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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:53:06,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:53:06,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:53:06,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:53:06,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:53:06,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:53:06,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:53:06,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:53:06,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:53:06,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:53:06,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:53:06,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:53:06,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:53:06,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:53:06,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:53:06,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:53:06,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:53:06,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:53:06,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:53:06,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:53:06,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:53:06,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:53:06,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:53:06,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:53:06,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:53:06,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:53:06,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:53:06,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:53:06,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:53:06,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:53:06,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:53:06,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:53:06,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:53:06,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:53:06,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:53:06,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:53:06,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:53:06,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:53:06,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:53:06,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:53:06,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:53:06,235 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:53:06,249 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:53:06,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:53:06,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:53:06,250 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:53:06,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:53:06,251 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:53:06,251 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:53:06,251 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:53:06,251 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:53:06,251 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:53:06,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:53:06,252 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:53:06,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:53:06,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:53:06,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:53:06,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:53:06,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:53:06,253 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:53:06,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:53:06,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:53:06,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:53:06,254 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:53:06,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:53:06,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:53:06,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:53:06,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:53:06,255 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:53:06,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:53:06,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:53:06,256 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:53:06,284 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:53:06,297 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:53:06,300 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:53:06,302 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:53:06,302 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:53:06,303 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product19.cil.c [2019-10-03 02:53:06,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0300cb0cf/c7bd03a4f12b459d9c092a93fbeeb80c/FLAG196c038d6 [2019-10-03 02:53:06,979 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:53:06,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product19.cil.c [2019-10-03 02:53:07,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0300cb0cf/c7bd03a4f12b459d9c092a93fbeeb80c/FLAG196c038d6 [2019-10-03 02:53:07,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0300cb0cf/c7bd03a4f12b459d9c092a93fbeeb80c [2019-10-03 02:53:07,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:53:07,191 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:53:07,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:53:07,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:53:07,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:53:07,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:53:07" (1/1) ... [2019-10-03 02:53:07,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b94beeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:07, skipping insertion in model container [2019-10-03 02:53:07,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:53:07" (1/1) ... [2019-10-03 02:53:07,209 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:53:07,286 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:53:07,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:53:07,979 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:53:08,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:53:08,162 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:53:08,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08 WrapperNode [2019-10-03 02:53:08,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:53:08,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:53:08,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:53:08,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:53:08,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:53:08,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:53:08,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:53:08,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:53:08,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (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 [2019-10-03 02:53:08,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:53:08,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:53:08,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:53:08,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:53:08,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-03 02:53:08,405 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:53:08,405 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:53:08,405 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:53:08,405 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:53:08,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:53:08,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:53:08,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:53:08,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:53:08,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:53:08,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:53:08,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-03 02:53:08,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-03 02:53:08,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-03 02:53:08,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-03 02:53:08,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-03 02:53:08,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-03 02:53:08,409 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-03 02:53:08,409 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-03 02:53:08,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:53:08,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:53:08,409 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-03 02:53:08,410 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-03 02:53:08,410 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-03 02:53:08,410 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-03 02:53:08,410 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-03 02:53:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-03 