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_spec8_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:17:30,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:17:30,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:17:30,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:17:30,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:17:30,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:17:30,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:17:30,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:17:30,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:17:30,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:17:30,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:17:30,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:17:30,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:17:30,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:17:30,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:17:30,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:17:30,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:17:30,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:17:30,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:17:30,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:17:30,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:17:30,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:17:30,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:17:30,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:17:30,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:17:30,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:17:30,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:17:30,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:17:30,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:17:30,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:17:30,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:17:30,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:17:30,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:17:30,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:17:30,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:17:30,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:17:30,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:17:30,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:17:30,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:17:30,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:17:30,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:17:30,398 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 01:17:30,432 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:17:30,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:17:30,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:17:30,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:17:30,434 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:17:30,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:17:30,435 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:17:30,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:17:30,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:17:30,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:17:30,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:17:30,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:17:30,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:17:30,439 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:17:30,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:17:30,440 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:17:30,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:17:30,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:17:30,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:17:30,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:17:30,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:17:30,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:17:30,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:17:30,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:17:30,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:17:30,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:17:30,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:17:30,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:17:30,442 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 01:17:30,770 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:17:30,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:17:30,787 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:17:30,789 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:17:30,789 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:17:30,790 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product30.cil.c [2019-10-15 01:17:30,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f592efe38/4014c78633924bb186439c1da5e6daa0/FLAGeb3593061 [2019-10-15 01:17:31,488 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:17:31,489 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product30.cil.c [2019-10-15 01:17:31,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f592efe38/4014c78633924bb186439c1da5e6daa0/FLAGeb3593061 [2019-10-15 01:17:31,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f592efe38/4014c78633924bb186439c1da5e6daa0 [2019-10-15 01:17:31,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:17:31,697 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:17:31,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:17:31,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:17:31,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:17:31,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:17:31" (1/1) ... [2019-10-15 01:17:31,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7180328c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:31, skipping insertion in model container [2019-10-15 01:17:31,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:17:31" (1/1) ... [2019-10-15 01:17:31,715 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:17:31,779 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:17:32,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:17:32,578 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:17:32,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:17:32,812 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:17:32,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:32 WrapperNode [2019-10-15 01:17:32,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:17:32,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:17:32,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:17:32,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:17:32,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:32" (1/1) ... [2019-10-15 01:17:32,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:32" (1/1) ... [2019-10-15 01:17:32,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:32" (1/1) ... [2019-10-15 01:17:32,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:32" (1/1) ... [2019-10-15 01:17:32,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:32" (1/1) ... [2019-10-15 01:17:32,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:32" (1/1) ... [2019-10-15 01:17:32,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:32" (1/1) ... [2019-10-15 01:17:33,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:17:33,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:17:33,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:17:33,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:17:33,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:32" (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 01:17:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:17:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:17:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:17:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:17:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:17:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:17:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:17:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:17:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:17:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:17:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:17:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:17:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:17:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:17:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:17:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:17:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:17:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:17:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:17:33,091 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:17:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:17:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:17:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:17:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 01:17:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 