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_spec0_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:37:45,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:37:45,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:37:45,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:37:45,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:37:45,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:37:45,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:37:45,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:37:45,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:37:45,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:37:45,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:37:45,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:37:45,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:37:45,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:37:45,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:37:45,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:37:45,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:37:45,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:37:45,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:37:45,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:37:45,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:37:45,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:37:45,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:37:45,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:37:45,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:37:45,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:37:45,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:37:45,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:37:45,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:37:45,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:37:45,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:37:45,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:37:45,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:37:45,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:37:45,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:37:45,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:37:45,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:37:45,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:37:45,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:37:45,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:37:45,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:37:45,236 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 14:37:45,268 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:37:45,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:37:45,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:37:45,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:37:45,272 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:37:45,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:37:45,273 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:37:45,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:37:45,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:37:45,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:37:45,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:37:45,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:37:45,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:37:45,274 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:37:45,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:37:45,276 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:37:45,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:37:45,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:37:45,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:37:45,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:37:45,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:37:45,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:37:45,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:37:45,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:37:45,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:37:45,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:37:45,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:37:45,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:37:45,279 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 14:37:45,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:37:45,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:37:45,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:37:45,578 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:37:45,578 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:37:45,579 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c [2019-10-07 14:37:45,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4ced657/c2ee87ebeb444a95b86d940d00d3d157/FLAG95c19ea4e [2019-10-07 14:37:46,230 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:37:46,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c [2019-10-07 14:37:46,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4ced657/c2ee87ebeb444a95b86d940d00d3d157/FLAG95c19ea4e [2019-10-07 14:37:46,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4ced657/c2ee87ebeb444a95b86d940d00d3d157 [2019-10-07 14:37:46,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:37:46,480 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:37:46,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:37:46,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:37:46,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:37:46,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:37:46" (1/1) ... [2019-10-07 14:37:46,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3264c97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:46, skipping insertion in model container [2019-10-07 14:37:46,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:37:46" (1/1) ... [2019-10-07 14:37:46,494 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:37:46,563 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:37:47,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:37:47,317 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:37:47,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:37:47,513 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:37:47,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:47 WrapperNode [2019-10-07 14:37:47,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:37:47,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:37:47,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:37:47,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:37:47,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:47" (1/1) ... [2019-10-07 14:37:47,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:47" (1/1) ... [2019-10-07 14:37:47,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:47" (1/1) ... [2019-10-07 14:37:47,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:47" (1/1) ... [2019-10-07 14:37:47,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:47" (1/1) ... [2019-10-07 14:37:47,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:47" (1/1) ... [2019-10-07 14:37:47,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:47" (1/1) ... [2019-10-07 14:37:47,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:37:47,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:37:47,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:37:47,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:37:47,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:47" (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 14:37:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:37:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:37:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:37:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:37:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:37:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:37:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:37:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:37:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:37:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:37:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:37:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:37:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:37:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:37:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:37:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:37:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:37:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:37:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:37:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:37:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:37:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:37:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:37:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:37:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:37:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:37:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:37:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:37:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:37:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:37:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:37:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:37:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:37:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:37:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:37:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:37:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:37:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:37:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:37:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:37:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:37:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:37:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:37:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:37:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:37:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:37:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:37:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:37:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:37:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:37:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:37:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:37:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:37:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:37:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:37:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:37:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:37:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:37:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:37:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:37:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:37:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:37:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:37:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:37:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:37:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:37:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:37:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:37:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:37:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:37:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:37:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:37:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:37:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:37:47,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:37:47,829 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:37:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:37:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:37:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:37:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:37:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:37:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:37:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:37:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:37:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:37:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:37:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:37:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:37:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:37:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:37:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:37:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-07 14:37:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:37:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:37:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:37:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:37:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:37:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:37:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:37:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:37:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:37:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:37:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:37:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:37:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:37:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:37:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:37:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:37:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:37:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:37:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:37:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:37:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:37:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:37:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:37:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:37:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:37:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:37:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:37:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:37:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:37:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:37:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:37:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:37:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:37:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:37:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:37:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:37:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:37:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:37:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:37:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:37:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:37:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:37:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:37:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:37:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:37:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:37:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:37:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:37:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:37:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:37:47,852 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:37:47,852 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:37:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:37:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:37:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:37:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:37:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:37:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:37:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:37:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:37:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:37:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:37:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:37:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:37:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:37:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:37:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:37:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:37:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:37:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:37:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:37:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:37:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:37:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:37:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:37:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:37:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:37:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:37:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:37:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:37:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:37:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:37:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:37:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:37:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:37:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:37:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:37:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:37:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:37:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:37:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:37:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:37:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:37:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:37:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:37:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:37:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:37:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:37:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:37:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:37:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:37:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:37:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:37:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:37:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:37:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:37:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:37:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:37:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:37:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:37:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:37:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:37:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:37:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:37:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:37:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:37:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:37:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:37:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:37:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:37:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:37:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:37:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:37:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:37:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:37:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:37:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-07 14:37:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:37:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:37:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:37:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:37:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:37:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:37:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:37:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:37:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:37:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:37:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:37:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:37:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:37:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:37:51,951 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:37:51,952 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:37:51,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:37:51 BoogieIcfgContainer [2019-10-07 14:37:51,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:37:51,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:37:51,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:37:51,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:37:51,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:37:46" (1/3) ... [2019-10-07 14:37:51,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48754048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:37:51, skipping insertion in model container [2019-10-07 14:37:51,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:47" (2/3) ... [2019-10-07 14:37:51,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48754048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:37:51, skipping insertion in model container [2019-10-07 14:37:51,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:37:51" (3/3) ... [2019-10-07 14:37:51,964 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product16.cil.c [2019-10-07 14:37:51,977 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:37:51,987 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:37:52,001 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:37:52,030 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:37:52,030 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:37:52,030 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:37:52,030 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:37:52,031 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:37:52,031 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:37:52,031 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:37:52,031 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:37:52,058 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2019-10-07 14:37:52,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-07 14:37:52,076 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:37:52,077 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:37:52,079 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:37:52,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:37:52,086 INFO L82 PathProgramCache]: Analyzing trace with hash 297708162, now seen corresponding path program 1 times [2019-10-07 14:37:52,095 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:37:52,096 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:37:52,096 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:37:52,096 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:37:52,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:37:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:37:52,712 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:37:52,713 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:37:52,714 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:37:52,714 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:37:52,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:37:52,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:37:52,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:37:52,736 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 2 states. [2019-10-07 14:37:52,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:37:52,838 INFO L93 Difference]: Finished difference Result 498 states and 588 transitions. [2019-10-07 14:37:52,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:37:52,840 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 149 [2019-10-07 14:37:52,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:37:52,870 INFO L225 Difference]: With dead ends: 498 [2019-10-07 14:37:52,870 INFO L226 Difference]: Without dead ends: 324 [2019-10-07 14:37:52,877 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 14:37:52,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-10-07 14:37:52,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2019-10-07 14:37:52,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2019-10-07 14:37:52,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 381 transitions. [2019-10-07 14:37:52,969 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 381 transitions. Word has length 149 [2019-10-07 14:37:52,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:37:52,972 INFO L462 AbstractCegarLoop]: Abstraction has 324 states and 381 transitions. [2019-10-07 14:37:52,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:37:52,972 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 381 transitions. [2019-10-07 14:37:52,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-07 14:37:52,981 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:37:52,981 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:37:52,982 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:37:52,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:37:52,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1351301717, now seen corresponding path program 1 times [2019-10-07 14:37:52,982 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:37:52,982 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:37:52,983 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:37:52,983 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:37:52,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:37:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:37:53,232 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:37:53,232 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:37:53,232 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:37:53,233 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:37:53,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:37:53,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:37:53,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:37:53,243 INFO L87 Difference]: Start difference. First operand 324 states and 381 transitions. Second operand 3 states. [2019-10-07 14:37:53,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:37:53,304 INFO L93 Difference]: Finished difference Result 483 states and 557 transitions. [2019-10-07 14:37:53,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:37:53,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2019-10-07 14:37:53,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:37:53,313 INFO L225 Difference]: With dead ends: 483 [2019-10-07 14:37:53,313 INFO L226 Difference]: Without dead ends: 326 [2019-10-07 14:37:53,316 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 14:37:53,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-10-07 14:37:53,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2019-10-07 14:37:53,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-07 14:37:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 383 transitions. [2019-10-07 14:37:53,361 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 383 transitions. Word has length 150 [2019-10-07 14:37:53,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:37:53,362 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 383 transitions. [2019-10-07 14:37:53,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:37:53,363 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 383 transitions. [2019-10-07 14:37:53,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 14:37:53,370 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:37:53,370 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:37:53,370 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:37:53,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:37:53,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1119639850, now seen corresponding path program 1 times [2019-10-07 14:37:53,371 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:37:53,371 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:37:53,371 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:37:53,371 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:37:53,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:37:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:37:53,669 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:37:53,669 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:37:53,669 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:37:53,670 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:37:53,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:37:53,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:37:53,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:37:53,673 INFO L87 Difference]: Start difference. First operand 326 states and 383 transitions. Second operand 3 states. [2019-10-07 14:37:53,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:37:53,718 INFO L93 Difference]: Finished difference Result 634 states and 773 transitions. [2019-10-07 14:37:53,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:37:53,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-07 14:37:53,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:37:53,725 INFO L225 Difference]: With dead ends: 634 [2019-10-07 14:37:53,725 INFO L226 Difference]: Without dead ends: 366 [2019-10-07 14:37:53,726 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 14:37:53,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-10-07 14:37:53,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2019-10-07 14:37:53,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-10-07 14:37:53,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 451 transitions. [2019-10-07 14:37:53,753 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 451 transitions. Word has length 155 [2019-10-07 14:37:53,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:37:53,754 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 451 transitions. [2019-10-07 14:37:53,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:37:53,754 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 451 transitions. [2019-10-07 14:37:53,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-07 14:37:53,762 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:37:53,762 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:37:53,762 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:37:53,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:37:53,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1254907282, now seen corresponding path program 1 times [2019-10-07 14:37:53,763 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:37:53,763 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:37:53,763 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:37:53,763 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:37:53,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:37:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:37:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:37:54,462 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:37:54,462 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:37:54,462 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-07 14:37:54,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 14:37:54,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 14:37:54,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2019-10-07 14:37:54,465 INFO L87 Difference]: Start difference. First operand 365 states and 451 transitions. Second operand 26 states. [2019-10-07 14:38:00,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:00,294 INFO L93 Difference]: Finished difference Result 720 states and 872 transitions. [2019-10-07 14:38:00,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-07 14:38:00,295 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 156 [2019-10-07 14:38:00,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:00,299 INFO L225 Difference]: With dead ends: 720 [2019-10-07 14:38:00,299 INFO L226 Difference]: Without dead ends: 558 [2019-10-07 14:38:00,301 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=159, Invalid=1647, Unknown=0, NotChecked=0, Total=1806 [2019-10-07 14:38:00,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2019-10-07 14:38:00,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 546. [2019-10-07 14:38:00,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2019-10-07 14:38:00,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 666 transitions. [2019-10-07 14:38:00,332 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 666 transitions. Word has length 156 [2019-10-07 14:38:00,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:00,333 INFO L462 AbstractCegarLoop]: Abstraction has 546 states and 666 transitions. [2019-10-07 14:38:00,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 14:38:00,333 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 666 transitions. [2019-10-07 14:38:00,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-07 14:38:00,336 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:00,336 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:38:00,336 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:00,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:00,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1443475956, now seen corresponding path program 1 times [2019-10-07 14:38:00,337 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:00,337 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:00,337 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:00,337 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:00,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:00,572 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:38:00,572 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:00,573 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:38:00,573 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:38:00,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:38:00,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:38:00,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:38:00,575 INFO L87 Difference]: Start difference. First operand 546 states and 666 transitions. Second operand 10 states. [2019-10-07 14:38:00,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:00,639 INFO L93 Difference]: Finished difference Result 555 states and 676 transitions. [2019-10-07 14:38:00,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:38:00,640 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2019-10-07 14:38:00,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:00,645 INFO L225 Difference]: With dead ends: 555 [2019-10-07 14:38:00,645 INFO L226 Difference]: Without dead ends: 550 [2019-10-07 14:38:00,646 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:38:00,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2019-10-07 14:38:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2019-10-07 14:38:00,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2019-10-07 14:38:00,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 669 transitions. [2019-10-07 14:38:00,676 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 669 transitions. Word has length 160 [2019-10-07 14:38:00,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:00,677 INFO L462 AbstractCegarLoop]: Abstraction has 550 states and 669 transitions. [2019-10-07 14:38:00,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:38:00,677 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 669 transitions. [2019-10-07 14:38:00,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-07 14:38:00,682 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:00,682 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:38:00,682 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:00,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:00,683 INFO L82 PathProgramCache]: Analyzing trace with hash 903951142, now seen corresponding path program 1 times [2019-10-07 14:38:00,683 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:00,684 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:00,684 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:00,684 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:00,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:01,438 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 14:38:01,438 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:01,438 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:38:01,439 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 14:38:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:01,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 2493 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:38:01,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:38:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:02,068 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:38:02,298 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:02,299 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:38:02,339 INFO L162 IcfgInterpreter]: Started Sifa with 147 locations of interest [2019-10-07 14:38:02,340 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:38:02,348 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:38:02,355 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:38:02,355 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:38:29,690 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 640 [2019-10-07 14:38:32,914 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 289 DAG size of output: 235 [2019-10-07 14:38:33,366 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 679 [2019-10-07 14:38:33,688 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 679 [2019-10-07 14:38:33,973 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 679 [2019-10-07 14:38:34,221 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:38:34,973 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 967 [2019-10-07 14:38:35,589 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 967 [2019-10-07 14:38:36,172 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 967 [2019-10-07 14:38:36,298 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:38:36,901 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 967 [2019-10-07 14:38:37,991 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 969 DAG size of output: 967 [2019-10-07 14:38:38,577 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 967 [2019-10-07 14:38:38,715 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:38:39,248 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 967 [2019-10-07 14:38:39,795 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 967 [2019-10-07 14:38:40,322 WARN L191 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 967 [2019-10-07 14:38:40,453 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:38:41,012 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 967 [2019-10-07 14:38:41,034 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 535 for LOIs [2019-10-07 14:38:41,364 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 610 [2019-10-07 14:38:41,477 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 610 [2019-10-07 14:38:41,594 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:38:42,039 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 898 [2019-10-07 14:38:42,040 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1005 for LOIs [2019-10-07 14:38:42,568 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:43,140 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:43,325 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:38:44,062 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:38:44,621 WARN L191 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:45,153 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:45,360 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:38:46,142 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:38:46,720 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:47,263 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:47,447 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:38:48,182 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:38:49,232 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1121 DAG size of output: 1005 [2019-10-07 14:38:49,758 WARN L191 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:50,295 WARN L191 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 549 [2019-10-07 14:38:51,030 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:38:51,577 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:52,124 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:52,371 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:38:53,116 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:38:53,654 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:54,180 WARN L191 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:54,359 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:38:55,115 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:38:55,640 WARN L191 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:56,187 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:56,370 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:38:57,108 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:38:57,644 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:58,168 WARN L191 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:38:58,362 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:38:59,098 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:38:59,623 WARN L191 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:39:00,155 WARN L191 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:39:00,332 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:01,066 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:01,594 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:39:02,132 WARN L191 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:39:02,318 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:03,074 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:03,603 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:39:04,127 WARN L191 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:39:04,307 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:05,041 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:05,572 WARN L191 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:39:06,101 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:39:06,278 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:07,011 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:07,542 WARN L191 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:39:08,065 WARN L191 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:39:08,243 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:08,986 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:09,820 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:10,564 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:10,751 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:11,489 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:12,847 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1121 DAG size of output: 1119 [2019-10-07 14:39:13,580 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:13,772 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:14,508 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:15,246 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:15,986 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:16,172 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:16,905 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:17,690 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:39:18,435 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:39:18,620 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:39:19,360 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:39:20,768 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1125 DAG size of output: 1123 [2019-10-07 14:39:21,532 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:39:21,734 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:39:22,487 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:39:23,767 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1125 DAG size of output: 1121 [2019-10-07 14:39:24,524 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:39:24,704 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:39:25,458 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:39:26,209 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:39:26,963 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:39:27,146 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:39:27,896 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:39:28,647 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:39:29,401 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:39:29,585 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:39:30,337 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:39:32,195 WARN L191 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 1121 DAG size of output: 1119 [2019-10-07 14:39:32,940 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:33,131 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:33,869 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:35,797 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1121 DAG size of output: 1119 [2019-10-07 14:39:36,541 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:36,727 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:37,471 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:38,213 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:38,961 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:39,139 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:39,890 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:41,283 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1121 DAG size of output: 1119 [2019-10-07 14:39:42,032 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:42,217 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:42,961 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:45,273 WARN L191 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 1121 DAG size of output: 1119 [2019-10-07 14:39:46,019 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:46,204 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:46,941 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:47,684 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:48,446 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:48,627 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:39:49,373 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 14:39:50,150 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:39:50,903 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:39:51,091 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:39:51,843 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:39:53,197 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1125 DAG size of output: 1121 [2019-10-07 14:39:53,940 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:39:54,132 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:39:54,885 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:39:56,209 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1125 DAG size of output: 1121 [2019-10-07 14:39:56,957 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:39:57,141 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:39:57,890 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:39:59,157 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1125 DAG size of output: 1121 [2019-10-07 14:39:59,910 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:40:00,097 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:40:00,853 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:40:02,137 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1127 DAG size of output: 1123 [2019-10-07 14:40:02,901 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:40:03,087 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:40:03,847 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:40:04,099 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:40:04,101 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 14:40:04,107 INFO L168 Benchmark]: Toolchain (without parser) took 137627.13 ms. Allocated memory was 138.9 MB in the beginning and 762.3 MB in the end (delta: 623.4 MB). Free memory was 100.4 MB in the beginning and 440.0 MB in the end (delta: -339.6 MB). Peak memory consumption was 283.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:04,108 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:40:04,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1033.21 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 100.2 MB in the beginning and 137.9 MB in the end (delta: -37.8 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:04,109 INFO L168 Benchmark]: Boogie Preprocessor took 205.40 ms. Allocated memory is still 204.5 MB. Free memory was 137.9 MB in the beginning and 129.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:04,110 INFO L168 Benchmark]: RCFGBuilder took 4233.73 ms. Allocated memory was 204.5 MB in the beginning and 293.1 MB in the end (delta: 88.6 MB). Free memory was 129.5 MB in the beginning and 95.9 MB in the end (delta: 33.6 MB). Peak memory consumption was 122.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:04,110 INFO L168 Benchmark]: TraceAbstraction took 132149.18 ms. Allocated memory was 293.1 MB in the beginning and 762.3 MB in the end (delta: 469.2 MB). Free memory was 95.9 MB in the beginning and 440.0 MB in the end (delta: -344.1 MB). Peak memory consumption was 125.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:04,113 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1033.21 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 100.2 MB in the beginning and 137.9 MB in the end (delta: -37.8 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 205.40 ms. Allocated memory is still 204.5 MB. Free memory was 137.9 MB in the beginning and 129.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4233.73 ms. Allocated memory was 204.5 MB in the beginning and 293.1 MB in the end (delta: 88.6 MB). Free memory was 129.5 MB in the beginning and 95.9 MB in the end (delta: 33.6 MB). Peak memory consumption was 122.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 132149.18 ms. Allocated memory was 293.1 MB in the beginning and 762.3 MB in the end (delta: 469.2 MB). Free memory was 95.9 MB in the beginning and 440.0 MB in the end (delta: -344.1 MB). Peak memory consumption was 125.1 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...