02:53:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-03 02:53:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-03 02:53:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-03 02:53:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-03 02:53:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:53:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-03 02:53:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-03 02:53:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-03 02:53:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-03 02:53:08,413 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-03 02:53:08,413 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-03 02:53:08,413 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-03 02:53:08,413 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-03 02:53:08,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-03 02:53:08,414 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-03 02:53:08,414 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-03 02:53:08,414 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-03 02:53:08,414 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-03 02:53:08,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-03 02:53:08,414 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-03 02:53:08,414 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-03 02:53:08,415 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-03 02:53:08,415 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-03 02:53:08,415 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-03 02:53:08,415 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-03 02:53:08,415 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-03 02:53:08,415 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-03 02:53:08,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-03 02:53:08,416 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-03 02:53:08,416 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-03 02:53:08,416 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-03 02:53:08,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-03 02:53:08,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-03 02:53:08,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-03 02:53:08,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-03 02:53:08,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-03 02:53:08,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-03 02:53:08,417 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-03 02:53:08,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-03 02:53:08,418 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-03 02:53:08,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-03 02:53:08,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-03 02:53:08,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-03 02:53:08,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-03 02:53:08,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-03 02:53:08,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-03 02:53:08,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-03 02:53:08,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-03 02:53:08,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-03 02:53:08,419 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-03 02:53:08,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-03 02:53:08,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-03 02:53:08,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-03 02:53:08,420 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-03 02:53:08,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-03 02:53:08,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-03 02:53:08,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-03 02:53:08,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-03 02:53:08,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-03 02:53:08,421 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-03 02:53:08,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-03 02:53:08,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-03 02:53:08,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-03 02:53:08,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-03 02:53:08,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-03 02:53:08,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-03 02:53:08,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-03 02:53:08,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-03 02:53:08,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-03 02:53:08,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-03 02:53:08,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-03 02:53:08,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-03 02:53:08,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-03 02:53:08,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-03 02:53:08,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-03 02:53:08,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-03 02:53:08,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-03 02:53:08,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-03 02:53:08,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-03 02:53:08,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-03 02:53:08,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:53:08,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:53:08,424 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:53:08,424 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-03 02:53:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-03 02:53:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-03 02:53:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-03 02:53:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:53:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:53:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:53:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:53:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:53:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:53:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:53:08,427 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:53:08,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:53:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:53:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:53:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:53:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:53:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:53:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:53:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:53:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:53:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:53:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:53:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:53:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:53:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:53:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-03 02:53:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-03 02:53:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-03 02:53:08,440 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-03 02:53:08,440 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-03 02:53:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-03 02:53:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-03 02:53:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-03 02:53:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-03 02:53:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-03 02:53:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-03 02:53:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-03 02:53:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-03 02:53:08,442 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-03 02:53:08,442 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-03 02:53:08,442 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-03 02:53:08,442 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-03 02:53:08,443 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-03 02:53:08,443 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-03 02:53:08,443 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:53:08,443 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:53:08,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:53:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-03 02:53:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-03 02:53:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-03 02:53:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-03 02:53:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-03 02:53:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-03 02:53:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-03 02:53:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-03 02:53:08,445 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-03 02:53:08,445 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-03 02:53:08,445 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-03 02:53:08,445 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-03 02:53:08,445 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-03 02:53:08,445 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-03 02:53:08,445 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-03 02:53:08,445 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-03 02:53:08,446 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-03 02:53:08,446 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-03 02:53:08,446 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-03 02:53:08,446 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-03 02:53:08,446 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-03 02:53:08,446 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-03 02:53:08,446 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-03 02:53:08,446 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-03 02:53:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-03 02:53:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-03 02:53:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-03 02:53:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-03 02:53:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-03 02:53:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-03 02:53:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-03 02:53:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-03 02:53:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-03 02:53:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-03 02:53:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-03 02:53:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-03 02:53:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-03 02:53:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-03 02:53:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-03 02:53:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-03 02:53:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-03 02:53:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-03 02:53:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-03 02:53:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-03 02:53:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-03 02:53:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-03 02:53:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-03 02:53:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-03 02:53:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-03 02:53:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-03 02:53:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-03 02:53:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-03 02:53:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-03 02:53:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-03 02:53:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-03 02:53:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-03 02:53:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-03 02:53:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-03 02:53:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-03 02:53:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-03 02:53:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-03 02:53:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-03 02:53:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-03 02:53:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-03 02:53:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-03 02:53:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-03 02:53:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-03 02:53:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-03 02:53:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-03 02:53:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-03 02:53:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-03 02:53:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-03 02:53:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:53:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:53:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:53:10,538 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:53:10,538 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:53:10,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:53:10 BoogieIcfgContainer [2019-10-03 02:53:10,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:53:10,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:53:10,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:53:10,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:53:10,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:53:07" (1/3) ... [2019-10-03 02:53:10,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31de6257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:53:10, skipping insertion in model container [2019-10-03 02:53:10,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (2/3) ... [2019-10-03 02:53:10,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31de6257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:53:10, skipping insertion in model container [2019-10-03 02:53:10,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:53:10" (3/3) ... [2019-10-03 02:53:10,549 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product19.cil.c [2019-10-03 02:53:10,559 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:53:10,573 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:53:10,591 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:53:10,629 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:53:10,629 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:53:10,629 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:53:10,630 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:53:10,630 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:53:10,630 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:53:10,630 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:53:10,630 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:53:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states. [2019-10-03 02:53:10,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-03 02:53:10,708 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:10,710 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:10,716 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:10,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:10,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1092646589, now seen corresponding path program 1 times [2019-10-03 02:53:10,728 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:10,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:10,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:10,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:10,797 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:11,309 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:11,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:53:11,309 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:11,315 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:53:11,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:53:11,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:11,333 INFO L87 Difference]: Start difference. First operand 494 states. Second operand 2 states. [2019-10-03 02:53:11,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:11,384 INFO L93 Difference]: Finished difference Result 480 states and 632 transitions. [2019-10-03 02:53:11,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:53:11,386 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 148 [2019-10-03 02:53:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:11,412 INFO L225 Difference]: With dead ends: 480 [2019-10-03 02:53:11,413 INFO L226 Difference]: Without dead ends: 471 [2019-10-03 02:53:11,414 INFO L640 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 [2019-10-03 02:53:11,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2019-10-03 02:53:11,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2019-10-03 02:53:11,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2019-10-03 02:53:11,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 621 transitions. [2019-10-03 02:53:11,500 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 621 transitions. Word has length 148 [2019-10-03 02:53:11,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:11,502 INFO L475 AbstractCegarLoop]: Abstraction has 471 states and 621 transitions. [2019-10-03 02:53:11,502 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:53:11,502 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 621 transitions. [2019-10-03 02:53:11,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-03 02:53:11,507 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:11,507 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:11,507 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:11,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:11,508 INFO L82 PathProgramCache]: Analyzing trace with hash -810141649, now seen corresponding path program 1 times [2019-10-03 02:53:11,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:11,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:11,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:11,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:11,514 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:11,764 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:11,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:11,764 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:11,768 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:11,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:11,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:11,769 INFO L87 Difference]: Start difference. First operand 471 states and 621 transitions. Second operand 3 states. [2019-10-03 02:53:11,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:11,812 INFO L93 Difference]: Finished difference Result 474 states and 624 transitions. [2019-10-03 02:53:11,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:11,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-03 02:53:11,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:11,817 INFO L225 Difference]: With dead ends: 474 [2019-10-03 02:53:11,818 INFO L226 Difference]: Without dead ends: 474 [2019-10-03 02:53:11,818 INFO L640 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 [2019-10-03 02:53:11,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-03 02:53:11,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 473. [2019-10-03 02:53:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2019-10-03 02:53:11,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 623 transitions. [2019-10-03 02:53:11,851 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 623 transitions. Word has length 149 [2019-10-03 02:53:11,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:11,852 INFO L475 AbstractCegarLoop]: Abstraction has 473 states and 623 transitions. [2019-10-03 02:53:11,852 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:11,852 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 623 transitions. [2019-10-03 02:53:11,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-03 02:53:11,855 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:11,855 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-03 02:53:11,856 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:11,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:11,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1944980387, now seen corresponding path program 1 times [2019-10-03 02:53:11,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:11,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:11,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:11,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:11,861 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:12,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:12,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:12,072 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:12,073 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:12,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:12,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:12,076 INFO L87 Difference]: Start difference. First operand 473 states and 623 transitions. Second operand 3 states. [2019-10-03 02:53:12,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:12,128 INFO L93 Difference]: Finished difference Result 514 states and 693 transitions. [2019-10-03 02:53:12,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:12,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-03 02:53:12,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:12,137 INFO L225 Difference]: With dead ends: 514 [2019-10-03 02:53:12,137 INFO L226 Difference]: Without dead ends: 514 [2019-10-03 02:53:12,138 INFO L640 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 [2019-10-03 02:53:12,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2019-10-03 02:53:12,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 513. [2019-10-03 02:53:12,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 513 states. [2019-10-03 02:53:12,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 692 transitions. [2019-10-03 02:53:12,206 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 692 transitions. Word has length 155 [2019-10-03 02:53:12,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:12,208 INFO L475 AbstractCegarLoop]: Abstraction has 513 states and 692 transitions. [2019-10-03 02:53:12,209 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:12,209 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 692 transitions. [2019-10-03 02:53:12,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-03 02:53:12,218 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:12,219 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-03 02:53:12,219 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:12,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:12,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1177925529, now seen corresponding path program 1 times [2019-10-03 02:53:12,220 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:12,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:12,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:12,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:12,229 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:12,597 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:12,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:12,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:53:12,598 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:12,599 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:53:12,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:53:12,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:53:12,599 INFO L87 Difference]: Start difference. First operand 513 states and 692 transitions. Second operand 7 states. [2019-10-03 02:53:15,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:15,472 INFO L93 Difference]: Finished difference Result 757 states and 999 transitions. [2019-10-03 02:53:15,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:53:15,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2019-10-03 02:53:15,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:15,479 INFO L225 Difference]: With dead ends: 757 [2019-10-03 02:53:15,479 INFO L226 Difference]: Without dead ends: 755 [2019-10-03 02:53:15,481 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:53:15,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2019-10-03 02:53:15,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 746. [2019-10-03 02:53:15,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2019-10-03 02:53:15,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 987 transitions. [2019-10-03 02:53:15,511 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 987 transitions. Word has length 156 [2019-10-03 02:53:15,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:15,512 INFO L475 AbstractCegarLoop]: Abstraction has 746 states and 987 transitions. [2019-10-03 02:53:15,512 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:53:15,512 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 987 transitions. [2019-10-03 02:53:15,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-03 02:53:15,515 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:15,516 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-03 02:53:15,516 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:15,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:15,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1743072704, now seen corresponding path program 1 times [2019-10-03 02:53:15,516 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:15,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:15,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:15,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:15,521 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:15,867 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:15,868 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:15,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-03 02:53:15,868 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:15,869 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-03 02:53:15,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-03 02:53:15,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-03 02:53:15,871 INFO L87 Difference]: Start difference. First operand 746 states and 987 transitions. Second operand 16 states. [2019-10-03 02:53:16,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:16,219 INFO L93 Difference]: Finished difference Result 804 states and 1062 transitions. [2019-10-03 02:53:16,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-03 02:53:16,220 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 157 [2019-10-03 