01:17:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:17:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:17:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 01:17:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:17:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:17:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:17:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:17:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:17:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:17:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:17:33,095 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:17:33,095 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:17:33,095 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:17:33,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:17:33,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:17:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:17:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:17:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:17:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:17:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:17:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:17:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:17:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:17:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:17:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:17:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:17:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:17:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:17:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:17:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:17:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:17:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:17:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:17:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:17:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:17:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:17:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:17:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:17:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:17:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:17:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:17:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:17:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:17:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:17:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:17:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:17:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:17:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:17:33,102 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:17:33,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:17:33,103 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:17:33,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:17:33,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:17:33,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:17:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:17:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:17:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:17:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:17:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:17:33,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:17:33,105 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:17:33,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:17:33,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:17:33,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:17:33,107 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:17:33,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:17:33,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:17:33,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:17:33,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:17:33,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:17:33,107 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:17:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:17:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:17:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:17:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:17:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:17:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:17:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:17:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:17:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:17:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:17:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:17:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:17:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:17:33,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:17:33,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:17:33,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:17:33,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:17:33,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:17:33,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:17:33,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:17:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:17:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:17:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:17:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:17:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:17:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:17:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:17:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:17:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:17:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:17:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:17:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:17:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:17:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:17:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:17:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:17:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:17:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:17:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:17:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:17:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:17:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:17:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:17:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:17:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:17:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:17:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:17:33,121 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:17:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:17:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:17:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:17:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:17:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:17:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:17:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:17:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:17:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:17:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:17:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:17:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:17:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:17:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:17:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:17:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:17:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:17:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 01:17:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 01:17:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:17:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:17:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:17:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:17:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:17:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:17:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:17:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:17:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:17:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:17:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:17:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:17:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:17:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:17:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 01:17:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:17:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:17:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:17:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:17:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:17:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:17:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:17:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:17:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:17:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:17:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:17:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:17:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:17:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:17:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:17:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:17:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:17:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:17:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:17:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:17:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:17:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:17:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:17:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:17:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:17:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:17:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:17:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:17:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:17:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:17:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:17:33,138 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:17:33,138 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:17:33,138 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:17:33,138 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:17:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:17:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:17:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:17:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:17:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:17:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:17:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:17:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:17:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:17:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:17:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:17:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:17:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:17:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:17:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:17:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:17:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:17:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:17:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:17:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:17:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:17:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:17:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:17:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:17:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:17:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:17:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:17:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:17:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:17:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:17:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:17:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:17:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:17:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:17:35,289 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:17:35,289 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:17:35,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:35 BoogieIcfgContainer [2019-10-15 01:17:35,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:17:35,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:17:35,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:17:35,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:17:35,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:17:31" (1/3) ... [2019-10-15 01:17:35,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@975e611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:35, skipping insertion in model container [2019-10-15 01:17:35,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:32" (2/3) ... [2019-10-15 01:17:35,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@975e611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:35, skipping insertion in model container [2019-10-15 01:17:35,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:35" (3/3) ... [2019-10-15 01:17:35,301 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product30.cil.c [2019-10-15 01:17:35,311 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:17:35,323 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:17:35,334 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:17:35,375 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:17:35,379 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:17:35,379 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:17:35,379 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:17:35,380 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:17:35,380 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:17:35,380 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:17:35,380 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:17:35,422 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states. [2019-10-15 01:17:35,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-15 01:17:35,454 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:35,456 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] [2019-10-15 01:17:35,461 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:35,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:35,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1306914871, now seen corresponding path program 1 times [2019-10-15 01:17:35,480 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:35,480 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760725372] [2019-10-15 01:17:35,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:35,481 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:35,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:36,179 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 01:17:36,180 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760725372] [2019-10-15 01:17:36,181 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:36,181 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:17:36,181 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322835187] [2019-10-15 01:17:36,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:17:36,190 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:36,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:17:36,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:17:36,207 INFO L87 Difference]: Start difference. First operand 548 states. Second operand 2 states. [2019-10-15 01:17:36,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:36,294 INFO L93 Difference]: Finished difference Result 782 states and 1030 transitions. [2019-10-15 01:17:36,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:17:36,298 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 158 [2019-10-15 01:17:36,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:36,321 INFO L225 Difference]: With dead ends: 782 [2019-10-15 01:17:36,321 INFO L226 Difference]: Without dead ends: 497 [2019-10-15 01:17:36,328 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 01:17:36,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2019-10-15 01:17:36,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 497. [2019-10-15 01:17:36,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2019-10-15 01:17:36,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 659 transitions. [2019-10-15 01:17:36,427 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 659 transitions. Word has length 158 [2019-10-15 01:17:36,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:36,431 INFO L462 AbstractCegarLoop]: Abstraction has 497 states and 659 transitions. [2019-10-15 01:17:36,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:17:36,431 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 659 transitions. [2019-10-15 01:17:36,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-15 01:17:36,439 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:36,439 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] [2019-10-15 01:17:36,440 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:36,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:36,442 INFO L82 PathProgramCache]: Analyzing trace with hash -243585383, now seen corresponding path program 1 times [2019-10-15 01:17:36,442 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:36,442 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647090089] [2019-10-15 01:17:36,442 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:36,442 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:36,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:36,716 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 01:17:36,717 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647090089] [2019-10-15 01:17:36,717 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:36,717 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:36,718 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928485283] [2019-10-15 01:17:36,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:36,728 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:36,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:36,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:36,730 INFO L87 Difference]: Start difference. First operand 497 states and 659 transitions. Second operand 3 states. [2019-10-15 01:17:36,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:36,842 INFO L93 Difference]: Finished difference Result 765 states and 998 transitions. [2019-10-15 01:17:36,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:36,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-15 01:17:36,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:36,853 INFO L225 Difference]: With dead ends: 765 [2019-10-15 01:17:36,853 INFO L226 Difference]: Without dead ends: 500 [2019-10-15 01:17:36,860 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 01:17:36,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2019-10-15 01:17:36,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 499. [2019-10-15 01:17:36,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2019-10-15 01:17:36,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 661 transitions. [2019-10-15 01:17:36,919 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 661 transitions. Word has length 159 [2019-10-15 01:17:36,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:36,921 INFO L462 AbstractCegarLoop]: Abstraction has 499 states and 661 transitions. [2019-10-15 01:17:36,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:36,921 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 661 transitions. [2019-10-15 01:17:36,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-15 01:17:36,926 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:36,926 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] [2019-10-15 01:17:36,926 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:36,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:36,927 INFO L82 PathProgramCache]: Analyzing trace with hash -614600471, now seen corresponding path program 1 times [2019-10-15 01:17:36,927 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:36,927 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616433981] [2019-10-15 01:17:36,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:36,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:36,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:37,149 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 01:17:37,149 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616433981] [2019-10-15 01:17:37,150 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:37,150 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:37,150 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196351109] [2019-10-15 01:17:37,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:37,156 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:37,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:37,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:37,157 INFO L87 Difference]: Start difference. First operand 499 states and 661 transitions. Second operand 3 states. [2019-10-15 01:17:37,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:37,202 INFO L93 Difference]: Finished difference Result 974 states and 1320 transitions. [2019-10-15 01:17:37,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:37,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2019-10-15 01:17:37,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:37,211 INFO L225 Difference]: With dead ends: 974 [2019-10-15 01:17:37,211 INFO L226 Difference]: Without dead ends: 540 [2019-10-15 01:17:37,213 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 01:17:37,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-10-15 01:17:37,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 539. [2019-10-15 01:17:37,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-10-15 01:17:37,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 730 transitions. [2019-10-15 01:17:37,248 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 730 transitions. Word has length 169 [2019-10-15 01:17:37,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:37,249 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 730 transitions. [2019-10-15 01:17:37,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:37,249 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 730 transitions. [2019-10-15 01:17:37,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-15 01:17:37,257 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:37,258 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] [2019-10-15 01:17:37,259 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:37,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:37,259 INFO L82 PathProgramCache]: Analyzing trace with hash -790439685, now seen corresponding path program 1 times [2019-10-15 01:17:37,259 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:37,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544977839] [2019-10-15 01:17:37,260 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:37,260 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:37,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:37,463 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 01:17:37,463 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544977839] [2019-10-15 01:17:37,464 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:37,464 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:37,464 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348585887] [2019-10-15 01:17:37,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:37,466 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:37,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:37,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:37,467 INFO L87 Difference]: Start difference. First operand 539 states and 730 transitions. Second operand 3 states. [2019-10-15 01:17:37,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:37,523 INFO L93 Difference]: Finished difference Result 1091 states and 1522 transitions. [2019-10-15 01:17:37,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:37,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-15 01:17:37,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:37,531 INFO L225 Difference]: With dead ends: 1091 [2019-10-15 01:17:37,531 INFO L226 Difference]: Without dead ends: 617 [2019-10-15 01:17:37,534 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 01:17:37,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2019-10-15 01:17:37,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 616. [2019-10-15 01:17:37,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-10-15 01:17:37,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 862 transitions. [2019-10-15 01:17:37,573 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 862 transitions. Word has length 170 [2019-10-15 01:17:37,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:37,574 INFO L462 AbstractCegarLoop]: Abstraction has 616 states and 862 transitions. [2019-10-15 01:17:37,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 862 transitions. [2019-10-15 01:17:37,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-15 01:17:37,582 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:37,582 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 01:17:37,583 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:37,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:37,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1941991625, now seen corresponding path program 1 times [2019-10-15 01:17:37,584 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:37,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700944850] [2019-10-15 01:17:37,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:37,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:37,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:37,951 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 01:17:37,951 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700944850] [2019-10-15 01:17:37,952 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:37,952 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:37,952 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643638905] [2019-10-15 01:17:37,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:37,954 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:37,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:37,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:37,955 INFO L87 Difference]: Start difference. First operand 616 states and 862 transitions. Second operand 3 states. [2019-10-15 01:17:38,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:38,011 INFO L93 Difference]: Finished difference Result 1316 states and 1908 transitions. [2019-10-15 01:17:38,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:38,012 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-10-15 01:17:38,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:38,022 INFO L225 Difference]: With dead ends: 1316 [2019-10-15 01:17:38,022 INFO L226 Difference]: Without dead ends: 765 [2019-10-15 01:17:38,025 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 01:17:38,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2019-10-15 01:17:38,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 764. [2019-10-15 01:17:38,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 764 states. [2019-10-15 01:17:38,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1114 transitions. [2019-10-15 01:17:38,072 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1114 transitions. Word has length 171 [2019-10-15 01:17:38,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:38,073 INFO L462 AbstractCegarLoop]: Abstraction has 764 states and 1114 transitions. [2019-10-15 01:17:38,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:38,073 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1114 transitions. [2019-10-15 01:17:38,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-15 01:17:38,078 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:38,078 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] [2019-10-15 01:17:38,079 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:38,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:38,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1566187803, now seen corresponding path program 1 times [2019-10-15 01:17:38,079 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:38,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009324110] [2019-10-15 01:17:38,080 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:38,080 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:38,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:38,254 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 01:17:38,254 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009324110] [2019-10-15 01:17:38,255 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:38,256 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:38,256 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613007120] [2019-10-15 01:17:38,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:38,257 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:38,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:38,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:38,257 INFO L87 Difference]: Start difference. First operand 764 states and 1114 transitions. Second operand 3 states. [2019-10-15 01:17:38,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:38,314 INFO L93 Difference]: Finished difference Result 1748 states and 2644 transitions. [2019-10-15 01:17:38,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:38,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2019-10-15 01:17:38,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:38,322 INFO L225 Difference]: With dead ends: 1748 [2019-10-15 01:17:38,323 INFO L226 Difference]: Without dead ends: 1049 [2019-10-15 01:17:38,325 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 01:17:38,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2019-10-15 01:17:38,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1048. [2019-10-15 01:17:38,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2019-10-15 01:17:38,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1594 transitions. [2019-10-15 01:17:38,375 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1594 transitions. Word has length 172 [2019-10-15 01:17:38,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:38,376 INFO L462 AbstractCegarLoop]: Abstraction has 1048 states and 1594 transitions. [2019-10-15 01:17:38,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:38,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1594 transitions. [2019-10-15 01:17:38,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-15 01:17:38,383 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:38,383 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] [2019-10-15 01:17:38,384 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:38,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:38,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1262921115, now seen corresponding path program 1 times [2019-10-15 01:17:38,384 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:38,385 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142479625] [2019-10-15 01:17:38,385 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:38,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:38,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:38,657 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 01:17:38,658 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142479625] [2019-10-15 01:17:38,658 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:38,659 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:38,659 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368598811] [2019-10-15 01:17:38,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:38,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:38,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:38,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:38,660 INFO L87 Difference]: Start difference. First operand 1048 states and 1594 transitions. Second operand 3 states. [2019-10-15 01:17:38,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:38,722 INFO L93 Difference]: Finished difference Result 1404 states and 2062 transitions. [2019-10-15 01:17:38,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:38,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-10-15 01:17:38,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:38,732 INFO L225 Difference]: With dead ends: 1404 [2019-10-15 01:17:38,732 INFO L226 Difference]: Without dead ends: 1141 [2019-10-15 01:17:38,734 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 01:17:38,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2019-10-15 01:17:38,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1141. [2019-10-15 01:17:38,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2019-10-15 01:17:38,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1717 transitions. [2019-10-15 01:17:38,803 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1717 transitions. Word has length 175 [2019-10-15 01:17:38,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:38,804 INFO L462 AbstractCegarLoop]: Abstraction has 1141 states and 1717 transitions. [2019-10-15 01:17:38,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:38,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1717 transitions. [2019-10-15 01:17:38,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2019-10-15 01:17:38,820 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:38,821 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:38,821 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:38,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:38,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1033929559, now seen corresponding path program 1 times [2019-10-15 01:17:38,822 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:38,823 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670975850] [2019-10-15 01:17:38,823 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:38,823 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:38,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:39,483 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-15 01:17:39,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670975850] [2019-10-15 01:17:39,484 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300080791] [2019-10-15 01:17:39,484 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 01:17:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:40,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 3523 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:17:40,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:17:40,726 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-15 01:17:40,727 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:17:41,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:17:41,605 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:41,714 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:41,991 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-10-15 01:17:41,992 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:17:41,992 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [22, 9] total 35 [2019-10-15 01:17:41,993 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789550392] [2019-10-15 01:17:41,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:17:41,994 