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-f4eb214f-m [2019-10-13 21:18:27,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:18:27,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:18:27,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:18:27,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:18:27,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:18:27,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:18:27,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:18:27,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:18:27,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:18:27,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:18:27,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:18:27,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:18:27,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:18:27,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:18:27,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:18:27,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:18:27,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:18:27,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:18:27,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:18:27,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:18:27,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:18:27,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:18:27,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:18:27,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:18:27,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:18:27,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:18:27,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:18:27,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:18:27,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:18:27,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:18:27,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:18:27,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:18:27,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:18:27,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:18:27,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:18:27,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:18:27,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:18:27,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:18:27,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:18:27,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:18:27,216 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 [2019-10-13 21:18:27,230 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:18:27,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:18:27,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:18:27,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:18:27,232 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:18:27,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:18:27,233 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:18:27,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:18:27,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:18:27,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:18:27,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:18:27,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:18:27,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:18:27,234 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:18:27,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:18:27,234 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:18:27,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:18:27,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:18:27,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:18:27,235 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:18:27,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:18:27,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:18:27,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:18:27,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:18:27,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:18:27,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:18:27,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:18:27,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:18:27,237 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 [2019-10-13 21:18:27,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:18:27,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:18:27,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:18:27,519 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:18:27,519 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:18:27,520 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product30.cil.c [2019-10-13 21:18:27,589 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af6484931/ce399919925f434386261fcc7ce0f1df/FLAG999e334a8 [2019-10-13 21:18:28,293 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:18:28,294 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product30.cil.c [2019-10-13 21:18:28,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af6484931/ce399919925f434386261fcc7ce0f1df/FLAG999e334a8 [2019-10-13 21:18:28,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af6484931/ce399919925f434386261fcc7ce0f1df [2019-10-13 21:18:28,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:18:28,512 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:18:28,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:18:28,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:18:28,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:18:28,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:18:28" (1/1) ... [2019-10-13 21:18:28,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bc441a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:28, skipping insertion in model container [2019-10-13 21:18:28,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:18:28" (1/1) ... [2019-10-13 21:18:28,528 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:18:28,593 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:18:29,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:18:29,382 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:18:29,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:18:29,636 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:18:29,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:29 WrapperNode [2019-10-13 21:18:29,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:18:29,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:18:29,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:18:29,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:18:29,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:29" (1/1) ... [2019-10-13 21:18:29,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:29" (1/1) ... [2019-10-13 21:18:29,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:29" (1/1) ... [2019-10-13 21:18:29,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:29" (1/1) ... [2019-10-13 21:18:29,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:29" (1/1) ... [2019-10-13 21:18:29,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:29" (1/1) ... [2019-10-13 21:18:29,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:29" (1/1) ... [2019-10-13 21:18:29,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:18:29,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:18:29,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:18:29,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:18:29,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:29" (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 [2019-10-13 21:18:29,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:18:29,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:18:29,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:18:29,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:18:29,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:18:29,935 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:18:29,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:18:29,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:18:29,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:18:29,938 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:18:29,938 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:18:29,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:18:29,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:18:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:18:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:18:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:18:29,943 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:18:29,944 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:18:29,944 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:18:29,944 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:18:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:18:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:18:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:18:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 21:18:29,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 21:18:29,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:18:29,946 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:18:29,946 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 21:18:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:18:29,948 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:18:29,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:18:29,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:18:29,949 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:18:29,949 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:18:29,949 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:18:29,949 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:18:29,950 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:18:29,950 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:18:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:18:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:18:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:18:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:18:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:18:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:18:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:18:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:18:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:18:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:18:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:18:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:18:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:18:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:18:29,955 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:18:29,955 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:18:29,955 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:18:29,956 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:18:29,956 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:18:29,956 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:18:29,956 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:18:29,956 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:18:29,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:18:29,957 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:18:29,958 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:18:29,958 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:18:29,958 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:18:29,958 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:18:29,958 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:18:29,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:18:29,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:18:29,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:18:29,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:18:29,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:18:29,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:18:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:18:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:18:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:18:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:18:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:18:29,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:18:29,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:18:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:18:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:18:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:18:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:18:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:18:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:18:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:18:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:18:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:18:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:18:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:18:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:18:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:18:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:18:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:18:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:18:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:18:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:18:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:18:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:18:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:18:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:18:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:18:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:18:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:18:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:18:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:18:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:18:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:18:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:18:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:18:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:18:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:18:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:18:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:18:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:18:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:18:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:18:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:18:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:18:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:18:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:18:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:18:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:18:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:18:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:18:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:18:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:18:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:18:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:18:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:18:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:18:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:18:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:18:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:18:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:18:29,975 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:18:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:18:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:18:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:18:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:18:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:18:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:18:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:18:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:18:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:18:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:18:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:18:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:18:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:18:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:18:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:18:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:18:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:18:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:18:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:18:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:18:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:18:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:18:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:18:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:18:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 21:18:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 21:18:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:18:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:18:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:18:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:18:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:18:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:18:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:18:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:18:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:18:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:18:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:18:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:18:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:18:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:18:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 