/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 22:28:11,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 22:28:11,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 22:28:11,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 22:28:11,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 22:28:11,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 22:28:11,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 22:28:11,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 22:28:11,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 22:28:11,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 22:28:11,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 22:28:11,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 22:28:11,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 22:28:11,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 22:28:11,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 22:28:11,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 22:28:11,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 22:28:11,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 22:28:11,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 22:28:11,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 22:28:11,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 22:28:11,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 22:28:11,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 22:28:11,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 22:28:11,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 22:28:11,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 22:28:11,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 22:28:11,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 22:28:11,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 22:28:11,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 22:28:11,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 22:28:11,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 22:28:11,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 22:28:11,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 22:28:11,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 22:28:11,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 22:28:11,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 22:28:11,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 22:28:11,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 22:28:11,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 22:28:11,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 22:28:11,936 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 22:28:11,959 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 22:28:11,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 22:28:11,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 22:28:11,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 22:28:11,962 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 22:28:11,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 22:28:11,962 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 22:28:11,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 22:28:11,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 22:28:11,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 22:28:11,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 22:28:11,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 22:28:11,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 22:28:11,964 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 22:28:11,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 22:28:11,964 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 22:28:11,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 22:28:11,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 22:28:11,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 22:28:11,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 22:28:11,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 22:28:11,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 22:28:11,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 22:28:11,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 22:28:11,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 22:28:11,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 22:28:11,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 22:28:11,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 22:28:11,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 22:28:11,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; [2020-08-18 22:28:12,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 22:28:12,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 22:28:12,317 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 22:28:12,319 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 22:28:12,320 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 22:28:12,322 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 22:28:12,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef9f711ec/fd3e25b744ed4c578820078a0e4d4046/FLAG38df115dc [2020-08-18 22:28:13,014 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 22:28:13,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 22:28:13,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef9f711ec/fd3e25b744ed4c578820078a0e4d4046/FLAG38df115dc [2020-08-18 22:28:13,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef9f711ec/fd3e25b744ed4c578820078a0e4d4046 [2020-08-18 22:28:13,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 22:28:13,229 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 22:28:13,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 22:28:13,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 22:28:13,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 22:28:13,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:28:13" (1/1) ... [2020-08-18 22:28:13,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29040ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:28:13, skipping insertion in model container [2020-08-18 22:28:13,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:28:13" (1/1) ... [2020-08-18 22:28:13,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 22:28:13,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 22:28:14,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:28:14,138 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 22:28:14,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:28:14,355 INFO L208 MainTranslator]: Completed translation [2020-08-18 22:28:14,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:28:14 WrapperNode [2020-08-18 22:28:14,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 22:28:14,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 22:28:14,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 22:28:14,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 22:28:14,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:28:14" (1/1) ... [2020-08-18 22:28:14,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:28:14" (1/1) ... [2020-08-18 22:28:14,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:28:14" (1/1) ... [2020-08-18 22:28:14,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:28:14" (1/1) ... [2020-08-18 22:28:14,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:28:14" (1/1) ... [2020-08-18 22:28:14,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:28:14" (1/1) ... [2020-08-18 22:28:14,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:28:14" (1/1) ... [2020-08-18 22:28:14,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 22:28:14,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 22:28:14,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 22:28:14,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 22:28:14,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:28:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 22:28:14,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 22:28:14,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 22:28:14,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 22:28:14,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-18 22:28:14,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-18 22:28:14,622 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-18 22:28:14,623 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-18 22:28:14,623 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-18 22:28:14,624 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 22:28:14,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 22:28:14,625 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-18 22:28:14,626 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 22:28:14,626 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 22:28:14,626 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 22:28:14,627 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 22:28:14,628 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 22:28:14,628 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-18 22:28:14,629 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-18 22:28:14,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-18 22:28:14,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-18 22:28:14,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-18 22:28:14,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-18 22:28:14,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-18 22:28:14,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-18 22:28:14,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-18 22:28:14,632 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-18 22:28:14,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-18 22:28:14,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-18 22:28:14,633 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-18 22:28:14,633 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-18 22:28:14,633 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-18 22:28:14,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-18 22:28:14,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-18 22:28:14,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-18 22:28:14,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-18 22:28:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-18 22:28:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-18 22:28:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-18 22:28:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-18 22:28:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-18 22:28:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-18 22:28:14,637 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-18 22:28:14,637 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-18 22:28:14,637 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-18 22:28:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-18 22:28:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-18 22:28:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-18 22:28:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-18 22:28:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-18 22:28:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 22:28:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 22:28:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-18 22:28:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 22:28:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 22:28:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 22:28:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 22:28:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 22:28:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 22:28:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-18 22:28:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-18 22:28:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-18 22:28:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-18 22:28:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-18 22:28:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-18 22:28:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-18 22:28:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-18 22:28:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-18 22:28:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-18 22:28:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-18 22:28:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-18 22:28:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-18 22:28:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-18 22:28:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-18 22:28:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-18 22:28:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-18 22:28:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-18 22:28:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-18 22:28:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-18 22:28:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-18 22:28:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-18 22:28:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-18 22:28:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-18 22:28:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-18 22:28:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-18 22:28:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-18 22:28:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-18 22:28:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-18 22:28:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-18 22:28:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-18 22:28:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-18 22:28:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-18 22:28:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 22:28:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 22:28:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 22:28:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-18 22:28:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-18 22:28:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-18 22:28:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 22:28:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 22:28:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 22:28:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-18 22:28:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-18 22:28:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-18 22:28:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-18 22:28:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-18 22:28:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-18 22:28:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-18 22:28:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-18 22:28:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-18 22:28:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-18 22:28:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 22:28:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 22:28:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 22:28:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-18 22:28:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 22:28:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 22:28:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-18 22:28:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-18 22:28:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-18 22:28:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-18 22:28:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-18 22:28:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-18 22:28:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-18 22:28:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-18 22:28:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-18 22:28:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-18 22:28:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-18 22:28:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-18 22:28:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-18 22:28:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-18 22:28:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-18 22:28:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-18 22:28:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-18 22:28:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-18 22:28:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-18 22:28:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-18 22:28:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-18 22:28:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-18 22:28:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-18 22:28:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-18 22:28:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-18 22:28:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-18 22:28:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-18 22:28:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-18 22:28:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-18 22:28:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-18 22:28:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-18 22:28:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-18 22:28:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 22:28:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 22:28:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-18 22:28:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-18 22:28:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 22:28:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 22:28:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 22:28:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 22:28:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 22:28:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 22:28:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 22:28:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 22:28:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 22:28:14,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 22:28:14,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 22:28:14,692 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 22:28:14,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 22:28:14,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 22:28:14,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 22:28:14,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 22:28:14,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-18 22:28:14,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-18 22:28:14,694 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-18 22:28:14,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-18 22:28:14,694 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-18 22:28:14,695 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-18 22:28:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-18 22:28:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-18 22:28:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-18 22:28:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-18 22:28:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-18 22:28:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-18 22:28:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-18 22:28:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-18 22:28:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-18 22:28:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-18 22:28:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-18 22:28:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-18 22:28:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-18 22:28:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-18 22:28:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-18 22:28:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-18 22:28:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-18 22:28:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-18 22:28:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-18 22:28:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-18 22:28:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 22:28:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 22:28:14,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 22:28:16,779 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 22:28:16,780 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 22:28:16,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:28:16 BoogieIcfgContainer [2020-08-18 22:28:16,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 22:28:16,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 22:28:16,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 22:28:16,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 22:28:16,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:28:13" (1/3) ... [2020-08-18 22:28:16,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76bbf781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:28:16, skipping insertion in model container [2020-08-18 22:28:16,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:28:14" (2/3) ... [2020-08-18 22:28:16,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76bbf781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:28:16, skipping insertion in model container [2020-08-18 22:28:16,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:28:16" (3/3) ... [2020-08-18 22:28:16,795 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-18 22:28:16,808 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 22:28:16,817 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 22:28:16,833 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 22:28:16,861 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 22:28:16,861 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 22:28:16,861 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 22:28:16,861 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 22:28:16,861 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 22:28:16,861 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 22:28:16,862 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 22:28:16,862 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 22:28:16,888 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-18 22:28:16,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-18 22:28:16,902 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:28:16,903 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:28:16,904 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:28:16,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:28:16,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-18 22:28:16,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:28:16,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030571693] [2020-08-18 22:28:16,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:28:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:18,833 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 22:28:18,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:28:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:18,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:28:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:18,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 22:28:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:18,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:28:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:18,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 22:28:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 22:28:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 22:28:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-18 22:28:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:28:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-18 22:28:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-18 22:28:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-18 22:28:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-18 22:28:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-18 22:28:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-18 22:28:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:19,352 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 22:28:19,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030571693] [2020-08-18 22:28:19,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:28:19,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-18 22:28:19,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819195702] [2020-08-18 22:28:19,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 22:28:19,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:28:19,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 22:28:19,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 22:28:19,381 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-18 22:28:21,406 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 22:28:22,921 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 22:28:24,162 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 22:28:25,366 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 22:28:31,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:28:31,337 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-18 22:28:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-18 22:28:31,339 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-18 22:28:31,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:28:31,357 INFO L225 Difference]: With dead ends: 573 [2020-08-18 22:28:31,357 INFO L226 Difference]: Without dead ends: 340 [2020-08-18 22:28:31,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-18 22:28:31,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-18 22:28:31,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-18 22:28:31,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-18 22:28:31,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-18 22:28:31,515 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-18 22:28:31,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:28:31,515 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-18 22:28:31,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 22:28:31,516 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-18 22:28:31,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-18 22:28:31,520 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:28:31,520 INFO L422 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] [2020-08-18 22:28:31,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 22:28:31,521 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:28:31,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:28:31,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-18 22:28:31,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:28:31,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691248923] [2020-08-18 22:28:31,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:28:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:32,777 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 22:28:32,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:28:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:32,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:28:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:32,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 22:28:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:32,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:28:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:32,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 22:28:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:32,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:32,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:32,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 22:28:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:32,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:32,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 22:28:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:32,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:33,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 22:28:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:33,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:33,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:28:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:33,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-18 22:28:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:33,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-18 22:28:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:33,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 22:28:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:33,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 22:28:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:33,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:33,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-18 22:28:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:33,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-18 22:28:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:33,156 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 22:28:33,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691248923] [2020-08-18 22:28:33,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:28:33,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 22:28:33,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921263377] [2020-08-18 22:28:33,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 22:28:33,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:28:33,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 22:28:33,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 22:28:33,162 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-18 22:28:35,145 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 22:28:36,804 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 22:28:37,992 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 22:28:39,208 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 22:28:43,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:28:43,782 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-18 22:28:43,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 22:28:43,783 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-18 22:28:43,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:28:43,788 INFO L225 Difference]: With dead ends: 509 [2020-08-18 22:28:43,788 INFO L226 Difference]: Without dead ends: 346 [2020-08-18 22:28:43,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 22:28:43,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-18 22:28:43,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-18 22:28:43,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 22:28:43,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-18 22:28:43,891 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-18 22:28:43,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:28:43,892 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-18 22:28:43,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 22:28:43,892 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-18 22:28:43,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-18 22:28:43,895 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:28:43,895 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:28:43,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 22:28:43,895 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:28:43,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:28:43,896 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-18 22:28:43,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:28:43,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920398222] [2020-08-18 22:28:43,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:28:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,123 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 22:28:45,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:28:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:28:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 22:28:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:28:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 22:28:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 22:28:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 22:28:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 22:28:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:28:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-18 22:28:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 22:28:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 22:28:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-18 22:28:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 22:28:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 22:28:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:45,446 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 22:28:45,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920398222] [2020-08-18 22:28:45,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:28:45,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 22:28:45,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290252354] [2020-08-18 22:28:45,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 22:28:45,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:28:45,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 22:28:45,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 22:28:45,450 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-18 22:28:47,301 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 22:28:48,847 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 22:28:50,033 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 22:28:51,188 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 22:28:55,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:28:55,430 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-18 22:28:55,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 22:28:55,432 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-18 22:28:55,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:28:55,439 INFO L225 Difference]: With dead ends: 509 [2020-08-18 22:28:55,439 INFO L226 Difference]: Without dead ends: 348 [2020-08-18 22:28:55,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 22:28:55,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-18 22:28:55,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-18 22:28:55,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 22:28:55,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-18 22:28:55,562 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-18 22:28:55,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:28:55,562 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-18 22:28:55,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 22:28:55,562 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-18 22:28:55,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-18 22:28:55,564 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:28:55,565 INFO L422 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] [2020-08-18 22:28:55,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 22:28:55,565 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:28:55,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:28:55,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-18 22:28:55,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:28:55,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1129345574] [2020-08-18 22:28:55,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:28:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:56,945 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 22:28:56,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:28:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:56,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:28:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:56,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 22:28:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:56,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:28:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 22:28:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 22:28:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 22:28:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-18 22:28:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:28:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:28:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 22:28:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 22:28:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 22:28:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:28:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-18 22:28:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-18 22:28:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:28:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 22:28:57,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1129345574] [2020-08-18 22:28:57,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:28:57,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 22:28:57,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867632783] [2020-08-18 22:28:57,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 22:28:57,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:28:57,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 22:28:57,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-18 22:28:57,188 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-18 22:28:59,724 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 22:29:03,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:29:03,619 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-18 22:29:03,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 22:29:03,621 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-18 22:29:03,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:29:03,624 INFO L225 Difference]: With dead ends: 463 [2020-08-18 22:29:03,624 INFO L226 Difference]: Without dead ends: 347 [2020-08-18 22:29:03,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-18 22:29:03,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-18 22:29:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-18 22:29:03,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-18 22:29:03,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-18 22:29:03,712 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-18 22:29:03,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:29:03,712 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-18 22:29:03,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 22:29:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-18 22:29:03,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-18 22:29:03,714 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:29:03,715 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:29:03,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 22:29:03,715 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:29:03,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:29:03,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-18 22:29:03,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:29:03,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553126577] [2020-08-18 22:29:03,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:29:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,841 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 22:29:04,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:29:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:29:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 22:29:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:29:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 22:29:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:29:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:29:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 22:29:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:29:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 22:29:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:29:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:29:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:04,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:29:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:05,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:29:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:05,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 22:29:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:05,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 22:29:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:05,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-18 22:29:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:05,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-18 22:29:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:05,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:29:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:05,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-18 22:29:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:05,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-18 22:29:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:29:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 22:29:05,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553126577] [2020-08-18 22:29:05,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:29:05,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 22:29:05,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849278042] [2020-08-18 22:29:05,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 22:29:05,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:29:05,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 22:29:05,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:29:05,071 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-18 22:29:07,564 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 22:29:08,762 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 22:29:12,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:29:12,897 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-18 22:29:12,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 22:29:12,898 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-18 22:29:12,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:29:12,902 INFO L225 Difference]: With dead ends: 495 [2020-08-18 22:29:12,903 INFO L226 Difference]: Without dead ends: 379 [2020-08-18 22:29:12,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-18 22:29:12,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-18 22:29:13,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-18 22:29:13,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-18 22:29:13,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-18 22:29:13,014 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-18 22:29:13,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:29:13,015 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-18 22:29:13,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 22:29:13,015 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-18 22:29:13,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-18 22:29:13,017 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:29:13,017 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:29:13,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 22:29:13,018 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:29:13,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:29:13,018 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-18 22:29:13,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:29:13,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731313531] [2020-08-18 22:29:13,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:29:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat