/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -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 0.1.25-177f698 [2020-08-21 23:32:30,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 23:32:30,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 23:32:30,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 23:32:30,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 23:32:30,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 23:32:30,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 23:32:30,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 23:32:30,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 23:32:30,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 23:32:30,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 23:32:30,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 23:32:30,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:32:30,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:32:30,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:32:30,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:32:30,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:32:30,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:32:30,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:32:30,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:32:30,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:32:30,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:32:30,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:32:30,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:32:30,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 23:32:30,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 23:32:30,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 23:32:30,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 23:32:30,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 23:32:30,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 23:32:30,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 23:32:30,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 23:32:30,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 23:32:30,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 23:32:30,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 23:32:30,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 23:32:30,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 23:32:30,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 23:32:30,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:32:30,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:32:30,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:32:30,766 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 [2020-08-21 23:32:30,809 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:32:30,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:32:30,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:32:30,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:32:30,812 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:32:30,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:32:30,812 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 23:32:30,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:32:30,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 23:32:30,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:32:30,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:32:30,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:32:30,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:32:30,815 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 23:32:30,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:32:30,815 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:32:30,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:32:30,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:32:30,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:32:30,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:32:30,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:32:30,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:32:30,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:32:30,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:32:30,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:32:30,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:32:30,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:32:30,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:32:30,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:32:30,818 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=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-08-21 23:32:31,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:32:31,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:32:31,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:32:31,193 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:32:31,194 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:32:31,194 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 23:32:31,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/383997aaf/ffcf200ed3db490a9c3e1a63bfc62cc7/FLAG6e7072db4 [2020-08-21 23:32:31,823 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:32:31,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 23:32:31,843 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/383997aaf/ffcf200ed3db490a9c3e1a63bfc62cc7/FLAG6e7072db4 [2020-08-21 23:32:32,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/383997aaf/ffcf200ed3db490a9c3e1a63bfc62cc7 [2020-08-21 23:32:32,113 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:32:32,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:32:32,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:32:32,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:32:32,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:32:32,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:32:32" (1/1) ... [2020-08-21 23:32:32,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697fd79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:32:32, skipping insertion in model container [2020-08-21 23:32:32,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:32:32" (1/1) ... [2020-08-21 23:32:32,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:32:32,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:32:32,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:32:32,909 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:32:33,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:32:33,142 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:32:33,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:32:33 WrapperNode [2020-08-21 23:32:33,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:32:33,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:32:33,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:32:33,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:32:33,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:32:33" (1/1) ... [2020-08-21 23:32:33,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:32:33" (1/1) ... [2020-08-21 23:32:33,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:32:33" (1/1) ... [2020-08-21 23:32:33,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:32:33" (1/1) ... [2020-08-21 23:32:33,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:32:33" (1/1) ... [2020-08-21 23:32:33,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:32:33" (1/1) ... [2020-08-21 23:32:33,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:32:33" (1/1) ... [2020-08-21 23:32:33,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:32:33,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:32:33,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:32:33,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:32:33,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:32:33" (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 [2020-08-21 23:32:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:32:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:32:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 23:32:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-21 23:32:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-21 23:32:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-21 23:32:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-21 23:32:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-21 23:32:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 23:32:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:32:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-21 23:32:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 23:32:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 23:32:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 23:32:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 23:32:33,397 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 23:32:33,397 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-21 23:32:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-21 23:32:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-21 23:32:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-21 23:32:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-21 23:32:33,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-21 23:32:33,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-21 23:32:33,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-21 23:32:33,402 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-21 23:32:33,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-21 23:32:33,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-21 23:32:33,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-21 23:32:33,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-21 23:32:33,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-21 23:32:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-21 23:32:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-21 23:32:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-21 23:32:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-21 23:32:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-21 23:32:33,405 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-21 23:32:33,405 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-21 23:32:33,405 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-21 23:32:33,405 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-21 23:32:33,405 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-21 23:32:33,405 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-21 23:32:33,406 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-21 23:32:33,406 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-21 23:32:33,406 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-21 23:32:33,407 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-21 23:32:33,407 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-21 23:32:33,408 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-21 23:32:33,408 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-21 23:32:33,408 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-21 23:32:33,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 23:32:33,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 23:32:33,409 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-21 23:32:33,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 23:32:33,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 23:32:33,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 23:32:33,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 23:32:33,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 23:32:33,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 23:32:33,410 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-21 23:32:33,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-21 23:32:33,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-21 23:32:33,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-21 23:32:33,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-21 23:32:33,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-21 23:32:33,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-21 23:32:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-21 23:32:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-21 23:32:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-21 23:32:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-21 23:32:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-21 23:32:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-21 23:32:33,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-21 23:32:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-21 23:32:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-21 23:32:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-21 23:32:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-21 23:32:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-21 23:32:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-21 23:32:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-21 23:32:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-21 23:32:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-21 23:32:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-21 23:32:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-21 23:32:33,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-21 23:32:33,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-21 23:32:33,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-21 23:32:33,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-21 23:32:33,417 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-21 23:32:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-21 23:32:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-21 23:32:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-21 23:32:33,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:32:33,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 23:32:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 23:32:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-21 23:32:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-21 23:32:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-21 23:32:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 23:32:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 23:32:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 23:32:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-21 23:32:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-21 23:32:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-21 23:32:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-21 23:32:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-21 23:32:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-21 23:32:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-21 23:32:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-21 23:32:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-21 23:32:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-21 23:32:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 23:32:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 23:32:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:32:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-21 23:32:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 23:32:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 23:32:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-21 23:32:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-21 23:32:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-21 23:32:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-21 23:32:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-21 23:32:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-21 23:32:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-21 23:32:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-21 23:32:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-21 23:32:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-21 23:32:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-21 23:32:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-21 23:32:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-21 23:32:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-21 23:32:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-21 23:32:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-21 23:32:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-21 23:32:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-21 23:32:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-21 23:32:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-21 23:32:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-21 23:32:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-21 23:32:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-21 23:32:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-21 23:32:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-21 23:32:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-21 23:32:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-21 23:32:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-21 23:32:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-21 23:32:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-21 23:32:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-21 23:32:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-21 23:32:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 23:32:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 23:32:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-21 23:32:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-21 23:32:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 23:32:33,446 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 23:32:33,446 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 23:32:33,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 23:32:33,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 23:32:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 23:32:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 23:32:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 23:32:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 23:32:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 23:32:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 23:32:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 23:32:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 23:32:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 23:32:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 23:32:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 23:32:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-21 23:32:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-21 23:32:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-21 23:32:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-21 23:32:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-21 23:32:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-21 23:32:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-21 23:32:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-21 23:32:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-21 23:32:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-21 23:32:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-21 23:32:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-21 23:32:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-21 23:32:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-21 23:32:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-21 23:32:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-21 23:32:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-21 23:32:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-21 23:32:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-21 23:32:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-21 23:32:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-21 23:32:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-21 23:32:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-21 23:32:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-21 23:32:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-21 23:32:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-21 23:32:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:32:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 23:32:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:32:35,406 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:32:35,406 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 23:32:35,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:32:35 BoogieIcfgContainer [2020-08-21 23:32:35,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:32:35,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:32:35,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:32:35,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:32:35,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:32:32" (1/3) ... [2020-08-21 23:32:35,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9451577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:32:35, skipping insertion in model container [2020-08-21 23:32:35,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:32:33" (2/3) ... [2020-08-21 23:32:35,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9451577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:32:35, skipping insertion in model container [2020-08-21 23:32:35,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:32:35" (3/3) ... [2020-08-21 23:32:35,425 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-21 23:32:35,435 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:32:35,443 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 23:32:35,456 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 23:32:35,481 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:32:35,481 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:32:35,481 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:32:35,481 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:32:35,482 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:32:35,482 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:32:35,482 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:32:35,482 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:32:35,507 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-21 23:32:35,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-21 23:32:35,521 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:32:35,522 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] [2020-08-21 23:32:35,523 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:32:35,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:32:35,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-21 23:32:35,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:32:35,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035228646] [2020-08-21 23:32:35,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:32:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:37,549 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 23:32:37,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:32:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:37,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:32:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:37,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:32:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:37,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:32:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:37,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:32:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:37,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:32:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:37,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:32:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:37,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:32:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:37,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:32:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:37,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-21 23:32:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:37,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:32:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:37,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-21 23:32:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:38,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:32:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:38,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:32:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:38,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 23:32:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:38,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 23:32:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:38,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-21 23:32:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:38,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 23:32:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:38,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:32:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:38,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-21 23:32:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:38,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-21 23:32:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:38,138 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 23:32:38,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035228646] [2020-08-21 23:32:38,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:32:38,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-21 23:32:38,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679756798] [2020-08-21 23:32:38,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 23:32:38,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:32:38,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 23:32:38,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 23:32:38,169 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-21 23:32:40,287 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 23:32:41,840 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 23:32:43,094 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 23:32:44,359 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 23:32:50,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:32:50,186 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-21 23:32:50,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 23:32:50,188 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-21 23:32:50,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:32:50,204 INFO L225 Difference]: With dead ends: 573 [2020-08-21 23:32:50,204 INFO L226 Difference]: Without dead ends: 340 [2020-08-21 23:32:50,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-21 23:32:50,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-21 23:32:50,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-21 23:32:50,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-21 23:32:50,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-21 23:32:50,352 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-21 23:32:50,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:32:50,353 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-21 23:32:50,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 23:32:50,353 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-21 23:32:50,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-21 23:32:50,357 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:32:50,357 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] [2020-08-21 23:32:50,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:32:50,358 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:32:50,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:32:50,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-21 23:32:50,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:32:50,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544886013] [2020-08-21 23:32:50,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:32:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,571 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 23:32:51,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:32:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:32:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:32:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:32:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:32:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:32:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:32:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:32:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:32:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:32:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:32:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 23:32:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:32:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:32:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-21 