:11,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:13:11,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:13:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:13:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:13:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:13:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:13:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:13:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:13:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:13:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:13:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:13:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:13:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:13:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:13:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:13:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:13:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:13:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:13:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:13:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:13:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:13:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:13:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:13:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:13:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:13:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:13:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:13:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:13:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:13:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:13:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:13:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:13:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:13:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:13:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:13:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:13:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:13:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:13:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:13:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:13:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:13:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:13:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:13:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:13:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:13:11,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:13:11,785 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:13:11,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:13:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:13:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:13:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:13:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:13:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:13:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:13:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:13:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:13:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:13:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:13:11,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:13:11,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:13:11,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:13:11,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:13:11,790 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:13:11,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:13:11,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:13:11,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:13:11,791 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:13:11,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:13:11,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:13:11,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:13:11,793 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:13:11,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:13:11,794 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:13:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:13:11,796 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:13:11,796 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:13:11,796 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:13:11,796 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:13:11,796 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:13:11,797 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:13:11,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:13:11,797 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:13:11,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:13:11,797 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:13:11,798 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:13:11,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:13:11,798 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:13:11,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:13:11,798 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:13:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:13:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:13:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:13:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:13:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:13:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:13:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:13:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:13:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:13:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:13:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:13:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:13:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:13:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:13:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:13:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:13:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:13:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:13:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:13:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:13:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:13:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:13:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:13:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:13:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:13:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:13:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:13:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:13:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:13:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:13:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:13:11,812 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:13:11,812 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:13:11,813 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:13:11,813 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:13:11,813 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:13:11,814 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:13:11,823 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:13:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:13:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:13:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:13:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:13:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:13:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:13:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:13:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:13:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:13:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:13:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:13:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:13:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:13:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:13:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:13:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:13:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:13:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:13:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:13:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:13:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:13:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:13:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:13:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:13:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:13:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:13:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:13:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:13:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:13:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:13:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:13:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:13:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:13:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:13:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:13:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:13:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:13:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:13:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:13:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:13:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:13:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:13:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:13:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:13:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:13:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:13:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:13:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:13:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:13:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:13:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:13:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:13:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:13:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:13:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:13:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:13:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:13:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:13:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:13:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:13:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:13:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:13:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:13:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:13:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:13:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:13:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:13:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:13:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:13:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:13:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:13:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:13:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:13:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:13:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:13:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:13:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:13:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:13:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:13:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:13:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:13:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:13:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:13:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:13:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:13:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:13:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:13:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:13:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:13:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:13:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:13:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:13:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:13:14,118 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:13:14,118 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:13:14,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:14 BoogieIcfgContainer [2019-10-15 01:13:14,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:13:14,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:13:14,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:13:14,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:13:14,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:13:10" (1/3) ... [2019-10-15 01:13:14,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5d6496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:14, skipping insertion in model container [2019-10-15 01:13:14,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (2/3) ... [2019-10-15 01:13:14,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5d6496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:14, skipping insertion in model container [2019-10-15 01:13:14,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:14" (3/3) ... [2019-10-15 01:13:14,130 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product26.cil.c [2019-10-15 01:13:14,140 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:13:14,155 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:13:14,168 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:13:14,213 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:13:14,214 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:13:14,215 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:13:14,219 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:13:14,219 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:13:14,219 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:13:14,219 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:13:14,219 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:13:14,263 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states. [2019-10-15 01:13:14,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 01:13:14,301 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:14,306 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:14,310 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:14,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:14,317 INFO L82 PathProgramCache]: Analyzing trace with hash 249801548, now seen corresponding path program 1 times [2019-10-15 01:13:14,328 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:14,329 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241643499] [2019-10-15 01:13:14,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:14,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:14,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:14,945 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:14,946 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241643499] [2019-10-15 01:13:14,947 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:14,947 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:13:14,948 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211537295] [2019-10-15 01:13:14,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:13:14,957 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:14,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:13:14,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:14,974 INFO L87 Difference]: Start difference. First operand 601 states. Second operand 2 states. [2019-10-15 01:13:15,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:15,075 INFO L93 Difference]: Finished difference Result 877 states and 1188 transitions. [2019-10-15 01:13:15,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:13:15,080 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-15 01:13:15,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:15,121 INFO L225 Difference]: With dead ends: 877 [2019-10-15 01:13:15,121 INFO L226 Difference]: Without dead ends: 572 [2019-10-15 01:13:15,137 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 01:13:15,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-15 01:13:15,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2019-10-15 01:13:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-10-15 01:13:15,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 780 transitions. [2019-10-15 01:13:15,268 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 780 transitions. Word has length 154 [2019-10-15 01:13:15,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:15,275 INFO L462 AbstractCegarLoop]: Abstraction has 572 states and 780 transitions. [2019-10-15 01:13:15,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:13:15,275 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 780 transitions. [2019-10-15 01:13:15,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 01:13:15,285 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:15,285 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:15,285 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:15,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:15,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1309331988, now seen corresponding path program 1 times [2019-10-15 01:13:15,289 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:15,290 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952195009] [2019-10-15 01:13:15,290 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:15,290 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:15,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:15,579 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:15,580 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952195009] [2019-10-15 01:13:15,580 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:15,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:15,580 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047660652] [2019-10-15 01:13:15,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:15,638 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:15,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:15,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:15,638 INFO L87 Difference]: Start difference. First operand 572 states and 780 transitions. Second operand 3 states. [2019-10-15 01:13:15,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:15,724 INFO L93 Difference]: Finished difference Result 860 states and 1154 transitions. [2019-10-15 01:13:15,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:15,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-15 01:13:15,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:15,736 INFO L225 Difference]: With dead ends: 860 [2019-10-15 01:13:15,736 INFO L226 Difference]: Without dead ends: 575 [2019-10-15 01:13:15,739 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 01:13:15,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2019-10-15 01:13:15,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 574. [2019-10-15 01:13:15,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2019-10-15 01:13:15,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 782 transitions. [2019-10-15 01:13:15,783 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 782 transitions. Word has length 155 [2019-10-15 01:13:15,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:15,783 INFO L462 AbstractCegarLoop]: Abstraction has 574 states and 782 transitions. [2019-10-15 01:13:15,783 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:15,784 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 782 transitions. [2019-10-15 01:13:15,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-15 01:13:15,787 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:15,787 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:15,788 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:15,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:15,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1076372643, now seen corresponding path program 1 times [2019-10-15 01:13:15,789 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:15,789 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051561767] [2019-10-15 01:13:15,789 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:15,789 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:15,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:16,044 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051561767] [2019-10-15 01:13:16,044 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:16,045 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:16,045 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63536501] [2019-10-15 01:13:16,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:16,051 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:16,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:16,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:16,052 INFO L87 Difference]: Start difference. First operand 574 states and 782 transitions. Second operand 3 states. [2019-10-15 01:13:16,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:16,112 INFO L93 Difference]: Finished difference Result 1128 states and 1568 transitions. [2019-10-15 01:13:16,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:16,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2019-10-15 01:13:16,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:16,123 INFO L225 Difference]: With dead ends: 1128 [2019-10-15 01:13:16,124 INFO L226 Difference]: Without dead ends: 619 [2019-10-15 01:13:16,126 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 01:13:16,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-15 01:13:16,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 618. [2019-10-15 01:13:16,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-10-15 01:13:16,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 857 transitions. [2019-10-15 01:13:16,181 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 857 transitions. Word has length 167 [2019-10-15 01:13:16,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:16,182 INFO L462 AbstractCegarLoop]: Abstraction has 618 states and 857 transitions. [2019-10-15 01:13:16,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:16,182 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 857 transitions. [2019-10-15 01:13:16,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-15 01:13:16,190 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:16,190 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:16,191 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:16,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:16,191 INFO L82 PathProgramCache]: Analyzing trace with hash -55572167, now seen corresponding path program 1 times [2019-10-15 01:13:16,192 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:16,192 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871467817] [2019-10-15 01:13:16,192 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:16,192 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:16,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:16,399 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:16,399 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871467817] [2019-10-15 01:13:16,399 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:16,400 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:16,400 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607902901] [2019-10-15 01:13:16,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:16,401 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:16,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:16,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:16,402 INFO L87 Difference]: Start difference. First operand 618 states and 857 transitions. Second operand 3 states. [2019-10-15 01:13:16,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:16,490 INFO L93 Difference]: Finished difference Result 1257 states and 1788 transitions. [2019-10-15 01:13:16,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:16,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-15 01:13:16,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:16,498 INFO L225 Difference]: With dead ends: 1257 [2019-10-15 01:13:16,499 INFO L226 Difference]: Without dead ends: 704 [2019-10-15 01:13:16,501 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 01:13:16,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2019-10-15 01:13:16,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 703. [2019-10-15 01:13:16,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2019-10-15 01:13:16,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1001 transitions. [2019-10-15 01:13:16,540 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1001 transitions. Word has length 168 [2019-10-15 01:13:16,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:16,541 INFO L462 AbstractCegarLoop]: Abstraction has 703 states and 1001 transitions. [2019-10-15 01:13:16,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:16,541 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1001 transitions. [2019-10-15 01:13:16,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-15 01:13:16,546 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:16,546 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:16,546 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:16,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:16,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1062481768, now seen corresponding path program 1 times [2019-10-15 01:13:16,547 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:16,547 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381597827] [2019-10-15 01:13:16,548 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:16,548 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:16,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:17,654 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-15 01:13:17,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381597827] [2019-10-15 01:13:17,655 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:17,655 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2019-10-15 01:13:17,655 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146360495] [2019-10-15 01:13:17,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-10-15 01:13:17,656 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:17,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-10-15 01:13:17,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1105, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:13:17,658 INFO L87 Difference]: Start difference. First operand 703 states and 1001 transitions. Second operand 35 states. [2019-10-15 01:13:23,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:23,819 INFO L93 Difference]: Finished difference Result 2051 states and 2980 transitions. [2019-10-15 01:13:23,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-15 01:13:23,820 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 171 [2019-10-15 01:13:23,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:23,834 INFO L225 Difference]: With dead ends: 2051 [2019-10-15 01:13:23,834 INFO L226 Difference]: Without dead ends: 1380 [2019-10-15 01:13:23,839 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=298, Invalid=4124, Unknown=0, NotChecked=0, Total=4422 [2019-10-15 01:13:23,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2019-10-15 01:13:23,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1070. [2019-10-15 01:13:23,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1070 states. [2019-10-15 01:13:23,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1597 transitions. [2019-10-15 01:13:23,915 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1597 transitions. Word has length 171 [2019-10-15 01:13:23,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:23,915 INFO L462 AbstractCegarLoop]: Abstraction has 1070 states and 1597 transitions. [2019-10-15 01:13:23,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-10-15 01:13:23,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1597 transitions. [2019-10-15 01:13:23,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-15 01:13:23,921 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:23,921 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:23,922 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:23,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:23,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1787377896, now seen corresponding path program 1 times [2019-10-15 01:13:23,922 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:23,922 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806713367] [2019-10-15 01:13:23,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:23,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:23,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:24,073 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:24,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806713367] [2019-10-15 01:13:24,075 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:24,075 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:24,075 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858622268] [2019-10-15 01:13:24,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:24,076 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:24,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:24,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:24,077 INFO L87 Difference]: Start difference. First operand 1070 states and 1597 transitions. Second operand 3 states. [2019-10-15 01:13:24,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:24,160 INFO L93 Difference]: Finished difference Result 2390 states and 3682 transitions. [2019-10-15 01:13:24,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:24,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-15 01:13:24,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:24,174 INFO L225 Difference]: With dead ends: 2390 [2019-10-15 01:13:24,174 INFO L226 Difference]: Without dead ends: 1399 [2019-10-15 01:13:24,183 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 01:13:24,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2019-10-15 01:13:24,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1398. [2019-10-15 01:13:24,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2019-10-15 01:13:24,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 2167 transitions. [2019-10-15 01:13:24,293 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 2167 transitions. Word has length 170 [2019-10-15 01:13:24,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:24,298 INFO L462 AbstractCegarLoop]: Abstraction has 1398 states and 2167 transitions. [2019-10-15 01:13:24,298 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:24,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 2167 transitions. [2019-10-15 01:13:24,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-15 01:13:24,309 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:24,310 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-15 01:13:24,310 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:24,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:24,311 INFO L82 PathProgramCache]: Analyzing trace with hash -50944113, now seen corresponding path program 1 times [2019-10-15 01:13:24,311 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:24,311 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065773247] [2019-10-15 01:13:24,312 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:24,312 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:24,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:13:25,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065773247] [2019-10-15 01:13:25,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576563885] [2019-10-15 01:13:25,175 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 01:13:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:25,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 2721 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:13:25,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:13:26,085 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:13:26,086 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:13:26,404 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:26,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:26,579 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:26,579 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:13:26,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-15 01:13:26,580 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393375999] [2019-10-15 01:13:26,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:13:26,581 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:26,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:13:26,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-15 01:13:26,583 INFO L87 Difference]: Start difference. First operand 1398 states and 2167 transitions. Second operand 7 states. [2019-10-15 01:13:27,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:27,692 INFO L93 Difference]: Finished difference Result 2749 states and 4291 transitions. [2019-10-15 01:13:27,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:27,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2019-10-15 01:13:27,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:27,704 INFO L225 Difference]: With dead ends: 2749 [2019-10-15 01:13:27,704 INFO L226 Difference]: Without dead ends: 1402 [2019-10-15 01:13:27,712 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 339 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 01:13:27,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2019-10-15 01:13:27,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1402. [2019-10-15 01:13:27,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1402 states. [2019-10-15 01:13:27,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 2172 transitions. [2019-10-15 01:13:27,796 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 2172 transitions. Word has length 173 [2019-10-15 01:13:27,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:27,796 INFO L462 AbstractCegarLoop]: Abstraction has 1402 states and 2172 transitions. [2019-10-15 01:13:27,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:13:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 2172 transitions. [2019-10-15 01:13:27,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 01:13:27,806 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:27,807 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:13:28,015 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:28,016 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:28,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:28,016 INFO L82 PathProgramCache]: Analyzing trace with hash -2069323625, now seen corresponding path program 1 times [2019-10-15 01:13:28,016 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:28,017 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556280601] [2019-10-15 01:13:28,017 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:28,017 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:28,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:28,721 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556280601] [2019-10-15 01:13:28,721 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:28,721 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:13:28,722 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826307307] [2019-10-15 01:13:28,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:13:28,723 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:28,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:13:28,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:13:28,724 INFO L87 Difference]: Start difference. First operand 1402 states and 2172 transitions. Second operand 26 states. [2019-10-15 01:13:39,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:39,813 INFO L93 Difference]: Finished difference Result 3922 states and 5848 transitions. [2019-10-15 01:13:39,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-15 01:13:39,814 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 174 [2019-10-15 01:13:39,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:39,836 INFO L225 Difference]: With dead ends: 3922 [2019-10-15 01:13:39,836 INFO L226 Difference]: Without dead ends: 3646 [2019-10-15 01:13:39,841 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1516 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=724, Invalid=5596, Unknown=0, NotChecked=0, Total=6320 [2019-10-15 01:13:39,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2019-10-15 01:13:40,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 3035. [2019-10-15 01:13:40,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3035 states. [2019-10-15 01:13:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 4680 transitions. [2019-10-15 01:13:40,015 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 4680 transitions. Word has length 174 [2019-10-15 01:13:40,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:40,016 INFO L462 AbstractCegarLoop]: Abstraction has 3035 states and 4680 transitions. [2019-10-15 01:13:40,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 01:13:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 4680 transitions. [2019-10-15 01:13:40,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-15 01:13:40,029 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:40,029 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:40,030 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:40,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:40,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1871716322, now seen corresponding path program 1 times [2019-10-15 01:13:40,031 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:40,031 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499862246] [2019-10-15 01:13:40,031 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:40,031 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:40,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:40,350 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:13:40,350 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499862246] [2019-10-15 01:13:40,351 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:40,351 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 01:13:40,351 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314030101] [2019-10-15 01:13:40,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:13:40,352 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:40,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:13:40,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:13:40,353 INFO L87 Difference]: Start difference. First operand 3035 states and 4680 transitions. Second operand 12 states. [2019-10-15 01:13:40,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:40,775 INFO L93 Difference]: Finished difference Result 3956 states and 5956 transitions. [2019-10-15 01:13:40,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:13:40,776 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2019-10-15 01:13:40,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:40,807 INFO L225 Difference]: With dead ends: 3956 [2019-10-15 01:13:40,808 INFO L226 Difference]: Without dead ends: 3125 [2019-10-15 01:13:40,815 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:13:40,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3125 states. [2019-10-15 01:13:40,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3125 to 3125. [2019-10-15 01:13:40,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3125 states. [2019-10-15 01:13:41,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 4821 transitions. [2019-10-15 01:13:41,006 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 4821 transitions. Word has length 175 [2019-10-15 01:13:41,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:41,007 INFO L462 AbstractCegarLoop]: Abstraction has 3125 states and 4821 transitions. [2019-10-15 01:13:41,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 01:13:41,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 4821 transitions. [2019-10-15 01:13:41,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-15 01:13:41,021 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:41,021 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:41,022 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:41,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:41,022 INFO L82 PathProgramCache]: Analyzing trace with hash 483136297, now seen corresponding path program 1 times [2019-10-15 01:13:41,022 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:41,023 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662688526] [2019-10-15 01:13:41,023 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:41,023 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:41,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:41,199 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:13:41,200 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662688526] [2019-10-15 01:13:41,200 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:41,200 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:13:41,200 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650995988] [2019-10-15 01:13:41,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:13:41,206 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:41,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:13:41,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:13:41,207 INFO L87 Difference]: Start difference. First operand 3125 states and 4821 transitions. Second operand 5 states.