21:18:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:18:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:18:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:18:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:18:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:18:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:18:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:18:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:18:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:18:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:18:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:18:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:18:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:18:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:18:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:18:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:18:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:18:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:18:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:18:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:18:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:18:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:18:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:18:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:18:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:18:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:18:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:18:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:18:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:18:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:18:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:18:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:18:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:18:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:18:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:18:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:18:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:18:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:18:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:18:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:18:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:18:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:18:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:18:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:18:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:18:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:18:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:18:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:18:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:18:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:18:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:18:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:18:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:18:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:18:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:18:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:18:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:18:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:18:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:18:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:18:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:18:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:18:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:18:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:18:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:18:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:18:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:18:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:18:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:18:32,341 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:18:32,342 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:18:32,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:18:32 BoogieIcfgContainer [2019-10-13 21:18:32,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:18:32,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:18:32,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:18:32,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:18:32,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:18:28" (1/3) ... [2019-10-13 21:18:32,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8bf586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:18:32, skipping insertion in model container [2019-10-13 21:18:32,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:29" (2/3) ... [2019-10-13 21:18:32,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8bf586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:18:32, skipping insertion in model container [2019-10-13 21:18:32,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:18:32" (3/3) ... [2019-10-13 21:18:32,353 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product30.cil.c [2019-10-13 21:18:32,364 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:18:32,376 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:18:32,388 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:18:32,425 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:18:32,425 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:18:32,425 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:18:32,425 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:18:32,425 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:18:32,426 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:18:32,426 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:18:32,426 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:18:32,455 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states. [2019-10-13 21:18:32,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-13 21:18:32,478 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:32,480 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] [2019-10-13 21:18:32,482 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:32,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:32,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1306914871, now seen corresponding path program 1 times [2019-10-13 21:18:32,498 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:32,498 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037239195] [2019-10-13 21:18:32,499 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:32,499 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:32,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:33,197 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:33,198 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037239195] [2019-10-13 21:18:33,200 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:33,200 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:18:33,201 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296317215] [2019-10-13 21:18:33,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:18:33,210 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:33,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:18:33,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:18:33,230 INFO L87 Difference]: Start difference. First operand 548 states. Second operand 2 states. [2019-10-13 21:18:33,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:33,330 INFO L93 Difference]: Finished difference Result 782 states and 1030 transitions. [2019-10-13 21:18:33,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:18:33,332 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 158 [2019-10-13 21:18:33,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:33,355 INFO L225 Difference]: With dead ends: 782 [2019-10-13 21:18:33,356 INFO L226 Difference]: Without dead ends: 497 [2019-10-13 21:18:33,367 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 [2019-10-13 21:18:33,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2019-10-13 21:18:33,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 497. [2019-10-13 21:18:33,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2019-10-13 21:18:33,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 659 transitions. [2019-10-13 21:18:33,507 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 659 transitions. Word has length 158 [2019-10-13 21:18:33,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:33,510 INFO L462 AbstractCegarLoop]: Abstraction has 497 states and 659 transitions. [2019-10-13 21:18:33,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:18:33,511 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 659 transitions. [2019-10-13 21:18:33,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 21:18:33,519 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:33,519 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] [2019-10-13 21:18:33,520 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:33,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:33,520 INFO L82 PathProgramCache]: Analyzing trace with hash -243585383, now seen corresponding path program 1 times [2019-10-13 21:18:33,520 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:33,521 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983470145] [2019-10-13 21:18:33,521 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:33,521 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:33,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:33,760 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:33,761 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983470145] [2019-10-13 21:18:33,761 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:33,761 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:33,761 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190057068] [2019-10-13 21:18:33,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:33,771 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:33,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:33,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:33,772 INFO L87 Difference]: Start difference. First operand 497 states and 659 transitions. Second operand 3 states. [2019-10-13 21:18:33,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:33,865 INFO L93 Difference]: Finished difference Result 765 states and 998 transitions. [2019-10-13 21:18:33,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:33,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-13 21:18:33,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:33,879 INFO L225 Difference]: With dead ends: 765 [2019-10-13 21:18:33,879 INFO L226 Difference]: Without dead ends: 500 [2019-10-13 21:18:33,883 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 [2019-10-13 21:18:33,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2019-10-13 21:18:33,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 499. [2019-10-13 21:18:33,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2019-10-13 21:18:33,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 661 transitions. [2019-10-13 21:18:33,966 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 661 transitions. Word has length 159 [2019-10-13 21:18:33,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:33,967 INFO L462 AbstractCegarLoop]: Abstraction has 499 states and 661 transitions. [2019-10-13 21:18:33,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:33,968 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 661 transitions. [2019-10-13 21:18:33,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-13 21:18:33,974 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:33,974 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] [2019-10-13 21:18:33,974 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:33,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:33,975 INFO L82 PathProgramCache]: Analyzing trace with hash -614600471, now seen corresponding path program 1 times [2019-10-13 21:18:33,975 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:33,975 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667125795] [2019-10-13 21:18:33,976 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:33,976 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:33,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:34,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667125795] [2019-10-13 21:18:34,222 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:34,222 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:34,222 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920747387] [2019-10-13 21:18:34,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:34,226 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:34,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:34,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:34,227 INFO L87 Difference]: Start difference. First operand 499 states and 661 transitions. Second operand 3 states. [2019-10-13 21:18:34,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:34,285 INFO L93 Difference]: Finished difference Result 974 states and 1320 transitions. [2019-10-13 21:18:34,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:34,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2019-10-13 21:18:34,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:34,296 INFO L225 Difference]: With dead ends: 974 [2019-10-13 21:18:34,296 INFO L226 Difference]: Without dead ends: 540 [2019-10-13 21:18:34,299 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 [2019-10-13 21:18:34,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-10-13 21:18:34,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 539. [2019-10-13 21:18:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-10-13 21:18:34,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 730 transitions. [2019-10-13 21:18:34,326 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 730 transitions. Word has length 169 [2019-10-13 21:18:34,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:34,327 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 730 transitions. [2019-10-13 21:18:34,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:34,327 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 730 transitions. [2019-10-13 21:18:34,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-13 21:18:34,332 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:34,332 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] [2019-10-13 21:18:34,333 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:34,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:34,333 INFO L82 PathProgramCache]: Analyzing trace with hash -790439685, now seen corresponding path program 1 times [2019-10-13 21:18:34,334 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:34,334 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027769291] [2019-10-13 21:18:34,334 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:34,334 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:34,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:34,533 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027769291] [2019-10-13 21:18:34,533 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:34,533 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:34,534 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629815187] [2019-10-13 21:18:34,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:34,535 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:34,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:34,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:34,536 INFO L87 Difference]: Start difference. First operand 539 states and 730 transitions. Second operand 3 states. [2019-10-13 21:18:34,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:34,581 INFO L93 Difference]: Finished difference Result 1091 states and 1522 transitions. [2019-10-13 21:18:34,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:34,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-13 21:18:34,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:34,588 INFO L225 Difference]: With dead ends: 1091 [2019-10-13 21:18:34,589 INFO L226 Difference]: Without dead ends: 617 [2019-10-13 21:18:34,592 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 [2019-10-13 21:18:34,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2019-10-13 21:18:34,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 616. [2019-10-13 21:18:34,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-10-13 21:18:34,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 862 transitions. [2019-10-13 21:18:34,637 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 862 transitions. Word has length 170 [2019-10-13 21:18:34,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:34,638 INFO L462 AbstractCegarLoop]: Abstraction has 616 states and 862 transitions. [2019-10-13 21:18:34,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:34,638 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 862 transitions. [2019-10-13 21:18:34,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-13 21:18:34,644 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:34,644 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] [2019-10-13 21:18:34,645 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:34,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:34,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1941991625, now seen corresponding path program 1 times [2019-10-13 21:18:34,646 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:34,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553725811] [2019-10-13 21:18:34,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:34,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:34,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:34,943 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:34,945 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553725811] [2019-10-13 21:18:34,945 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:34,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:34,945 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646098307] [2019-10-13 21:18:34,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:34,946 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:34,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:34,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:34,948 INFO L87 Difference]: Start difference. First operand 616 states and 862 transitions. Second operand 3 states. [2019-10-13 21:18:34,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:34,989 INFO L93 Difference]: Finished difference Result 1316 states and 1908 transitions. [2019-10-13 21:18:34,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:34,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-10-13 21:18:34,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:34,995 INFO L225 Difference]: With dead ends: 1316 [2019-10-13 21:18:34,995 INFO L226 Difference]: Without dead ends: 765 [2019-10-13 21:18:34,997 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 [2019-10-13 21:18:34,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2019-10-13 21:18:35,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 764. [2019-10-13 21:18:35,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 764 states. [2019-10-13 21:18:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1114 transitions. [2019-10-13 21:18:35,029 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1114 transitions. Word has length 171 [2019-10-13 21:18:35,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:35,030 INFO L462 AbstractCegarLoop]: Abstraction has 764 states and 1114 transitions. [2019-10-13 21:18:35,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:35,030 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1114 transitions. [2019-10-13 21:18:35,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-13 21:18:35,034 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:35,035 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] [2019-10-13 21:18:35,035 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:35,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:35,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1566187803, now seen corresponding path program 1 times [2019-10-13 21:18:35,036 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:35,036 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331181750] [2019-10-13 21:18:35,036 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:35,036 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:35,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:35,180 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:35,180 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331181750] [2019-10-13 21:18:35,180 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:35,181 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:35,181 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189600364] [2019-10-13 21:18:35,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:35,182 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:35,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:35,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:35,182 INFO L87 Difference]: Start difference. First operand 764 states and 1114 transitions. Second operand 3 states. [2019-10-13 21:18:35,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:35,230 INFO L93 Difference]: Finished difference Result 1748 states and 2644 transitions. [2019-10-13 21:18:35,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:35,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2019-10-13 21:18:35,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:35,238 INFO L225 Difference]: With dead ends: 1748 [2019-10-13 21:18:35,238 INFO L226 Difference]: Without dead ends: 1049 [2019-10-13 21:18:35,241 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 [2019-10-13 21:18:35,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2019-10-13 21:18:35,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1048. [2019-10-13 21:18:35,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2019-10-13 21:18:35,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1594 transitions. [2019-10-13 21:18:35,284 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1594 transitions. Word has length 172 [2019-10-13 21:18:35,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:35,284 INFO L462 AbstractCegarLoop]: Abstraction has 1048 states and 1594 transitions. [2019-10-13 21:18:35,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:35,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1594 transitions. [2019-10-13 21:18:35,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-13 21:18:35,290 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:35,290 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] [2019-10-13 21:18:35,291 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:35,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:35,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1262921115, now seen corresponding path program 1 times [2019-10-13 21:18:35,291 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:35,291 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576052282] [2019-10-13 21:18:35,292 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:35,292 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:35,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:35,624 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:18:35,625 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576052282] [2019-10-13 21:18:35,625 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:35,625 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:35,626 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64189583] [2019-10-13 21:18:35,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:35,627 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:35,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:35,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:35,628 INFO L87 Difference]: Start difference. First operand 1048 states and 1594 transitions. Second operand 3 states. [2019-10-13 21:18:35,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:35,695 INFO L93 Difference]: Finished difference Result 1404 states and 2062 transitions. [2019-10-13 21:18:35,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:35,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-10-13 21:18:35,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:35,710 INFO L225 Difference]: With dead ends: 1404 [2019-10-13 21:18:35,710 INFO L226 Difference]: Without dead ends: 1141 [2019-10-13 21:18:35,715 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 [2019-10-13 21:18:35,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2019-10-13 21:18:35,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1141. [2019-10-13 21:18:35,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2019-10-13 21:18:35,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1717 transitions. [2019-10-13 21:18:35,800 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1717 transitions. Word has length 175 [2019-10-13 21:18:35,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:35,804 INFO L462 AbstractCegarLoop]: Abstraction has 1141 states and 1717 transitions. [2019-10-13 21:18:35,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:35,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1717 transitions. [2019-10-13 21:18:35,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2019-10-13 21:18:35,819 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:35,819 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] [2019-10-13 21:18:35,820 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:35,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:35,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1033929559, now seen corresponding path program 1 times [2019-10-13 21:18:35,821 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:35,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397011811] [2019-10-13 21:18:35,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:35,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:35,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:36,480 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-13 21:18:36,480 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397011811] [2019-10-13 21:18:36,481 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629639316] [2019-10-13 21:18:36,481 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 [2019-10-13 21:18:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:37,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 3523 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:18:37,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:18:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-13 21:18:37,696 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:18:38,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:18:38,664 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:38,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:39,032 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-10-13 21:18:39,033 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:18:39,033 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [22, 9] total 35 [2019-10-13 21:18:39,033 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786844023] [2019-10-13 21:18:39,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:18:39,034 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:39,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:18:39,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1100, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 21:18:39,036 INFO L87 Difference]: Start difference. First operand 1141 states and 1717 transitions. Second operand 9 states. [2019-10-13 21:18:41,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:41,370 INFO L93 Difference]: Finished difference Result 2260 states and 3414 transitions. [2019-10-13 21:18:41,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:18:41,371 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 318 [2019-10-13 21:18:41,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:41,378 INFO L225 Difference]: With dead ends: 2260 [2019-10-13 21:18:41,378 INFO L226 Difference]: Without dead ends: 1155 [2019-10-13 21:18:41,382 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 665 GetRequests, 625 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=1295, Unknown=0, NotChecked=0, Total=1406 [2019-10-13 21:18:41,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2019-10-13 21:18:41,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1155. [2019-10-13 21:18:41,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1155 states. [2019-10-13 21:18:41,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1735 transitions. [2019-10-13 21:18:41,456 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1735 transitions. Word has length 318 [2019-10-13 21:18:41,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:41,456 INFO L462 AbstractCegarLoop]: Abstraction has 1155 states and 1735 transitions. [2019-10-13 21:18:41,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:18:41,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1735 transitions. [2019-10-13 21:18:41,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2019-10-13 21:18:41,465 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:41,466 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] [2019-10-13 21:18:41,675 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:18:41,676 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:41,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:41,677 INFO L82 PathProgramCache]: Analyzing trace with hash -167353673, now seen corresponding path program 1 times [2019-10-13 21:18:41,677 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:41,678 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799343999] [2019-10-13 21:18:41,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:41,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:41,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:42,395 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-13 21:18:42,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799343999] [2019-10-13 21:18:42,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901641638] [2019-10-13 21:18:42,396 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 [2019-10-13 21:18:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:43,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 3524 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:18:43,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:18:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-13 21:18:43,513 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:18:44,158 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:44,236 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:44,353 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-10-13 21:18:44,354 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:18:44,354 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22, 7] total 31 [2019-10-13 21:18:44,355 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465475962] [2019-10-13 21:18:44,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:18:44,356 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:44,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:18:44,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2019-10-13 21:18:44,357 INFO L87 Difference]: Start difference. First operand 1155 states and 1735 transitions. Second operand 7 states. [2019-10-13 21:18:45,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:45,501 INFO L93 Difference]: Finished difference Result 2261 states and 3424 transitions. [2019-10-13 21:18:45,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:18:45,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 319 [2019-10-13 21:18:45,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:45,511 INFO L225 Difference]: With dead ends: 2261 [2019-10-13 21:18:45,512 INFO L226 Difference]: Without dead ends: 1157 [2019-10-13 21:18:45,519 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 632 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=966, Unknown=0, NotChecked=0, Total=1056 [2019-10-13 21:18:45,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2019-10-13 21:18:45,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1157. [2019-10-13 21:18:45,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2019-10-13 21:18:45,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1738 transitions. [2019-10-13 21:18:45,582 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1738 transitions. Word has length 319 [2019-10-13 21:18:45,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:45,583 INFO L462 AbstractCegarLoop]: Abstraction has 1157 states and 1738 transitions. [2019-10-13 21:18:45,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:18:45,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1738 transitions. [2019-10-13 21:18:45,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2019-10-13 21:18:45,593 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:45,594 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] [2019-10-13 21:18:45,802 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:18:45,803 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:45,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:45,803 INFO L82 PathProgramCache]: Analyzing trace with hash -815589716, now seen corresponding path program 1 times [2019-10-13 21:18:45,804 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:45,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537442639] [2019-10-13 21:18:45,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:45,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:45,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:46,514 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-13 21:18:46,519 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537442639] [2019-10-13 21:18:46,520 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933863019] [2019-10-13 21:18:46,520 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 [2019-10-13 21:18:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:47,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 3525 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:18:47,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:18:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-10-13 21:18:47,901 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:18:48,563 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:18:48,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:48,752 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:48,989 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-10-13 21:18:48,989 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:18:48,990 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [22] total 36 [2019-10-13 21:18:48,990 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122889550] [2019-10-13 21:18:48,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 21:18:48,991 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:48,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 21:18:48,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1161, Unknown=0, NotChecked=0, Total=1260 [2019-10-13 21:18:48,992 INFO L87 Difference]: Start difference. First operand 1157 states and 1738 transitions. Second operand 16 states. [2019-10-13 21:18:50,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:50,679 INFO L93 Difference]: Finished difference Result 2265 states and 3418 transitions. [2019-10-13 21:18:50,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 21:18:50,679 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 320 [2019-10-13 21:18:50,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:50,690 INFO L225 Difference]: With dead ends: 2265 [2019-10-13 21:18:50,690 INFO L226 Difference]: Without dead ends: 1169 [2019-10-13 21:18:50,695 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 629 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=1429, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 21:18:50,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2019-10-13 21:18:50,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1167. [2019-10-13 21:18:50,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2019-10-13 21:18:50,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1749 transitions. [2019-10-13 21:18:50,774 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1749 transitions. Word has length 320 [2019-10-13 21:18:50,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:50,776 INFO L462 AbstractCegarLoop]: Abstraction has 1167 states and 1749 transitions. [2019-10-13 21:18:50,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 21:18:50,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1749 transitions. [2019-10-13 21:18:50,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2019-10-13 21:18:50,796 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:50,796 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] [2019-10-13 21:18:51,008 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:18:51,008 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:51,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:51,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1955855704, now seen corresponding path program 2 times [2019-10-13 21:18:51,009 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:51,010 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294041604] [2019-10-13 21:18:51,010 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:51,010 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:51,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2019-10-13 21:18:51,578 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294041604] [2019-10-13 21:18:51,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537310556] [2019-10-13 21:18:51,579 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 [2019-10-13 21:18:52,395 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-13 21:18:52,396 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:18:52,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 2481 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:18:52,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:18:52,628 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-10-13 21:18:52,628 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:18:53,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:53,267 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:53,360 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-13 21:18:53,361 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:18:53,361 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [22] total 32 [2019-10-13 21:18:53,361 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742327900] [2019-10-13 21:18:53,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 21:18:53,363 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:53,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 21:18:53,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=909, Unknown=0, NotChecked=0, Total=992 [2019-10-13 21:18:53,364 INFO L87 Difference]: Start difference. First operand 1167 states and 1749 transitions. Second operand 12 states. [2019-10-13 21:18:55,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:55,132 INFO L93 Difference]: Finished difference Result 2256 states and 3406 transitions. [2019-10-13 21:18:55,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:18:55,132 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 321 [2019-10-13 21:18:55,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:55,141 INFO L225 Difference]: With dead ends: 2256 [2019-10-13 21:18:55,141 INFO L226 Difference]: Without dead ends: 1169 [2019-10-13 21:18:55,148 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 [2019-10-13 21:18:55,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2019-10-13 21:18:55,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1167. [2019-10-13 21:18:55,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2019-10-13 21:18:55,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1748 transitions. [2019-10-13 21:18:55,226 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1748 transitions. Word has length 321 [2019-10-13 21:18:55,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:55,227 INFO L462 AbstractCegarLoop]: Abstraction has 1167 states and 1748 transitions. [2019-10-13 21:18:55,227 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 21:18:55,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1748 transitions. [2019-10-13 21:18:55,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2019-10-13 21:18:55,239 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:55,239 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] [2019-10-13 21:18:55,450 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:18:55,450 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:55,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:55,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1583641059, now seen corresponding path program 3 times [2019-10-13 21:18:55,451 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:55,452 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194080761] [2019-10-13 21:18:55,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:55,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:55,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:55,952 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-13 21:18:55,954 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194080761] [2019-10-13 21:18:55,954 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115057066] [2019-10-13 21:18:55,955 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 [2019-10-13 21:18:56,642 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-13 21:18:56,643 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:18:56,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 2857 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:18:56,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:18:56,947 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-10-13 21:18:56,947 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:18:57,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:18:57,641 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:57,731 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:57,887 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-13 21:18:57,888 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:18:57,888 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [22] total 35 [2019-10-13 21:18:57,888 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686225063] [2019-10-13 21:18:57,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:18:57,889 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:57,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:18:57,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1100, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 21:18:57,890 INFO L87 Difference]: Start difference. First operand 1167 states and 1748 transitions. Second operand 15 states. [2019-10-13 21:19:00,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:00,003 INFO L93 Difference]: Finished difference Result 2263 states and 3413 transitions. [2019-10-13 21:19:00,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 21:19:00,009 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 322 [2019-10-13 21:19:00,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:00,017 INFO L225 Difference]: With dead ends: 2263 [2019-10-13 21:19:00,017 INFO L226 Difference]: Without dead ends: 1171 [2019-10-13 21:19:00,022 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 633 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=119, Invalid=1363, Unknown=0, NotChecked=0, Total=1482 [2019-10-13 21:19:00,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2019-10-13 21:19:00,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1167. [2019-10-13 21:19:00,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2019-10-13 21:19:00,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1747 transitions. [2019-10-13 21:19:00,072 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1747 transitions. Word has length 322 [2019-10-13 21:19:00,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:00,073 INFO L462 AbstractCegarLoop]: Abstraction has 1167 states and 1747 transitions. [2019-10-13 21:19:00,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:19:00,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1747 transitions. [2019-10-13 21:19:00,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2019-10-13 21:19:00,080 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:00,081 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] [2019-10-13 21:19:00,297 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:19:00,297 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:00,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:00,298 INFO L82 PathProgramCache]: Analyzing trace with hash -452917154, now seen corresponding path program 1 times [2019-10-13 21:19:00,298 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:00,299 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8785045] [2019-10-13 21:19:00,299 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:00,299 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:00,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-13 21:19:00,802 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8785045] [2019-10-13 21:19:00,802 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189450009] [2019-10-13 21:19:00,802 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