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:41,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:17:41,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1100, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:17:41,995 INFO L87 Difference]: Start difference. First operand 1141 states and 1717 transitions. Second operand 9 states. [2019-10-15 01:17:44,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:44,375 INFO L93 Difference]: Finished difference Result 2260 states and 3414 transitions. [2019-10-15 01:17:44,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:17:44,376 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 318 [2019-10-15 01:17:44,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:44,384 INFO L225 Difference]: With dead ends: 2260 [2019-10-15 01:17:44,384 INFO L226 Difference]: Without dead ends: 1155 [2019-10-15 01:17:44,390 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 665 GetRequests, 625 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=111, Invalid=1295, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 01:17:44,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2019-10-15 01:17:44,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1155. [2019-10-15 01:17:44,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1155 states. [2019-10-15 01:17:44,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1735 transitions. [2019-10-15 01:17:44,453 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1735 transitions. Word has length 318 [2019-10-15 01:17:44,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:44,454 INFO L462 AbstractCegarLoop]: Abstraction has 1155 states and 1735 transitions. [2019-10-15 01:17:44,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:17:44,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1735 transitions. [2019-10-15 01:17:44,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2019-10-15 01:17:44,486 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:44,486 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:44,696 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:17:44,696 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:44,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:44,697 INFO L82 PathProgramCache]: Analyzing trace with hash -167353673, now seen corresponding path program 1 times [2019-10-15 01:17:44,698 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:44,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925584755] [2019-10-15 01:17:44,698 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:44,699 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:44,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:45,449 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-15 01:17:45,450 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925584755] [2019-10-15 01:17:45,450 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065010678] [2019-10-15 01:17:45,450 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 01:17:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:46,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 3524 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:17:46,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:17:46,689 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-15 01:17:46,689 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:17:47,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:47,454 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:47,548 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-10-15 01:17:47,548 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:17:47,549 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22, 7] total 31 [2019-10-15 01:17:47,549 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994087546] [2019-10-15 01:17:47,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:17:47,552 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:47,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:17:47,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:17:47,553 INFO L87 Difference]: Start difference. First operand 1155 states and 1735 transitions. Second operand 7 states. [2019-10-15 01:17:48,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:48,572 INFO L93 Difference]: Finished difference Result 2261 states and 3424 transitions. [2019-10-15 01:17:48,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:17:48,573 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 319 [2019-10-15 01:17:48,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:48,582 INFO L225 Difference]: With dead ends: 2261 [2019-10-15 01:17:48,582 INFO L226 Difference]: Without dead ends: 1157 [2019-10-15 01:17:48,589 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 632 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=966, Unknown=0, NotChecked=0, Total=1056 [2019-10-15 01:17:48,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2019-10-15 01:17:48,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1157. [2019-10-15 01:17:48,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2019-10-15 01:17:48,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1738 transitions. [2019-10-15 01:17:48,655 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1738 transitions. Word has length 319 [2019-10-15 01:17:48,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:48,655 INFO L462 AbstractCegarLoop]: Abstraction has 1157 states and 1738 transitions. [2019-10-15 01:17:48,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:17:48,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1738 transitions. [2019-10-15 01:17:48,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2019-10-15 01:17:48,665 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:48,665 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:48,875 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:17:48,875 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:48,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:48,876 INFO L82 PathProgramCache]: Analyzing trace with hash -815589716, now seen corresponding path program 1 times [2019-10-15 01:17:48,876 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:48,877 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488134217] [2019-10-15 01:17:48,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:48,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:48,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-15 01:17:49,522 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488134217] [2019-10-15 01:17:49,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329363610] [2019-10-15 01:17:49,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:17:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:50,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 3525 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:17:50,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:17:50,927 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-10-15 01:17:50,928 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:17:51,511 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:17:51,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:51,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-10-15 01:17:51,857 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:17:51,857 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [22] total 36 [2019-10-15 01:17:51,857 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602555557] [2019-10-15 01:17:51,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:17:51,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:51,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:17:51,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1161, Unknown=0, NotChecked=0, Total=1260 [2019-10-15 01:17:51,860 INFO L87 Difference]: Start difference. First operand 1157 states and 1738 transitions. Second operand 16 states. [2019-10-15 01:17:53,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:53,864 INFO L93 Difference]: Finished difference Result 2265 states and 3418 transitions. [2019-10-15 01:17:53,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:17:53,864 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 320 [2019-10-15 01:17:53,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:53,871 INFO L225 Difference]: With dead ends: 2265 [2019-10-15 01:17:53,872 INFO L226 Difference]: Without dead ends: 1169 [2019-10-15 01:17:53,876 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 629 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=131, Invalid=1429, Unknown=0, NotChecked=0, Total=1560 [2019-10-15 01:17:53,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2019-10-15 01:17:53,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1167. [2019-10-15 01:17:53,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2019-10-15 01:17:53,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1749 transitions. [2019-10-15 01:17:53,941 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1749 transitions. Word has length 320 [2019-10-15 01:17:53,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:53,942 INFO L462 AbstractCegarLoop]: Abstraction has 1167 states and 1749 transitions. [2019-10-15 01:17:53,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:17:53,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1749 transitions. [2019-10-15 01:17:53,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2019-10-15 01:17:53,952 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:53,952 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:54,161 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:17:54,161 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:54,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:54,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1955855704, now seen corresponding path program 2 times [2019-10-15 01:17:54,163 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:54,163 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345134558] [2019-10-15 01:17:54,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:54,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:54,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:54,695 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2019-10-15 01:17:54,696 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345134558] [2019-10-15 01:17:54,696 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130441586] [2019-10-15 01:17:54,696 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:17:55,442 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-15 01:17:55,442 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:17:55,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 2481 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:17:55,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:17:55,665 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-10-15 01:17:55,665 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:17:56,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:56,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:56,414 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-15 01:17:56,415 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:17:56,415 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [22] total 32 [2019-10-15 01:17:56,415 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482469866] [2019-10-15 01:17:56,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:17:56,416 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:56,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:17:56,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=909, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:17:56,417 INFO L87 Difference]: Start difference. First operand 1167 states and 1749 transitions. Second operand 12 states. [2019-10-15 01:17:58,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:58,012 INFO L93 Difference]: Finished difference Result 2256 states and 3406 transitions. [2019-10-15 01:17:58,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:17:58,013 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 321 [2019-10-15 01:17:58,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:58,019 INFO L225 Difference]: With dead ends: 2256 [2019-10-15 01:17:58,019 INFO L226 Difference]: Without dead ends: 1169 [2019-10-15 01:17:58,023 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 636 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=1085, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:17:58,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2019-10-15 01:17:58,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1167. [2019-10-15 01:17:58,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2019-10-15 01:17:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1748 transitions. [2019-10-15 01:17:58,072 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1748 transitions. Word has length 321 [2019-10-15 01:17:58,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:58,073 INFO L462 AbstractCegarLoop]: Abstraction has 1167 states and 1748 transitions. [2019-10-15 01:17:58,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 01:17:58,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1748 transitions. [2019-10-15 01:17:58,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2019-10-15 01:17:58,084 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:58,085 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:58,294 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:17:58,295 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:58,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:58,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1583641059, now seen corresponding path program 3 times [2019-10-15 01:17:58,296 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:58,297 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499102626] [2019-10-15 01:17:58,297 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:58,297 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:58,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-15 01:17:58,784 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499102626] [2019-10-15 01:17:58,784 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656053304] [2019-10-15 01:17:58,784 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:17:59,466 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-15 01:17:59,466 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:17:59,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 2857 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:17:59,480 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:17:59,718 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-10-15 01:17:59,719 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:18:00,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:18:00,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:00,639 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:00,783 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-15 01:18:00,784 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:18:00,784 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [22] total 35 [2019-10-15 01:18:00,784 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395310538] [2019-10-15 01:18:00,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:18:00,786 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:00,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:18:00,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1100, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:18:00,786 INFO L87 Difference]: Start difference. First operand 1167 states and 1748 transitions. Second operand 15 states. [2019-10-15 01:18:03,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:03,040 INFO L93 Difference]: Finished difference Result 2263 states and 3413 transitions. [2019-10-15 01:18:03,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:18:03,041 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 322 [2019-10-15 01:18:03,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:03,048 INFO L225 Difference]: With dead ends: 2263 [2019-10-15 01:18:03,048 INFO L226 Difference]: Without dead ends: 1171 [2019-10-15 01:18:03,052 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 633 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=1363, Unknown=0, NotChecked=0, Total=1482 [2019-10-15 01:18:03,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2019-10-15 01:18:03,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1167. [2019-10-15 01:18:03,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2019-10-15 01:18:03,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1747 transitions. [2019-10-15 01:18:03,097 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1747 transitions. Word has length 322 [2019-10-15 01:18:03,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:03,098 INFO L462 AbstractCegarLoop]: Abstraction has 1167 states and 1747 transitions. [2019-10-15 01:18:03,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:18:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1747 transitions. [2019-10-15 01:18:03,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2019-10-15 01:18:03,104 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:03,105 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:03,306 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:18:03,307 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:03,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:03,308 INFO L82 PathProgramCache]: Analyzing trace with hash -452917154, now seen corresponding path program 1 times [2019-10-15 01:18:03,308 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:03,308 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763075649] [2019-10-15 01:18:03,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:03,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:03,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-15 01:18:03,854 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763075649] [2019-10-15 01:18:03,855 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146009456] [2019-10-15 01:18:03,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true