java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:15:39,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:15:39,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:15:39,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:15:39,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:15:39,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:15:39,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:15:39,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:15:39,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:15:39,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:15:39,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:15:39,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:15:39,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:15:39,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:15:39,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:15:39,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:15:39,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:15:39,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:15:39,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:15:39,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:15:39,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:15:39,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:15:39,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:15:39,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:15:39,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:15:39,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:15:39,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:15:39,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:15:39,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:15:39,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:15:39,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:15:39,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:15:39,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:15:39,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:15:39,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:15:39,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:15:39,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:15:39,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:15:39,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:15:39,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:15:39,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:15:39,129 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:15:39,147 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:15:39,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:15:39,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:15:39,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:15:39,151 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:15:39,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:15:39,151 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:15:39,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:15:39,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:15:39,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:15:39,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:15:39,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:15:39,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:15:39,153 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:15:39,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:15:39,153 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:15:39,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:15:39,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:15:39,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:15:39,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:15:39,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:15:39,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:39,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:15:39,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:15:39,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:15:39,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:15:39,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:15:39,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:15:39,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:15:39,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:15:39,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:15:39,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:15:39,472 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:15:39,472 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:15:39,473 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product32.cil.c [2019-10-15 01:15:39,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6dc5e959/a4875a0ea66547ca97f96938b32ddc86/FLAG74a6825e7 [2019-10-15 01:15:40,199 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:15:40,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product32.cil.c [2019-10-15 01:15:40,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6dc5e959/a4875a0ea66547ca97f96938b32ddc86/FLAG74a6825e7 [2019-10-15 01:15:40,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6dc5e959/a4875a0ea66547ca97f96938b32ddc86 [2019-10-15 01:15:40,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:15:40,431 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:15:40,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:40,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:15:40,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:15:40,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:40" (1/1) ... [2019-10-15 01:15:40,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a30decc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:40, skipping insertion in model container [2019-10-15 01:15:40,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:40" (1/1) ... [2019-10-15 01:15:40,449 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:15:40,520 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:15:41,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:41,321 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:15:41,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:41,645 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:15:41,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:41 WrapperNode [2019-10-15 01:15:41,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:41,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:15:41,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:15:41,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:15:41,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:41" (1/1) ... [2019-10-15 01:15:41,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:41" (1/1) ... [2019-10-15 01:15:41,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:41" (1/1) ... [2019-10-15 01:15:41,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:41" (1/1) ... [2019-10-15 01:15:41,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:41" (1/1) ... [2019-10-15 01:15:41,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:41" (1/1) ... [2019-10-15 01:15:41,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:41" (1/1) ... [2019-10-15 01:15:41,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:15:41,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:15:41,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:15:41,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:15:41,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:15:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:15:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:15:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:15:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:15:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:15:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:15:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:15:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:15:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:15:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:15:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:15:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:15:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:15:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:15:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:15:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:15:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:15:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:15:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:15:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:15:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:15:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:15:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:15:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:15:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:15:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:15:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:15:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:15:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:15:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:15:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:15:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:15:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:15:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:15:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:15:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:15:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:15:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:15:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:15:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:15:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:15:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:15:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:15:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:15:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:15:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:15:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:15:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:15:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:15:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:15:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:15:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:15:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:15:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:15:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:15:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:15:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:15:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:15:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:15:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:15:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:15:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:15:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:15:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:15:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:15:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:15:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:15:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:15:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:15:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-15 01:15:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:15:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:15:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:15:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:15:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:15:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:15:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:15:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:15:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:15:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:15:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:15:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:15:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:15:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:15:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:15:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:15:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:15:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:15:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:15:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:15:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:15:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:15:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:15:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:15:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:15:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:15:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:15:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:15:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:15:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:15:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:15:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:15:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:15:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:15:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:15:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:15:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:15:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:15:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:15:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:15:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:15:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:15:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:15:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:15:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:15:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:15:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:15:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:15:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:15:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:15:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:15:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:15:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:15:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:15:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:15:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:15:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:15:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:15:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:15:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:15:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:15:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:15:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:15:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:15:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:15:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:15:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:15:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:15:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:15:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:15:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:15:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:15:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:15:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:15:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:15:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:15:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:15:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:15:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:15:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:15:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:15:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:15:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:15:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:15:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:15:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:15:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:15:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:15:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:15:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:15:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:15:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:15:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:15:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:15:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:15:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:15:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-15 01:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:15:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:15:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:15:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:15:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:15:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:15:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:15:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:15:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:15:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:15:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:15:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:15:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:15:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:15:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:15:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:15:44,322 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:15:44,322 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:15:44,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:44 BoogieIcfgContainer [2019-10-15 01:15:44,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:15:44,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:15:44,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:15:44,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:15:44,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:15:40" (1/3) ... [2019-10-15 01:15:44,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cfe295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:44, skipping insertion in model container [2019-10-15 01:15:44,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:41" (2/3) ... [2019-10-15 01:15:44,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cfe295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:44, skipping insertion in model container [2019-10-15 01:15:44,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:44" (3/3) ... [2019-10-15 01:15:44,337 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product32.cil.c [2019-10-15 01:15:44,354 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:15:44,367 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:15:44,380 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:15:44,411 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:15:44,411 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:15:44,411 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:15:44,412 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:15:44,412 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:15:44,412 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:15:44,412 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:15:44,412 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:15:44,445 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states. [2019-10-15 01:15:44,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-15 01:15:44,475 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:44,477 INFO L380 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, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:44,479 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:44,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:44,486 INFO L82 PathProgramCache]: Analyzing trace with hash 460180424, now seen corresponding path program 1 times [2019-10-15 01:15:44,496 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:44,497 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987175799] [2019-10-15 01:15:44,497 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:44,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:44,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:45,206 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:45,207 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987175799] [2019-10-15 01:15:45,207 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:45,208 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:15:45,208 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569400334] [2019-10-15 01:15:45,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:15:45,216 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:45,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:15:45,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:45,235 INFO L87 Difference]: Start difference. First operand 637 states. Second operand 2 states. [2019-10-15 01:15:45,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:45,324 INFO L93 Difference]: Finished difference Result 904 states and 1227 transitions. [2019-10-15 01:15:45,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:15:45,326 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 173 [2019-10-15 01:15:45,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:45,353 INFO L225 Difference]: With dead ends: 904 [2019-10-15 01:15:45,354 INFO L226 Difference]: Without dead ends: 580 [2019-10-15 01:15:45,361 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:45,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2019-10-15 01:15:45,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2019-10-15 01:15:45,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-15 01:15:45,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 792 transitions. [2019-10-15 01:15:45,470 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 792 transitions. Word has length 173 [2019-10-15 01:15:45,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:45,474 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 792 transitions. [2019-10-15 01:15:45,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:15:45,474 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 792 transitions. [2019-10-15 01:15:45,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 01:15:45,488 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:45,488 INFO L380 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:45,488 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:45,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:45,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1260551552, now seen corresponding path program 1 times [2019-10-15 01:15:45,490 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:45,490 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332548166] [2019-10-15 01:15:45,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:45,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:45,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:45,823 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:45,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332548166] [2019-10-15 01:15:45,824 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:45,824 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:45,824 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958328970] [2019-10-15 01:15:45,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:45,828 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:45,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:45,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:45,829 INFO L87 Difference]: Start difference. First operand 580 states and 792 transitions. Second operand 3 states. [2019-10-15 01:15:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:45,923 INFO L93 Difference]: Finished difference Result 887 states and 1192 transitions. [2019-10-15 01:15:45,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:45,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-15 01:15:45,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:45,936 INFO L225 Difference]: With dead ends: 887 [2019-10-15 01:15:45,937 INFO L226 Difference]: Without dead ends: 583 [2019-10-15 01:15:45,940 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:45,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-15 01:15:45,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 582. [2019-10-15 01:15:45,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2019-10-15 01:15:45,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 794 transitions. [2019-10-15 01:15:45,997 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 794 transitions. Word has length 174 [2019-10-15 01:15:45,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:45,998 INFO L462 AbstractCegarLoop]: Abstraction has 582 states and 794 transitions. [2019-10-15 01:15:45,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:45,998 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 794 transitions. [2019-10-15 01:15:46,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-15 01:15:46,002 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:46,003 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:46,003 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:46,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:46,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1891942096, now seen corresponding path program 1 times [2019-10-15 01:15:46,004 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:46,004 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278801947] [2019-10-15 01:15:46,004 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,004 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:46,188 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:46,188 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278801947] [2019-10-15 01:15:46,189 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:46,189 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:46,189 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096315343] [2019-10-15 01:15:46,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:46,195 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:46,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:46,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:46,196 INFO L87 Difference]: Start difference. First operand 582 states and 794 transitions. Second operand 3 states. [2019-10-15 01:15:46,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:46,258 INFO L93 Difference]: Finished difference Result 1142 states and 1589 transitions. [2019-10-15 01:15:46,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:46,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-10-15 01:15:46,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:46,276 INFO L225 Difference]: With dead ends: 1142 [2019-10-15 01:15:46,276 INFO L226 Difference]: Without dead ends: 625 [2019-10-15 01:15:46,280 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:46,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2019-10-15 01:15:46,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 624. [2019-10-15 01:15:46,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2019-10-15 01:15:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 866 transitions. [2019-10-15 01:15:46,359 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 866 transitions. Word has length 184 [2019-10-15 01:15:46,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:46,360 INFO L462 AbstractCegarLoop]: Abstraction has 624 states and 866 transitions. [2019-10-15 01:15:46,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:46,360 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 866 transitions. [2019-10-15 01:15:46,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-15 01:15:46,372 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:46,372 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:46,373 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:46,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:46,374 INFO L82 PathProgramCache]: Analyzing trace with hash -754508202, now seen corresponding path program 1 times [2019-10-15 01:15:46,374 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:46,377 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550946004] [2019-10-15 01:15:46,378 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,378 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:46,827 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:46,828 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550946004] [2019-10-15 01:15:46,828 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:46,828 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:46,829 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758199600] [2019-10-15 01:15:46,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:46,830 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:46,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:46,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:46,830 INFO L87 Difference]: Start difference. First operand 624 states and 866 transitions. Second operand 3 states. [2019-10-15 01:15:46,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:46,897 INFO L93 Difference]: Finished difference Result 1265 states and 1800 transitions. [2019-10-15 01:15:46,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:46,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2019-10-15 01:15:46,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:46,906 INFO L225 Difference]: With dead ends: 1265 [2019-10-15 01:15:46,906 INFO L226 Difference]: Without dead ends: 706 [2019-10-15 01:15:46,910 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:46,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-10-15 01:15:46,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 705. [2019-10-15 01:15:46,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2019-10-15 01:15:46,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 1004 transitions. [2019-10-15 01:15:46,953 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 1004 transitions. Word has length 185 [2019-10-15 01:15:46,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:46,954 INFO L462 AbstractCegarLoop]: Abstraction has 705 states and 1004 transitions. [2019-10-15 01:15:46,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:46,954 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 1004 transitions. [2019-10-15 01:15:46,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-15 01:15:46,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:46,960 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:46,960 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:46,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:46,961 INFO L82 PathProgramCache]: Analyzing trace with hash 852653136, now seen corresponding path program 1 times [2019-10-15 01:15:46,961 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:46,962 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75840764] [2019-10-15 01:15:46,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:47,167 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:47,168 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75840764] [2019-10-15 01:15:47,168 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:47,169 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:47,169 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47227735] [2019-10-15 01:15:47,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:47,170 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:47,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:47,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:47,171 INFO L87 Difference]: Start difference. First operand 705 states and 1004 transitions. Second operand 3 states. [2019-10-15 01:15:47,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:47,216 INFO L93 Difference]: Finished difference Result 1502 states and 2204 transitions. [2019-10-15 01:15:47,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:47,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-15 01:15:47,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:47,224 INFO L225 Difference]: With dead ends: 1502 [2019-10-15 01:15:47,225 INFO L226 Difference]: Without dead ends: 862 [2019-10-15 01:15:47,227 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:47,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2019-10-15 01:15:47,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 861. [2019-10-15 01:15:47,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2019-10-15 01:15:47,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1268 transitions. [2019-10-15 01:15:47,274 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1268 transitions. Word has length 186 [2019-10-15 01:15:47,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:47,275 INFO L462 AbstractCegarLoop]: Abstraction has 861 states and 1268 transitions. [2019-10-15 01:15:47,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:47,275 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1268 transitions. [2019-10-15 01:15:47,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-15 01:15:47,280 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:47,281 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:47,281 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:47,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:47,281 INFO L82 PathProgramCache]: Analyzing trace with hash -2089090250, now seen corresponding path program 1 times [2019-10-15 01:15:47,282 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:47,282 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703464261] [2019-10-15 01:15:47,282 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:47,282 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:47,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:47,520 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:47,521 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703464261] [2019-10-15 01:15:47,522 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:47,522 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:47,522 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101095828] [2019-10-15 01:15:47,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:47,523 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:47,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:47,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:47,524 INFO L87 Difference]: Start difference. First operand 861 states and 1268 transitions. Second operand 3 states. [2019-10-15 01:15:47,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:47,586 INFO L93 Difference]: Finished difference Result 1958 states and 2976 transitions. [2019-10-15 01:15:47,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:47,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-10-15 01:15:47,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:47,595 INFO L225 Difference]: With dead ends: 1958 [2019-10-15 01:15:47,595 INFO L226 Difference]: Without dead ends: 1162 [2019-10-15 01:15:47,601 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:47,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2019-10-15 01:15:47,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1161. [2019-10-15 01:15:47,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1161 states. [2019-10-15 01:15:47,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1772 transitions. [2019-10-15 01:15:47,650 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1772 transitions. Word has length 187 [2019-10-15 01:15:47,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:47,652 INFO L462 AbstractCegarLoop]: Abstraction has 1161 states and 1772 transitions. [2019-10-15 01:15:47,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:47,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1772 transitions. [2019-10-15 01:15:47,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:15:47,659 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:47,659 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:47,660 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:47,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:47,660 INFO L82 PathProgramCache]: Analyzing trace with hash -579760363, now seen corresponding path program 1 times [2019-10-15 01:15:47,660 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:47,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54739537] [2019-10-15 01:15:47,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:47,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:47,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:47,902 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54739537] [2019-10-15 01:15:47,902 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:47,902 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:15:47,903 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471075066] [2019-10-15 01:15:47,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:47,903 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:47,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:47,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:15:47,904 INFO L87 Difference]: Start difference. First operand 1161 states and 1772 transitions. Second operand 7 states. [2019-10-15 01:15:51,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:51,605 INFO L93 Difference]: Finished difference Result 1761 states and 2565 transitions. [2019-10-15 01:15:51,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:15:51,606 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2019-10-15 01:15:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:51,618 INFO L225 Difference]: With dead ends: 1761 [2019-10-15 01:15:51,618 INFO L226 Difference]: Without dead ends: 1468 [2019-10-15 01:15:51,621 INFO L600 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 [2019-10-15 01:15:51,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2019-10-15 01:15:51,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1459. [2019-10-15 01:15:51,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1459 states. [2019-10-15 01:15:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 2165 transitions. [2019-10-15 01:15:51,708 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 2165 transitions. Word has length 190 [2019-10-15 01:15:51,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:51,710 INFO L462 AbstractCegarLoop]: Abstraction has 1459 states and 2165 transitions. [2019-10-15 01:15:51,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:51,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 2165 transitions. [2019-10-15 01:15:51,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:15:51,717 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:51,717 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:51,718 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:51,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:51,718 INFO L82 PathProgramCache]: Analyzing trace with hash -810631432, now seen corresponding path program 1 times [2019-10-15 01:15:51,719 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:51,719 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44657745] [2019-10-15 01:15:51,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:51,720 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:51,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:52,227 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44657745] [2019-10-15 01:15:52,227 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:52,227 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-15 01:15:52,227 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619768361] [2019-10-15 01:15:52,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-15 01:15:52,228 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:52,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-15 01:15:52,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:15:52,229 INFO L87 Difference]: Start difference. First operand 1459 states and 2165 transitions. Second operand 20 states. [2019-10-15 01:15:52,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:52,883 INFO L93 Difference]: Finished difference Result 2166 states and 3119 transitions. [2019-10-15 01:15:52,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-15 01:15:52,883 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 191 [2019-10-15 01:15:52,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:52,898 INFO L225 Difference]: With dead ends: 2166 [2019-10-15 01:15:52,898 INFO L226 Difference]: Without dead ends: 1569 [2019-10-15 01:15:52,903 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:52,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2019-10-15 01:15:53,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1567. [2019-10-15 01:15:53,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1567 states. [2019-10-15 01:15:53,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2316 transitions. [2019-10-15 01:15:53,016 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2316 transitions. Word has length 191 [2019-10-15 01:15:53,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:53,017 INFO L462 AbstractCegarLoop]: Abstraction has 1567 states and 2316 transitions. [2019-10-15 01:15:53,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-15 01:15:53,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2316 transitions. [2019-10-15 01:15:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:15:53,033 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:53,033 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:53,034 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:53,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:53,034 INFO L82 PathProgramCache]: Analyzing trace with hash 774123990, now seen corresponding path program 1 times [2019-10-15 01:15:53,035 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:53,035 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671642043] [2019-10-15 01:15:53,035 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:53,036 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:53,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:53,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671642043] [2019-10-15 01:15:53,374 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:53,375 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:15:53,375 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369773051] [2019-10-15 01:15:53,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:15:53,378 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:53,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:15:53,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:15:53,379 INFO L87 Difference]: Start difference. First operand 1567 states and 2316 transitions. Second operand 8 states. [2019-10-15 01:15:54,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:54,852 INFO L93 Difference]: Finished difference Result 2816 states and 3991 transitions. [2019-10-15 01:15:54,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:54,852 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2019-10-15 01:15:54,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:54,869 INFO L225 Difference]: With dead ends: 2816 [2019-10-15 01:15:54,870 INFO L226 Difference]: Without dead ends: 2311 [2019-10-15 01:15:54,873 INFO L600 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 [2019-10-15 01:15:54,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2019-10-15 01:15:55,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2292. [2019-10-15 01:15:55,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2292 states. [2019-10-15 01:15:55,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3294 transitions. [2019-10-15 01:15:55,024 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3294 transitions. Word has length 200 [2019-10-15 01:15:55,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:55,024 INFO L462 AbstractCegarLoop]: Abstraction has 2292 states and 3294 transitions. [2019-10-15 01:15:55,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:15:55,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3294 transitions. [2019-10-15 01:15:55,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:15:55,032 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:55,032 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:55,033 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:55,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:55,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1629602409, now seen corresponding path program 1 times [2019-10-15 01:15:55,033 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:55,034 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476474005] [2019-10-15 01:15:55,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:55,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:55,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:55,391 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:55,392 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476474005] [2019-10-15 01:15:55,393 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:55,393 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:15:55,394 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449651772] [2019-10-15 01:15:55,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:15:55,395 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:55,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:15:55,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:15:55,396 INFO L87 Difference]: Start difference. First operand 2292 states and 3294 transitions. Second operand 19 states. [2019-10-15 01:15:56,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:56,437 INFO L93 Difference]: Finished difference Result 2981 states and 4218 transitions. [2019-10-15 01:15:56,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-15 01:15:56,438 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 201 [2019-10-15 01:15:56,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:56,454 INFO L225 Difference]: With dead ends: 2981 [2019-10-15 01:15:56,454 INFO L226 Difference]: Without dead ends: 2291 [2019-10-15 01:15:56,461 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:15:56,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2019-10-15 01:15:56,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2290. [2019-10-15 01:15:56,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2290 states. [2019-10-15 01:15:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 3289 transitions. [2019-10-15 01:15:56,595 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 3289 transitions. Word has length 201 [2019-10-15 01:15:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:56,596 INFO L462 AbstractCegarLoop]: Abstraction has 2290 states and 3289 transitions. [2019-10-15 01:15:56,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:15:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 3289 transitions. [2019-10-15 01:15:56,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:15:56,609 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:56,610 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:56,610 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:56,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:56,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1161770309, now seen corresponding path program 2 times [2019-10-15 01:15:56,611 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:56,611 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877643239] [2019-10-15 01:15:56,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:56,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:56,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:56,986 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:56,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877643239] [2019-10-15 01:15:56,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055893545] [2019-10-15 01:15:56,987 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:57,590 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:15:57,591 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:15:57,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 01:15:57,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:15:57,866 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:15:58,428 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:58,428 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-15 01:15:58,428 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659875082] [2019-10-15 01:15:58,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:15:58,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:58,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:15:58,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:15:58,432 INFO L87 Difference]: Start difference. First operand 2290 states and 3289 transitions. Second operand 14 states. [2019-10-15 01:16:01,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:01,157 INFO L93 Difference]: Finished difference Result 6842 states and 9934 transitions. [2019-10-15 01:16:01,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:16:01,158 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 201 [2019-10-15 01:16:01,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:01,211 INFO L225 Difference]: With dead ends: 6842 [2019-10-15 01:16:01,212 INFO L226 Difference]: Without dead ends: 6839 [2019-10-15 01:16:01,219 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 396 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 01:16:01,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2019-10-15 01:16:01,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 5374. [2019-10-15 01:16:01,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5374 states. [2019-10-15 01:16:01,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5374 states to 5374 states and 7983 transitions. [2019-10-15 01:16:01,646 INFO L78 Accepts]: Start accepts. Automaton has 5374 states and 7983 transitions. Word has length 201 [2019-10-15 01:16:01,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:01,647 INFO L462 AbstractCegarLoop]: Abstraction has 5374 states and 7983 transitions. [2019-10-15 01:16:01,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:16:01,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5374 states and 7983 transitions. [2019-10-15 01:16:01,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:16:01,674 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:01,674 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:01,884 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:01,884 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:01,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:01,885 INFO L82 PathProgramCache]: Analyzing trace with hash 155143872, now seen corresponding path program 1 times [2019-10-15 01:16:01,885 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:01,885 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715286799] [2019-10-15 01:16:01,886 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:01,886 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:01,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:02,114 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-15 01:16:02,115 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715286799] [2019-10-15 01:16:02,115 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462131600] [2019-10-15 01:16:02,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:02,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 3008 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:16:02,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:03,164 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:16:03,165 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:03,532 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:16:03,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:03,751 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:03,862 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 01:16:03,862 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:16:03,862 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 9] total 24 [2019-10-15 01:16:03,863 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134719147] [2019-10-15 01:16:03,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:16:03,864 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:03,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:16:03,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2019-10-15 01:16:03,865 INFO L87 Difference]: Start difference. First operand 5374 states and 7983 transitions. Second operand 9 states. [2019-10-15 01:16:05,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:05,668 INFO L93 Difference]: Finished difference Result 10722 states and 15940 transitions. [2019-10-15 01:16:05,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:16:05,669 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 203 [2019-10-15 01:16:05,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:05,705 INFO L225 Difference]: With dead ends: 10722 [2019-10-15 01:16:05,705 INFO L226 Difference]: Without dead ends: 5392 [2019-10-15 01:16:05,727 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 390 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2019-10-15 01:16:05,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5392 states. [2019-10-15 01:16:05,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5392 to 5392. [2019-10-15 01:16:05,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5392 states. [2019-10-15 01:16:05,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 8004 transitions. [2019-10-15 01:16:05,968 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 8004 transitions. Word has length 203 [2019-10-15 01:16:05,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:05,968 INFO L462 AbstractCegarLoop]: Abstraction has 5392 states and 8004 transitions. [2019-10-15 01:16:05,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:16:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 8004 transitions. [2019-10-15 01:16:05,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:16:05,989 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:05,989 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:06,190 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:06,191 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:06,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:06,192 INFO L82 PathProgramCache]: Analyzing trace with hash -270148225, now seen corresponding path program 1 times [2019-10-15 01:16:06,192 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:06,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607601319] [2019-10-15 01:16:06,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:06,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:06,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:06,495 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-15 01:16:06,495 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607601319] [2019-10-15 01:16:06,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488793884] [2019-10-15 01:16:06,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:07,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:16:07,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:07,534 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:16:07,535 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:07,771 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:07,825 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:07,875 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:16:07,876 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:16:07,876 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 7] total 20 [2019-10-15 01:16:07,876 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167855006] [2019-10-15 01:16:07,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:16:07,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:07,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:16:07,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:16:07,879 INFO L87 Difference]: Start difference. First operand 5392 states and 8004 transitions. Second operand 7 states. [2019-10-15 01:16:09,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:09,340 INFO L93 Difference]: Finished difference Result 10692 states and 15905 transitions. [2019-10-15 01:16:09,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:09,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2019-10-15 01:16:09,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:09,393 INFO L225 Difference]: With dead ends: 10692 [2019-10-15 01:16:09,394 INFO L226 Difference]: Without dead ends: 5392 [2019-10-15 01:16:09,414 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 397 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:16:09,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5392 states. [2019-10-15 01:16:09,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5392 to 5392. [2019-10-15 01:16:09,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5392 states. [2019-10-15 01:16:09,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 7982 transitions. [2019-10-15 01:16:09,658 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 7982 transitions. Word has length 204 [2019-10-15 01:16:09,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:09,658 INFO L462 AbstractCegarLoop]: Abstraction has 5392 states and 7982 transitions. [2019-10-15 01:16:09,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:16:09,659 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 7982 transitions. [2019-10-15 01:16:09,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:16:09,679 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:09,679 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:09,887 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:09,887 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:09,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:09,888 INFO L82 PathProgramCache]: Analyzing trace with hash 908813455, now seen corresponding path program 1 times [2019-10-15 01:16:09,888 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:09,888 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419689289] [2019-10-15 01:16:09,888 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:09,888 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:09,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:16:10,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419689289] [2019-10-15 01:16:10,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326142726] [2019-10-15 01:16:10,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true