23:32:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 23:32:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 23:32:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 23:32:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:32:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-21 23:32:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-21 23:32:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:32:51,917 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 23:32:51,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544886013] [2020-08-21 23:32:51,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:32:51,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 23:32:51,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328337065] [2020-08-21 23:32:51,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 23:32:51,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:32:51,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 23:32:51,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 23:32:51,922 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-21 23:32:53,634 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 23:32:55,183 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 23:32:56,400 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 23:32:57,634 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 23:33:02,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:33:02,202 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-21 23:33:02,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 23:33:02,203 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-21 23:33:02,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:33:02,208 INFO L225 Difference]: With dead ends: 509 [2020-08-21 23:33:02,208 INFO L226 Difference]: Without dead ends: 346 [2020-08-21 23:33:02,211 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 [2020-08-21 23:33:02,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-21 23:33:02,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-21 23:33:02,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 23:33:02,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-21 23:33:02,303 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-21 23:33:02,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:33:02,304 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-21 23:33:02,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 23:33:02,304 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-21 23:33:02,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-21 23:33:02,307 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:33:02,307 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] [2020-08-21 23:33:02,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 23:33:02,307 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:33:02,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:33:02,308 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-21 23:33:02,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:33:02,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143333259] [2020-08-21 23:33:02,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:33:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,534 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 23:33:03,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:33:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:33:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:33:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:33:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:33:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:33:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:33:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 23:33:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:33:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-21 23:33:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 23:33:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 23:33:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-21 23:33:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 23:33:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 23:33:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:03,974 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 23:33:03,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143333259] [2020-08-21 23:33:03,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:33:03,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 23:33:03,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42679391] [2020-08-21 23:33:03,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 23:33:03,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:33:03,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 23:33:03,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 23:33:03,978 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-21 23:33:05,936 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 23:33:07,527 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 23:33:08,689 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 23:33:09,869 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 23:33:14,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:33:14,119 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-21 23:33:14,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 23:33:14,120 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-21 23:33:14,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:33:14,123 INFO L225 Difference]: With dead ends: 509 [2020-08-21 23:33:14,124 INFO L226 Difference]: Without dead ends: 348 [2020-08-21 23:33:14,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 23:33:14,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-21 23:33:14,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-21 23:33:14,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 23:33:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-21 23:33:14,221 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-21 23:33:14,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:33:14,222 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-21 23:33:14,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 23:33:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-21 23:33:14,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-21 23:33:14,224 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:33:14,224 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] [2020-08-21 23:33:14,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 23:33:14,225 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:33:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:33:14,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-21 23:33:14,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:33:14,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798458587] [2020-08-21 23:33:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:33:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,405 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 23:33:15,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:33:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:33:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:33:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:33:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:33:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:33:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:33:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-21 23:33:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:33:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 23:33:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 23:33:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:33:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 23:33:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-21 23:33:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-21 23:33:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:15,660 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 23:33:15,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798458587] [2020-08-21 23:33:15,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:33:15,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 23:33:15,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681136181] [2020-08-21 23:33:15,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 23:33:15,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:33:15,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 23:33:15,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:33:15,667 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-21 23:33:18,351 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 23:33:22,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:33:22,548 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-21 23:33:22,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 23:33:22,548 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-21 23:33:22,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:33:22,552 INFO L225 Difference]: With dead ends: 463 [2020-08-21 23:33:22,552 INFO L226 Difference]: Without dead ends: 347 [2020-08-21 23:33:22,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-21 23:33:22,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-21 23:33:22,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-21 23:33:22,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-21 23:33:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-21 23:33:22,641 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-21 23:33:22,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:33:22,641 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-21 23:33:22,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 23:33:22,642 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-21 23:33:22,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-21 23:33:22,644 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:33:22,644 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] [2020-08-21 23:33:22,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 23:33:22,645 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:33:22,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:33:22,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-21 23:33:22,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:33:22,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32353401] [2020-08-21 23:33:22,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:33:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:23,955 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 23:33:23,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:33:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:23,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:33:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:23,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:33:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:23,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:33:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:33:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:33:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:33:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-21 23:33:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:33:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 23:33:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 23:33:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 23:33:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 23:33:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:33:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 23:33:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-21 23:33:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:33:24,198 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 23:33:24,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32353401] [2020-08-21 23:33:24,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:33:24,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 23:33:24,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263014261] [2020-08-21 23:33:24,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 23:33:24,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:33:24,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 23:33:24,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:33:24,202 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-21 23:33:26,280 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 23:33:27,453 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 23:33:31,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:33:31,379 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-21 23:33:31,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 23:33:31,380 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-21 23:33:31,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:33:31,385 INFO L225 Difference]: With dead ends: 495 [2020-08-21 23:33:31,385 INFO L226 Difference]: Without dead ends: 379 [2020-08-21 23:33:31,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-21 23:33:31,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-21 23:33:31,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-21 23:33:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-21 23:33:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-21 23:33:31,506 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-21 23:33:31,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:33:31,507 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-21 23:33:31,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 23:33:31,507 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-21 23:33:31,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-21 23:33:31,509 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:33:31,510 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] [2020-08-21 23:33:31,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 23:33:31,510 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:33:31,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:33:31,510 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-21 23:33:31,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:33:31,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [268030120] [2020-08-21 23:33:31,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:33:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat