java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:14:24,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:14:24,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:14:24,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:14:24,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:14:24,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:14:24,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:14:24,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:14:24,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:14:24,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:14:24,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:14:24,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:14:24,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:14:24,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:14:24,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:14:24,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:14:24,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:14:24,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:14:24,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:14:24,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:14:24,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:14:24,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:14:24,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:14:24,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:14:24,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:14:24,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:14:24,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:14:24,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:14:24,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:14:24,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:14:24,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:14:24,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:14:24,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:14:24,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:14:24,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:14:24,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:14:24,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:14:24,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:14:24,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:14:24,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:14:24,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:14:24,223 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 01:14:24,238 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:14:24,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:14:24,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:14:24,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:14:24,240 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:14:24,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:14:24,240 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:14:24,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:14:24,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:14:24,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:14:24,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:14:24,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:14:24,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:14:24,241 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:14:24,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:14:24,242 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:14:24,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:14:24,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:14:24,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:14:24,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:14:24,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:14:24,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:14:24,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:14:24,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:14:24,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:14:24,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:14:24,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:14:24,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:14:24,245 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 01:14:24,499 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:14:24,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:14:24,518 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:14:24,520 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:14:24,520 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:14:24,521 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product17.cil.c [2019-10-15 01:14:24,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c446f2647/a83a0016ec6f4238ac07a5fa34a10264/FLAG8c882be59 [2019-10-15 01:14:25,198 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:14:25,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product17.cil.c [2019-10-15 01:14:25,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c446f2647/a83a0016ec6f4238ac07a5fa34a10264/FLAG8c882be59 [2019-10-15 01:14:25,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c446f2647/a83a0016ec6f4238ac07a5fa34a10264 [2019-10-15 01:14:25,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:14:25,446 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:14:25,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:25,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:14:25,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:14:25,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:25" (1/1) ... [2019-10-15 01:14:25,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5d2151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:25, skipping insertion in model container [2019-10-15 01:14:25,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:25" (1/1) ... [2019-10-15 01:14:25,462 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:14:25,539 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:14:26,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:26,254 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:14:26,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:26,480 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:14:26,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:26 WrapperNode [2019-10-15 01:14:26,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:26,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:14:26,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:14:26,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:14:26,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:26" (1/1) ... [2019-10-15 01:14:26,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:26" (1/1) ... [2019-10-15 01:14:26,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:26" (1/1) ... [2019-10-15 01:14:26,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:26" (1/1) ... [2019-10-15 01:14:26,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:26" (1/1) ... [2019-10-15 01:14:26,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:26" (1/1) ... [2019-10-15 01:14:26,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:26" (1/1) ... [2019-10-15 01:14:26,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:14:26,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:14:26,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:14:26,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:14:26,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:26" (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 01:14:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:14:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:14:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:14:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:14:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:14:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:14:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:14:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:14:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:14:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:14:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:14:26,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:14:26,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:14:26,735 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:14:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:14:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:14:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:14:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:14:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:14:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:14:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:14:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:14:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:14:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:14:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:14:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:14:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:14:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:14:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:14:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:14:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:14:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:14:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:14:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:14:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:14:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:14:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:14:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:14:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:14:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:14:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:14:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:14:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:14:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:14:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:14:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:14:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:14:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:14:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:14:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:14:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:14:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:14:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:14:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:14:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:14:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:14:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:14:26,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:14:26,746 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:14:26,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:14:26,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:14:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:14:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:14:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:14:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:14:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:14:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:14:26,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:14:26,749 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:14:26,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:14:26,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:14:26,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:14:26,749 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:14:26,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:14:26,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:14:26,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:14:26,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:14:26,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:14:26,752 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:14:26,752 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:14:26,752 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:14:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:14:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:14:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:14:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:14:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:14:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:14:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:14:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:14:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:14:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:14:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:14:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:14:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:14:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:14:26,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:14:26,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:14:26,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:14:26,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:14:26,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:14:26,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:14:26,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:14:26,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:14:26,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:14:26,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:14:26,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:14:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:14:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:14:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:14:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:14:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:14:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:14:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:14:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:14:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:14:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:14:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:14:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:14:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:14:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:14:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:14:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:14:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:14:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:14:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:14:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:14:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:14:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:14:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:14:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:14:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:14:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:14:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:14:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:14:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:14:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:14:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:14:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:14:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:14:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:14:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:14:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:14:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:14:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:14:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:14:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:14:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:14:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:14:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:14:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:14:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:14:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:14:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:14:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:14:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:14:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:14:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:14:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:14:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:14:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:14:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:14:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:14:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:14:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:14:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:14:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:14:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:14:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:14:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:14:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:14:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:14:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:14:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:14:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:14:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:14:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:14:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:14:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:14:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:14:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:14:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:14:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:14:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:14:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:14:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:14:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:14:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:14:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:14:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:14:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:14:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:14:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:14:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:14:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:14:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:14:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:14:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:14:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:14:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:14:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:14:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:14:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:14:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:14:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:14:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:14:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:14:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:14:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:14:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:14:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:14:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:14:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:14:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:14:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:14:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:14:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:14:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:14:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:14:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:14:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:14:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:14:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:14:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:14:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:14:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:14:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:14:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:14:29,472 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:14:29,472 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:14:29,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:29 BoogieIcfgContainer [2019-10-15 01:14:29,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:14:29,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:14:29,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:14:29,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:14:29,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:14:25" (1/3) ... [2019-10-15 01:14:29,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efc522e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:29, skipping insertion in model container [2019-10-15 01:14:29,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:26" (2/3) ... [2019-10-15 01:14:29,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efc522e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:29, skipping insertion in model container [2019-10-15 01:14:29,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:29" (3/3) ... [2019-10-15 01:14:29,482 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product17.cil.c [2019-10-15 01:14:29,492 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:14:29,502 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:14:29,514 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:14:29,556 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:14:29,556 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:14:29,557 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:14:29,557 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:14:29,557 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:14:29,557 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:14:29,557 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:14:29,558 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:14:29,603 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states. [2019-10-15 01:14:29,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-15 01:14:29,641 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:29,642 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:29,645 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:29,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:29,651 INFO L82 PathProgramCache]: Analyzing trace with hash 219743261, now seen corresponding path program 1 times [2019-10-15 01:14:29,661 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:29,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043782057] [2019-10-15 01:14:29,664 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:29,665 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:29,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:30,299 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 01:14:30,300 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043782057] [2019-10-15 01:14:30,300 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:30,301 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:14:30,301 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312843596] [2019-10-15 01:14:30,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:14:30,308 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:30,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:14:30,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:14:30,324 INFO L87 Difference]: Start difference. First operand 552 states. Second operand 2 states. [2019-10-15 01:14:30,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:30,403 INFO L93 Difference]: Finished difference Result 757 states and 1036 transitions. [2019-10-15 01:14:30,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:14:30,405 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 179 [2019-10-15 01:14:30,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:30,431 INFO L225 Difference]: With dead ends: 757 [2019-10-15 01:14:30,431 INFO L226 Difference]: Without dead ends: 501 [2019-10-15 01:14:30,442 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 01:14:30,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-10-15 01:14:30,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2019-10-15 01:14:30,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2019-10-15 01:14:30,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 688 transitions. [2019-10-15 01:14:30,574 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 688 transitions. Word has length 179 [2019-10-15 01:14:30,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:30,576 INFO L462 AbstractCegarLoop]: Abstraction has 501 states and 688 transitions. [2019-10-15 01:14:30,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:14:30,577 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 688 transitions. [2019-10-15 01:14:30,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 01:14:30,581 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:30,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:30,582 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:30,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:30,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1078894523, now seen corresponding path program 1 times [2019-10-15 01:14:30,582 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:30,582 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319934807] [2019-10-15 01:14:30,583 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:30,583 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:30,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:30,867 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 01:14:30,867 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319934807] [2019-10-15 01:14:30,868 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:30,868 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:30,868 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969555892] [2019-10-15 01:14:30,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:30,876 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:30,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:30,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:30,877 INFO L87 Difference]: Start difference. First operand 501 states and 688 transitions. Second operand 3 states. [2019-10-15 01:14:30,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:30,954 INFO L93 Difference]: Finished difference Result 740 states and 998 transitions. [2019-10-15 01:14:30,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:30,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-15 01:14:30,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:30,959 INFO L225 Difference]: With dead ends: 740 [2019-10-15 01:14:30,960 INFO L226 Difference]: Without dead ends: 504 [2019-10-15 01:14:30,962 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 01:14:30,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2019-10-15 01:14:31,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 503. [2019-10-15 01:14:31,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2019-10-15 01:14:31,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 690 transitions. [2019-10-15 01:14:31,034 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 690 transitions. Word has length 180 [2019-10-15 01:14:31,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:31,035 INFO L462 AbstractCegarLoop]: Abstraction has 503 states and 690 transitions. [2019-10-15 01:14:31,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:31,035 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 690 transitions. [2019-10-15 01:14:31,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-15 01:14:31,039 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:31,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:31,039 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:31,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:31,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1911048495, now seen corresponding path program 1 times [2019-10-15 01:14:31,040 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:31,040 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312761941] [2019-10-15 01:14:31,040 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:31,041 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:31,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:31,185 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:31,185 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312761941] [2019-10-15 01:14:31,186 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:31,186 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:31,186 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140564976] [2019-10-15 01:14:31,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:31,187 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:31,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:31,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:31,188 INFO L87 Difference]: Start difference. First operand 503 states and 690 transitions. Second operand 3 states. [2019-10-15 01:14:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:31,224 INFO L93 Difference]: Finished difference Result 982 states and 1378 transitions. [2019-10-15 01:14:31,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:31,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-15 01:14:31,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:31,229 INFO L225 Difference]: With dead ends: 982 [2019-10-15 01:14:31,229 INFO L226 Difference]: Without dead ends: 544 [2019-10-15 01:14:31,231 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 01:14:31,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2019-10-15 01:14:31,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 543. [2019-10-15 01:14:31,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2019-10-15 01:14:31,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 759 transitions. [2019-10-15 01:14:31,255 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 759 transitions. Word has length 186 [2019-10-15 01:14:31,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:31,256 INFO L462 AbstractCegarLoop]: Abstraction has 543 states and 759 transitions. [2019-10-15 01:14:31,256 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:31,256 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 759 transitions. [2019-10-15 01:14:31,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-15 01:14:31,260 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:31,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:31,261 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:31,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:31,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1885803783, now seen corresponding path program 1 times [2019-10-15 01:14:31,262 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:31,262 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587596194] [2019-10-15 01:14:31,262 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:31,262 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:31,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:31,719 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:14:31,719 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587596194] [2019-10-15 01:14:31,719 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:31,720 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 01:14:31,720 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896464655] [2019-10-15 01:14:31,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:14:31,721 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:31,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:14:31,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:14:31,722 INFO L87 Difference]: Start difference. First operand 543 states and 759 transitions. Second operand 12 states. [2019-10-15 01:14:41,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:41,803 INFO L93 Difference]: Finished difference Result 2495 states and 3490 transitions. [2019-10-15 01:14:41,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-15 01:14:41,803 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 187 [2019-10-15 01:14:41,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:41,820 INFO L225 Difference]: With dead ends: 2495 [2019-10-15 01:14:41,820 INFO L226 Difference]: Without dead ends: 2260 [2019-10-15 01:14:41,826 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=377, Invalid=1515, Unknown=0, NotChecked=0, Total=1892 [2019-10-15 01:14:41,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2019-10-15 01:14:41,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2235. [2019-10-15 01:14:41,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2019-10-15 01:14:41,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 3060 transitions. [2019-10-15 01:14:41,970 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 3060 transitions. Word has length 187 [2019-10-15 01:14:41,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:41,971 INFO L462 AbstractCegarLoop]: Abstraction has 2235 states and 3060 transitions. [2019-10-15 01:14:41,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 01:14:41,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3060 transitions. [2019-10-15 01:14:41,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-15 01:14:41,975 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:41,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:41,976 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:41,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:41,976 INFO L82 PathProgramCache]: Analyzing trace with hash 380936231, now seen corresponding path program 1 times [2019-10-15 01:14:41,976 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:41,977 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647400006] [2019-10-15 