02:53:16,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:16,226 INFO L225 Difference]: With dead ends: 804 [2019-10-03 02:53:16,226 INFO L226 Difference]: Without dead ends: 778 [2019-10-03 02:53:16,227 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-03 02:53:16,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2019-10-03 02:53:16,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 774. [2019-10-03 02:53:16,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 774 states. [2019-10-03 02:53:16,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1024 transitions. [2019-10-03 02:53:16,254 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1024 transitions. Word has length 157 [2019-10-03 02:53:16,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:16,254 INFO L475 AbstractCegarLoop]: Abstraction has 774 states and 1024 transitions. [2019-10-03 02:53:16,254 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-03 02:53:16,255 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1024 transitions. [2019-10-03 02:53:16,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-03 02:53:16,258 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:16,258 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-03 02:53:16,258 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:16,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:16,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1940029047, now seen corresponding path program 1 times [2019-10-03 02:53:16,259 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:16,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:16,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:16,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:16,263 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:16,407 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:16,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:16,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:53:16,408 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:16,408 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:53:16,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:53:16,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:53:16,409 INFO L87 Difference]: Start difference. First operand 774 states and 1024 transitions. Second operand 8 states. [2019-10-03 02:53:17,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:17,174 INFO L93 Difference]: Finished difference Result 1298 states and 1695 transitions. [2019-10-03 02:53:17,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-03 02:53:17,175 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2019-10-03 02:53:17,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:17,184 INFO L225 Difference]: With dead ends: 1298 [2019-10-03 02:53:17,184 INFO L226 Difference]: Without dead ends: 1296 [2019-10-03 02:53:17,185 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:53:17,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2019-10-03 02:53:17,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1283. [2019-10-03 02:53:17,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2019-10-03 02:53:17,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1679 transitions. [2019-10-03 02:53:17,234 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1679 transitions. Word has length 166 [2019-10-03 02:53:17,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:17,235 INFO L475 AbstractCegarLoop]: Abstraction has 1283 states and 1679 transitions. [2019-10-03 02:53:17,236 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:53:17,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1679 transitions. [2019-10-03 02:53:17,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-03 02:53:17,240 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:17,240 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:17,240 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:17,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:17,241 INFO L82 PathProgramCache]: Analyzing trace with hash -511327191, now seen corresponding path program 1 times [2019-10-03 02:53:17,241 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:17,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:17,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:17,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:17,245 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:17,574 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:17,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:17,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-03 02:53:17,575 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:17,576 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-03 02:53:17,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-03 02:53:17,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2019-10-03 02:53:17,576 INFO L87 Difference]: Start difference. First operand 1283 states and 1679 transitions. Second operand 15 states. [2019-10-03 02:53:18,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:18,128 INFO L93 Difference]: Finished difference Result 1282 states and 1675 transitions. [2019-10-03 02:53:18,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:53:18,128 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 167 [2019-10-03 02:53:18,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:18,136 INFO L225 Difference]: With dead ends: 1282 [2019-10-03 02:53:18,136 INFO L226 Difference]: Without dead ends: 1282 [2019-10-03 02:53:18,137 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2019-10-03 02:53:18,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2019-10-03 02:53:18,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1281. [2019-10-03 02:53:18,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1281 states. [2019-10-03 02:53:18,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 1674 transitions. [2019-10-03 02:53:18,190 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 1674 transitions. Word has length 167 [2019-10-03 02:53:18,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:18,191 INFO L475 AbstractCegarLoop]: Abstraction has 1281 states and 1674 transitions. [2019-10-03 02:53:18,191 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-03 02:53:18,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 1674 transitions. [2019-10-03 02:53:18,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-03 02:53:18,197 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:18,197 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:18,197 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:18,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:18,198 INFO L82 PathProgramCache]: Analyzing trace with hash 211331651, now seen corresponding path program 2 times [2019-10-03 02:53:18,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:18,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:18,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:18,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:18,203 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:18,452 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:18,452 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:18,452 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:53:18,453 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-10-03 02:53:18,454 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-03 02:53:18,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:18,455 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-03 02:53:18,586 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-03 02:53:18,586 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-10-03 02:53:18,903 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-03 02:53:18,903 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-03 02:53:18,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-03 02:53:18,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-03 02:53:19,117 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-03 02:53:19,118 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-03 02:53:19,604 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-10-03 02:53:19,619 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:53:19,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-03 02:53:19,620 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:19,620 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:53:19,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:53:19,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-03 02:53:19,621 INFO L87 Difference]: Start difference. First operand 1281 states and 1674 transitions. Second operand 8 states. [2019-10-03 02:53:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:20,750 INFO L93 Difference]: Finished difference Result 2520 states and 3312 transitions. [2019-10-03 02:53:20,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-03 02:53:20,750 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 167 [2019-10-03 02:53:20,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:20,766 INFO L225 Difference]: With dead