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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec9_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:11:46,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:11:46,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:11:46,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:11:46,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:11:46,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:11:46,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:11:46,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:11:46,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:11:46,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:11:46,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:11:46,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:11:46,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:11:46,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:11:46,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:11:46,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:11:46,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:11:46,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:11:46,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:11:46,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:11:46,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:11:46,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:11:46,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:11:46,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:11:46,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:11:46,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:11:46,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:11:46,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:11:46,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:11:46,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:11:46,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:11:46,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:11:46,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:11:46,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:11:46,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:11:46,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:11:46,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:11:46,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:11:46,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:11:46,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:11:46,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:11:46,169 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 [2019-10-07 15:11:46,183 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:11:46,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:11:46,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:11:46,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:11:46,185 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:11:46,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:11:46,185 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:11:46,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:11:46,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:11:46,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:11:46,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:11:46,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:11:46,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:11:46,187 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:11:46,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:11:46,187 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:11:46,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:11:46,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:11:46,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:11:46,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:11:46,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:11:46,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:11:46,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:11:46,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:11:46,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:11:46,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:11:46,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:11:46,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:11:46,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:11:46,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:11:46,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:11:46,483 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:11:46,484 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:11:46,484 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:11:46,485 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product28.cil.c [2019-10-07 15:11:46,545 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52f7eff04/14b313c3cbf84157a3a38c985a1308c3/FLAGc5c6d8ec8 [2019-10-07 15:11:47,183 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:11:47,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product28.cil.c [2019-10-07 15:11:47,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52f7eff04/14b313c3cbf84157a3a38c985a1308c3/FLAGc5c6d8ec8 [2019-10-07 15:11:47,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52f7eff04/14b313c3cbf84157a3a38c985a1308c3 [2019-10-07 15:11:47,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:11:47,407 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:11:47,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:11:47,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:11:47,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:11:47,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:11:47" (1/1) ... [2019-10-07 15:11:47,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18be93f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:11:47, skipping insertion in model container [2019-10-07 15:11:47,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:11:47" (1/1) ... [2019-10-07 15:11:47,423 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:11:47,496 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:11:48,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:11:48,240 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:11:48,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:11:48,487 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:11:48,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:11:48 WrapperNode [2019-10-07 15:11:48,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:11:48,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:11:48,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:11:48,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:11:48,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:11:48" (1/1) ... [2019-10-07 15:11:48,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:11:48" (1/1) ... [2019-10-07 15:11:48,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:11:48" (1/1) ... [2019-10-07 15:11:48,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:11:48" (1/1) ... [2019-10-07 15:11:48,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:11:48" (1/1) ... [2019-10-07 15:11:48,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:11:48" (1/1) ... [2019-10-07 15:11:48,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:11:48" (1/1) ... [2019-10-07 15:11:48,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:11:48,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:11:48,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:11:48,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:11:48,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:11:48" (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 [2019-10-07 15:11:48,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:11:48,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:11:48,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:11:48,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-07 15:11:48,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-07 15:11:48,738 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:11:48,738 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:11:48,738 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:11:48,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:11:48,739 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:11:48,739 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:11:48,739 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:11:48,740 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 15:11:48,740 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:11:48,740 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:11:48,740 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:11:48,741 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:11:48,741 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:11:48,741 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:11:48,741 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:11:48,741 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:11:48,742 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:11:48,742 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:11:48,742 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:11:48,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:11:48,743 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:11:48,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:11:48,743 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:11:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:11:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:11:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:11:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:11:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:11:48,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:11:48,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:11:48,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:11:48,745 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:11:48,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:11:48,746 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:11:48,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:11:48,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:11:48,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:11:48,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:11:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:11:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:11:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:11:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:11:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:11:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:11:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:11:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:11:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:11:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:11:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:11:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:11:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:11:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:11:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:11:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:11:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:11:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:11:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:11:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:11:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:11:48,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:11:48,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:11:48,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:11:48,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:11:48,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:11:48,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:11:48,752 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:11:48,752 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:11:48,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:11:48,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:11:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:11:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:11:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:11:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:11:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:11:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:11:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:11:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:11:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:11:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:11:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-07 15:11:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 15:11:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:11:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:11:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:11:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:11:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:11:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:11:48,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:11:48,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:11:48,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:11:48,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:11:48,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:11:48,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:11:48,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:11:48,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:11:48,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:11:48,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:11:48,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:11:48,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:11:48,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:11:48,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:11:48,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:11:48,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:11:48,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:11:48,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:11:48,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:11:48,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:11:48,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:11:48,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:11:48,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:11:48,759 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:11:48,759 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:11:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:11:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:11:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-07 15:11:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:11:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-07 15:11:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:11:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:11:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:11:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:11:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:11:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:11:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:11:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:11:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:11:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:11:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:11:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:11:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:11:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:11:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:11:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:11:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:11:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:11:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:11:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:11:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:11:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:11:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:11:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:11:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:11:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:11:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:11:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:11:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:11:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:11:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:11:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:11:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:11:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:11:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:11:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:11:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:11:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:11:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 15:11:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:11:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:11:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:11:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:11:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:11:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:11:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:11:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:11:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:11:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:11:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:11:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:11:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:11:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:11:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:11:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:11:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:11:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:11:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:11:48,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:11:48,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:11:48,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:11:48,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:11:48,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:11:48,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:11:48,770 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:11:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:11:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:11:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:11:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:11:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:11:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:11:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:11:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:11:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:11:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:11:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:11:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:11:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:11:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:11:48,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:11:48,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:11:48,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:11:48,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:11:48,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:11:48,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:11:48,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:11:48,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:11:48,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:11:48,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:11:48,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:11:48,774 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:11:48,774 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:11:48,774 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:11:48,775 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:11:48,775 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:11:48,775 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:11:48,775 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:11:48,775 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:11:48,775 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:11:48,775 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:11:48,776 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:11:48,776 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:11:48,776 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:11:48,776 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:11:48,776 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:11:48,776 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:11:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:11:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-07 15:11:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 15:11:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:11:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:11:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:11:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:11:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:11:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:11:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:11:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:11:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:11:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:11:53,593 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:11:53,593 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:11:53,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:11:53 BoogieIcfgContainer [2019-10-07 15:11:53,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:11:53,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:11:53,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:11:53,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:11:53,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:11:47" (1/3) ... [2019-10-07 15:11:53,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fde4881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:11:53, skipping insertion in model container [2019-10-07 15:11:53,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:11:48" (2/3) ... [2019-10-07 15:11:53,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fde4881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:11:53, skipping insertion in model container [2019-10-07 15:11:53,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:11:53" (3/3) ... [2019-10-07 15:11:53,604 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product28.cil.c [2019-10-07 15:11:53,615 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:11:53,625 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:11:53,687 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:11:53,718 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:11:53,718 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:11:53,718 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:11:53,719 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:11:53,719 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:11:53,719 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:11:53,719 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:11:53,719 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:11:53,750 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states. [2019-10-07 15:11:53,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 15:11:53,768 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:11:53,769 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 15:11:53,771 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:11:53,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:11:53,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1970581239, now seen corresponding path program 1 times [2019-10-07 15:11:53,794 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:11:53,795 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:11:53,796 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:11:53,796 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:11:53,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:11:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:11:54,569 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:11:54,570 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:11:54,570 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:11:54,571 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:11:54,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:11:54,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:11:54,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:11:54,592 INFO L87 Difference]: Start difference. First operand 376 states. Second operand 2 states. [2019-10-07 15:11:54,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:11:54,654 INFO L93 Difference]: Finished difference Result 525 states and 623 transitions. [2019-10-07 15:11:54,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:11:54,655 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-07 15:11:54,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:11:54,676 INFO L225 Difference]: With dead ends: 525 [2019-10-07 15:11:54,677 INFO L226 Difference]: Without dead ends: 334 [2019-10-07 15:11:54,682 INFO L606 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 [2019-10-07 15:11:54,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-10-07 15:11:54,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2019-10-07 15:11:54,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2019-10-07 15:11:54,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 396 transitions. [2019-10-07 15:11:54,776 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 396 transitions. Word has length 125 [2019-10-07 15:11:54,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:11:54,779 INFO L462 AbstractCegarLoop]: Abstraction has 334 states and 396 transitions. [2019-10-07 15:11:54,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:11:54,779 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 396 transitions. [2019-10-07 15:11:54,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-07 15:11:54,784 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:11:54,784 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:11:54,784 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:11:54,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:11:54,785 INFO L82 PathProgramCache]: Analyzing trace with hash -2025006871, now seen corresponding path program 1 times [2019-10-07 15:11:54,785 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:11:54,785 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:11:54,785 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:11:54,786 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:11:54,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:11:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:11:55,049 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:11:55,050 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:11:55,050 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:11:55,050 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:11:55,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:11:55,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:11:55,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:11:55,061 INFO L87 Difference]: Start difference. First operand 334 states and 396 transitions. Second operand 3 states. [2019-10-07 15:11:55,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:11:55,139 INFO L93 Difference]: Finished difference Result 510 states and 594 transitions. [2019-10-07 15:11:55,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:11:55,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-07 15:11:55,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:11:55,150 INFO L225 Difference]: With dead ends: 510 [2019-10-07 15:11:55,150 INFO L226 Difference]: Without dead ends: 336 [2019-10-07 15:11:55,155 INFO L606 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 [2019-10-07 15:11:55,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-10-07 15:11:55,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2019-10-07 15:11:55,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-10-07 15:11:55,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 398 transitions. [2019-10-07 15:11:55,217 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 398 transitions. Word has length 126 [2019-10-07 15:11:55,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:11:55,218 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 398 transitions. [2019-10-07 15:11:55,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:11:55,218 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 398 transitions. [2019-10-07 15:11:55,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-07 15:11:55,227 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:11:55,230 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 15:11:55,231 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:11:55,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:11:55,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1595466514, now seen corresponding path program 1 times [2019-10-07 15:11:55,231 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:11:55,231 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:11:55,232 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:11:55,232 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:11:55,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:11:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:11:55,494 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:11:55,495 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:11:55,495 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:11:55,495 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:11:55,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:11:55,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:11:55,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:11:55,497 INFO L87 Difference]: Start difference. First operand 336 states and 398 transitions. Second operand 3 states. [2019-10-07 15:11:55,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:11:55,527 INFO L93 Difference]: Finished difference Result 652 states and 800 transitions. [2019-10-07 15:11:55,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:11:55,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-07 15:11:55,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:11:55,531 INFO L225 Difference]: With dead ends: 652 [2019-10-07 15:11:55,532 INFO L226 Difference]: Without dead ends: 374 [2019-10-07 15:11:55,533 INFO L606 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 [2019-10-07 15:11:55,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2019-10-07 15:11:55,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 373. [2019-10-07 15:11:55,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-10-07 15:11:55,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 463 transitions. [2019-10-07 15:11:55,555 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 463 transitions. Word has length 131 [2019-10-07 15:11:55,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:11:55,556 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 463 transitions. [2019-10-07 15:11:55,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:11:55,556 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 463 transitions. [2019-10-07 15:11:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 15:11:55,559 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:11:55,559 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 15:11:55,559 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:11:55,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:11:55,560 INFO L82 PathProgramCache]: Analyzing trace with hash -528535397, now seen corresponding path program 1 times [2019-10-07 15:11:55,560 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:11:55,560 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:11:55,560 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:11:55,560 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:11:55,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:11:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:11:55,734 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:11:55,734 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:11:55,734 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:11:55,735 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:11:55,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:11:55,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:11:55,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:11:55,736 INFO L87 Difference]: Start difference. First operand 373 states and 463 transitions. Second operand 3 states. [2019-10-07 15:11:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:11:55,768 INFO L93 Difference]: Finished difference Result 593 states and 717 transitions. [2019-10-07 15:11:55,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:11:55,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-10-07 15:11:55,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:11:55,775 INFO L225 Difference]: With dead ends: 593 [2019-10-07 15:11:55,776 INFO L226 Difference]: Without dead ends: 422 [2019-10-07 15:11:55,778 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:11:55,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2019-10-07 15:11:55,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2019-10-07 15:11:55,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-07 15:11:55,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 512 transitions. [2019-10-07 15:11:55,814 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 512 transitions. Word has length 132 [2019-10-07 15:11:55,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:11:55,815 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 512 transitions. [2019-10-07 15:11:55,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:11:55,815 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 512 transitions. [2019-10-07 15:11:55,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-07 15:11:55,824 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:11:55,825 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:11:55,825 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:11:55,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:11:55,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1953863917, now seen corresponding path program 1 times [2019-10-07 15:11:55,826 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:11:55,826 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:11:55,826 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:11:55,826 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:11:55,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:11:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:11:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:11:56,733 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:11:56,733 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:11:56,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:11:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:11:57,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 3017 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:11:57,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:11:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 15:11:57,580 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:11:58,211 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:11:58,211 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:11:58,260 INFO L162 IcfgInterpreter]: Started Sifa with 186 locations of interest [2019-10-07 15:11:58,260 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:11:58,275 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:11:58,284 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:11:58,285 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:13:06,294 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 699 [2019-10-07 15:13:10,398 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 323 DAG size of output: 263 [2019-10-07 15:13:10,819 WARN L191 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 739 [2019-10-07 15:13:11,127 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 739 [2019-10-07 15:13:11,403 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 739 [2019-10-07 15:13:11,597 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:13:12,274 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:13:12,963 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:13:13,638 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:13:13,800 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:13:14,458 WARN L191 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:13:15,742 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1041 DAG size of output: 1039 [2019-10-07 15:13:16,431 WARN L191 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:13:16,583 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:13:17,228 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:13:17,887 WARN L191 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:13:18,566 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:13:18,700 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:13:19,345 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:13:19,369 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 568 for LOIs [2019-10-07 15:13:19,696 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 664 [2019-10-07 15:13:19,808 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 664 [2019-10-07 15:13:19,936 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:13:20,415 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 964 [2019-10-07 15:13:20,417 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1073 for LOIs [2019-10-07 15:13:21,057 WARN L191 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 15:13:21,688 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 15:13:21,896 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:13:22,786 WARN L191 SmtUtils]: Spent 888.00 ms on a formula simplification that was a NOOP. DAG size: 1195 [2019-10-07 15:13:23,474 WARN L191 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:24,106 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:24,336 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:25,189 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:25,861 WARN L191 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:26,493 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:26,719 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:27,577 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:28,652 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1203 DAG size of output: 1079 [2019-10-07 15:13:29,277 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:29,582 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:30,434 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:31,080 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:31,705 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:31,913 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:32,777 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:33,405 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:34,021 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:34,220 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:35,078 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:35,697 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:36,325 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:36,534 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:37,390 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:38,018 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:38,636 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:38,836 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:39,705 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:40,332 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:40,951 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:41,177 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:42,050 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:42,675 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:43,302 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:43,503 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:44,366 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:44,994 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:45,619 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:45,822 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:46,696 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:47,324 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:47,944 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:48,151 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:49,010 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:49,630 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:50,258 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:13:50,456 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:51,324 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:52,246 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:53,108 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:53,318 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:54,167 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:55,756 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1203 DAG size of output: 1201 [2019-10-07 15:13:56,610 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:56,936 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:13:57,789 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:58,643 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:59,495 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:13:59,693 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:14:00,544 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:01,495 WARN L191 SmtUtils]: Spent 912.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:02,370 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:02,572 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:14:03,431 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:04,925 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1207 DAG size of output: 1203 [2019-10-07 15:14:05,793 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1203 [2019-10-07 15:14:06,011 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:14:06,884 WARN L191 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:08,347 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1207 DAG size of output: 1203 [2019-10-07 15:14:09,210 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1203 [2019-10-07 15:14:09,407 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:14:10,267 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:12,163 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 1203 [2019-10-07 15:14:13,030 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1203 [2019-10-07 15:14:13,227 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:14:14,082 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:14,925 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:15,781 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:15,993 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:14:16,856 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1207 [2019-10-07 15:14:19,460 WARN L191 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 1203 DAG size of output: 1201 [2019-10-07 15:14:20,314 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:20,540 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:14:21,387 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:22,945 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1203 DAG size of output: 1201 [2019-10-07 15:14:23,791 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:24,017 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:14:24,870 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:25,718 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:26,568 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:26,769 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:14:27,629 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:30,152 WARN L191 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 1203 DAG size of output: 1201 [2019-10-07 15:14:31,005 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:31,213 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:14:32,067 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:33,652 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1203 DAG size of output: 1201 [2019-10-07 15:14:34,504 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:34,707 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:14:35,563 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:36,415 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:37,272 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:37,467 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:14:38,331 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:14:39,919 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1207 DAG size of output: 1205 [2019-10-07 15:14:40,782 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:40,992 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:14:41,854 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:43,325 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1207 DAG size of output: 1203 [2019-10-07 15:14:44,181 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1203 [2019-10-07 15:14:44,385 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:14:45,240 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:46,691 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1207 DAG size of output: 1203 [2019-10-07 15:14:47,540 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1203 [2019-10-07 15:14:47,735 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:14:48,590 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:50,033 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1210 DAG size of output: 1205 [2019-10-07 15:14:50,886 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:51,086 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:14:51,935 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1205 [2019-10-07 15:14:53,404 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1212 DAG size of output: 1207 [2019-10-07 15:14:54,291 WARN L191 SmtUtils]: Spent 882.00 ms on a formula simplification that was a NOOP. DAG size: 1207 [2019-10-07 15:14:54,494 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:14:55,347 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1207 [2019-10-07 15:14:55,615 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:14:55,616 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:14:55,623 INFO L168 Benchmark]: Toolchain (without parser) took 188216.34 ms. Allocated memory was 138.4 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 99.4 MB in the beginning and 27.1 MB in the end (delta: 72.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2019-10-07 15:14:55,624 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:14:55,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1080.11 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 99.2 MB in the beginning and 137.9 MB in the end (delta: -38.8 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:14:55,626 INFO L168 Benchmark]: Boogie Preprocessor took 164.05 ms. Allocated memory is still 203.4 MB. Free memory was 137.3 MB in the beginning and 128.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:14:55,626 INFO L168 Benchmark]: RCFGBuilder took 4942.20 ms. Allocated memory was 203.4 MB in the beginning and 295.2 MB in the end (delta: 91.8 MB). Free memory was 128.2 MB in the beginning and 82.0 MB in the end (delta: 46.2 MB). Peak memory consumption was 138.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:14:55,627 INFO L168 Benchmark]: TraceAbstraction took 182025.09 ms. Allocated memory was 295.2 MB in the beginning and 1.2 GB in the end (delta: 875.6 MB). Free memory was 82.0 MB in the beginning and 27.1 MB in the end (delta: 54.8 MB). Peak memory consumption was 930.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:14:55,630 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1080.11 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 99.2 MB in the beginning and 137.9 MB in the end (delta: -38.8 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 164.05 ms. Allocated memory is still 203.4 MB. Free memory was 137.3 MB in the beginning and 128.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4942.20 ms. Allocated memory was 203.4 MB in the beginning and 295.2 MB in the end (delta: 91.8 MB). Free memory was 128.2 MB in the beginning and 82.0 MB in the end (delta: 46.2 MB). Peak memory consumption was 138.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 182025.09 ms. Allocated memory was 295.2 MB in the beginning and 1.2 GB in the end (delta: 875.6 MB). Free memory was 82.0 MB in the beginning and 27.1 MB in the end (delta: 54.8 MB). Peak memory consumption was 930.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...