01:14:41,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:41,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:41,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:42,319 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 01:14:42,320 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647400006] [2019-10-15 01:14:42,321 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:42,321 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:14:42,321 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966066174] [2019-10-15 01:14:42,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:14:42,322 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:42,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:14:42,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:14:42,323 INFO L87 Difference]: Start difference. First operand 2235 states and 3060 transitions. Second operand 18 states. [2019-10-15 01:14:42,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:42,829 INFO L93 Difference]: Finished difference Result 3941 states and 5444 transitions. [2019-10-15 01:14:42,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:14:42,830 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 188 [2019-10-15 01:14:42,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:42,842 INFO L225 Difference]: With dead ends: 3941 [2019-10-15 01:14:42,842 INFO L226 Difference]: Without dead ends: 1996 [2019-10-15 01:14:42,849 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:14:42,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2019-10-15 01:14:42,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1994. [2019-10-15 01:14:42,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2019-10-15 01:14:42,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2733 transitions. [2019-10-15 01:14:42,931 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2733 transitions. Word has length 188 [2019-10-15 01:14:42,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:42,932 INFO L462 AbstractCegarLoop]: Abstraction has 1994 states and 2733 transitions. [2019-10-15 01:14:42,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:14:42,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2733 transitions. [2019-10-15 01:14:42,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:14:42,936 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:42,936 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, 1, 1, 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 01:14:42,937 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:42,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:42,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1635559321, now seen corresponding path program 1 times [2019-10-15 01:14:42,937 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:42,937 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561371616] [2019-10-15 01:14:42,938 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:42,938 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:42,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:44,632 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 01:14:44,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561371616] [2019-10-15 01:14:44,633 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142231091] [2019-10-15 01:14:44,633 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 01:14:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:45,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 2725 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:14:45,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:14:45,589 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 01:14:45,590 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:14:45,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:14:46,105 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:46,271 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:46,448 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 01:14:46,448 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:14:46,448 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [48, 9] total 60 [2019-10-15 01:14:46,449 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476581192] [2019-10-15 01:14:46,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:14:46,450 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:46,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:14:46,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=3371, Unknown=0, NotChecked=0, Total=3540 [2019-10-15 01:14:46,451 INFO L87 Difference]: Start difference. First operand 1994 states and 2733 transitions. Second operand 9 states. [2019-10-15 01:14:47,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:47,988 INFO L93 Difference]: Finished difference Result 3966 states and 5446 transitions. [2019-10-15 01:14:47,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:14:47,988 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 197 [2019-10-15 01:14:47,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:48,005 INFO L225 Difference]: With dead ends: 3966 [2019-10-15 01:14:48,005 INFO L226 Difference]: Without dead ends: 2008 [2019-10-15 01:14:48,021 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 381 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=196, Invalid=3710, Unknown=0, NotChecked=0, Total=3906 [2019-10-15 01:14:48,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2019-10-15 01:14:48,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 2008. [2019-10-15 01:14:48,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2019-10-15 01:14:48,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2751 transitions. [2019-10-15 01:14:48,143 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2751 transitions. Word has length 197 [2019-10-15 01:14:48,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:48,143 INFO L462 AbstractCegarLoop]: Abstraction has 2008 states and 2751 transitions. [2019-10-15 01:14:48,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:14:48,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2751 transitions. [2019-10-15 01:14:48,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:14:48,147 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:48,147 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, 1, 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 01:14:48,363 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:48,363 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:48,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:48,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1189577975, now seen corresponding path program 1 times [2019-10-15 01:14:48,363 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:48,364 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836030943] [2019-10-15 01:14:48,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:48,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:48,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 01:14:50,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836030943] [2019-10-15 01:14:50,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169379178] [2019-10-15 01:14:50,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:50,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:14:50,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:14:51,146 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 01:14:51,147 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:14:51,479 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:51,618 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:51,667 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 01:14:51,667 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:14:51,668 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [46, 7] total 54 [2019-10-15 01:14:51,668 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574520927] [2019-10-15 01:14:51,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:14:51,670 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:51,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:14:51,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=2716, Unknown=0, NotChecked=0, Total=2862 [2019-10-15 01:14:51,671 INFO L87 Difference]: Start difference. First operand 2008 states and 2751 transitions. Second operand 7 states. [2019-10-15 01:14:52,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:52,772 INFO L93 Difference]: Finished difference Result 3967 states and 5450 transitions. [2019-10-15 01:14:52,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:14:52,774 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2019-10-15 01:14:52,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:52,790 INFO L225 Difference]: With dead ends: 3967 [2019-10-15 01:14:52,790 INFO L226 Difference]: Without dead ends: 2010 [2019-10-15 01:14:52,797 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 388 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=164, Invalid=2916, Unknown=0, NotChecked=0, Total=3080 [2019-10-15 01:14:52,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2019-10-15 01:14:52,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 2010. [2019-10-15 01:14:52,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2010 states. [2019-10-15 01:14:52,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 2754 transitions. [2019-10-15 01:14:52,909 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 2754 transitions. Word has length 198 [2019-10-15 01:14:52,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:52,910 INFO L462 AbstractCegarLoop]: Abstraction has 2010 states and 2754 transitions. [2019-10-15 01:14:52,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:14:52,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 2754 transitions. [2019-10-15 01:14:52,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 01:14:52,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:52,914 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, 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 01:14:53,124 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:53,124 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:53,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:53,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1181635200, now seen corresponding path program 1 times [2019-10-15 01:14:53,125 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:53,126 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386616706] [2019-10-15 01:14:53,126 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:53,126 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:53,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:54,787 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-15 01:14:54,787 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386616706] [2019-10-15 01:14:54,787 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:54,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2019-10-15 01:14:54,790 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923357170] [2019-10-15 01:14:54,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-10-15 01:14:54,792 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:54,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-10-15 01:14:54,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1543, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 01:14:54,793 INFO L87 Difference]: Start difference. First operand 2010 states and 2754 transitions. Second operand 41 states.