ends: 2520 [2019-10-03 02:53:20,766 INFO L226 Difference]: Without dead ends: 2518 [2019-10-03 02:53:20,768 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 323 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2019-10-03 02:53:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2019-10-03 02:53:20,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 2509. [2019-10-03 02:53:20,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2509 states. [2019-10-03 02:53:20,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3301 transitions. [2019-10-03 02:53:20,901 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3301 transitions. Word has length 167 [2019-10-03 02:53:20,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:20,902 INFO L475 AbstractCegarLoop]: Abstraction has 2509 states and 3301 transitions. [2019-10-03 02:53:20,902 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:53:20,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3301 transitions. [2019-10-03 02:53:20,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-03 02:53:20,908 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:20,908 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-03 02:53:20,909 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:20,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:20,909 INFO L82 PathProgramCache]: Analyzing trace with hash 114615313, now seen corresponding path program 1 times [2019-10-03 02:53:20,909 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:20,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:20,916 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-03 02:53:20,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:20,916 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:21,201 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:21,202 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:21,202 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:53:21,203 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2019-10-03 02:53:21,206 INFO L207 CegarAbsIntRunner]: [72], [75], [76], [79], [85], [86], [89], [98], [123], [139], [142], [156], [157], [159], [269], [271], [275], [278], [279], [314], [317], [326], [339], [341], [342], [345], [355], [609], [611], [612], [613], [651], [654], [668], [697], [700], [706], [707], [708], [709], [726], [728], [732], [735], [749], [753], [756], [774], [777], [815], [824], [828], [830], [832], [835], [842], [849], [852], [1062], [1064], [1067], [1069], [1072], [1132], [1204], [1208], [1219], [1222], [1261], [1263], [1376], [1379], [1381], [1384], [1393], [1399], [1402], [1411], [1465], [1468], [1477], [1600], [1602], [1604], [1606], [1607], [1637], [1647], [1648], [1649], [1650], [1651], [1652], [1655], [1656], [1657], [1658], [1659], [1661], [1662], [1663], [1664], [1677], [1678], [1717], [1718], [1733], [1739], [1740], [1741], [1742], [1743], [1744], [1745], [1746], [1747], [1748], [1749], [1750], [1751], [1752], [1753], [1755], [1756], [1757], [1758], [1797], [1799], [1800], [1801], [1802], [1803], [1805], [1806], [1807], [1809], [1810], [1811], [1812], [1813], [1814], [1815], [1827], [1828], [1829], [1830], [1831], [1832], [1833], [1834], [1835] [2019-10-03 02:53:21,258 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:53:21,258 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:53:21,378 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:53:21,379 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 196 root evaluator evaluations with a maximum evaluation depth of 0. Performed 196 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 364 variables. [2019-10-03 02:53:21,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:21,384 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:53:21,440 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:53:21,441 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:53:21,445 INFO L420 sIntCurrentIteration]: We unified 167 AI predicates to 167 [2019-10-03 02:53:21,445 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:53:21,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:53:21,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:53:21,446 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:21,447 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:53:21,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:53:21,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:21,447 INFO L87 Difference]: Start difference. First operand 2509 states and 3301 transitions. Second operand 2 states. [2019-10-03 02:53:21,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:21,448 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:53:21,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:53:21,448 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 168 [2019-10-03 02:53:21,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:21,449 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:53:21,449 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:53:21,449 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:21,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:53:21,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:53:21,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:53:21,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:53:21,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 168 [2019-10-03 02:53:21,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:21,450 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:53:21,450 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:53:21,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:53:21,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:53:21,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:53:21 BoogieIcfgContainer [2019-10-03 02:53:21,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:53:21,459 INFO L168 Benchmark]: Toolchain (without parser) took 14266.54 ms. Allocated memory was 133.2 MB in the beginning and 492.8 MB in the end (delta: 359.7 MB). Free memory was 86.4 MB in the beginning and 329.8 MB in the end (delta: -243.4 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:21,460 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-03 02:53:21,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 969.91 ms. Allocated memory was 133.2 MB in the beginning and 201.3 MB in the end (delta: 68.2 MB). Free memory was 86.0 MB in the beginning and 133.0 MB in the end (delta: -47.0 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:21,461 INFO L168 Benchmark]: Boogie Preprocessor took 168.44 ms. Allocated memory is still 201.3 MB. Free memory was 133.0 MB in the beginning and 124.3 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:21,462 INFO L168 Benchmark]: RCFGBuilder took 2207.87 ms. Allocated memory was 201.3 MB in the beginning and 266.9 MB in the end (delta: 65.5 MB). Free memory was 124.3 MB in the beginning and 167.6 MB in the end (delta: -43.4 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:21,463 INFO L168 Benchmark]: TraceAbstraction took 10914.82 ms. Allocated memory was 266.9 MB in the beginning and 492.8 MB in the end (delta: 226.0 MB). Free memory was 167.6 MB in the beginning and 329.8 MB in the end (delta: -162.2 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:21,467 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 969.91 ms. Allocated memory was 133.2 MB in the beginning and 201.3 MB in the end (delta: 68.2 MB). Free memory was 86.0 MB in the beginning and 133.0 MB in the end (delta: -47.0 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 168.44 ms. Allocated memory is still 201.3 MB. Free memory was 133.0 MB in the beginning and 124.3 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2207.87 ms. Allocated memory was 201.3 MB in the beginning and 266.9 MB in the end (delta: 65.5 MB). Free memory was 124.3 MB in the beginning and 167.6 MB in the end (delta: -43.4 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10914.82 ms. Allocated memory was 266.9 MB in the beginning and 492.8 MB in the end (delta: 226.0 MB). Free memory was 167.6 MB in the beginning and 329.8 MB in the end (delta: -162.2 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 111 procedures, 748 locations, 1 error locations. SAFE Result, 10.8s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 5.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5219 SDtfs, 2405 SDslu, 25414 SDs, 0 SdLazy, 3714 SolverSat, 452 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 611 GetRequests, 513 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2509occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.2395209580838324 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 38 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1600 NumberOfCodeBlocks, 1509 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1756 ConstructedInterpolants, 0 QuantifiedInterpolants, 412486 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1924 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 364/370 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...