/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=0.2 --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 22:44:01,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 22:44:01,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 22:44:02,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 22:44:02,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 22:44:02,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 22:44:02,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 22:44:02,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 22:44:02,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 22:44:02,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 22:44:02,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 22:44:02,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 22:44:02,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 22:44:02,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 22:44:02,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 22:44:02,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 22:44:02,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 22:44:02,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 22:44:02,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 22:44:02,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 22:44:02,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 22:44:02,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 22:44:02,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 22:44:02,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 22:44:02,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 22:44:02,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 22:44:02,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 22:44:02,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 22:44:02,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 22:44:02,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 22:44:02,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 22:44:02,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 22:44:02,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 22:44:02,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 22:44:02,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 22:44:02,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 22:44:02,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 22:44:02,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 22:44:02,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 22:44:02,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 22:44:02,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 22:44:02,096 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 22:44:02,135 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 22:44:02,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 22:44:02,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 22:44:02,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 22:44:02,138 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 22:44:02,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 22:44:02,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 22:44:02,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 22:44:02,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 22:44:02,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 22:44:02,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 22:44:02,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 22:44:02,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 22:44:02,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 22:44:02,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 22:44:02,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 22:44:02,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 22:44:02,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 22:44:02,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 22:44:02,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 22:44:02,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 22:44:02,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:44:02,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 22:44:02,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 22:44:02,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 22:44:02,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 22:44:02,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 22:44:02,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 22:44:02,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 22:44:02,144 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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-08-21 22:44:02,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 22:44:02,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 22:44:02,500 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 22:44:02,501 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 22:44:02,502 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 22:44:02,502 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 22:44:02,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a5f2253bf/addd0fb8da1a4fc88c565bdcaa018df8/FLAG6380f8aef [2020-08-21 22:44:03,179 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 22:44:03,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 22:44:03,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a5f2253bf/addd0fb8da1a4fc88c565bdcaa018df8/FLAG6380f8aef [2020-08-21 22:44:03,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a5f2253bf/addd0fb8da1a4fc88c565bdcaa018df8 [2020-08-21 22:44:03,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 22:44:03,372 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 22:44:03,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 22:44:03,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 22:44:03,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 22:44:03,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:44:03" (1/1) ... [2020-08-21 22:44:03,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389f1ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:44:03, skipping insertion in model container [2020-08-21 22:44:03,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:44:03" (1/1) ... [2020-08-21 22:44:03,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 22:44:03,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 22:44:04,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:44:04,243 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 22:44:04,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:44:04,419 INFO L208 MainTranslator]: Completed translation [2020-08-21 22:44:04,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:44:04 WrapperNode [2020-08-21 22:44:04,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 22:44:04,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 22:44:04,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 22:44:04,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 22:44:04,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:44:04" (1/1) ... [2020-08-21 22:44:04,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:44:04" (1/1) ... [2020-08-21 22:44:04,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:44:04" (1/1) ... [2020-08-21 22:44:04,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:44:04" (1/1) ... [2020-08-21 22:44:04,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:44:04" (1/1) ... [2020-08-21 22:44:04,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:44:04" (1/1) ... [2020-08-21 22:44:04,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:44:04" (1/1) ... [2020-08-21 22:44:04,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 22:44:04,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 22:44:04,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 22:44:04,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 22:44:04,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:44:04" (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 22:44:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 22:44:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 22:44:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 22:44:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-21 22:44:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-21 22:44:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-21 22:44:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-21 22:44:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-21 22:44:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 22:44:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 22:44:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-21 22:44:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 22:44:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 22:44:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 22:44:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 22:44:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 22:44:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-21 22:44:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-21 22:44:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-21 22:44:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-21 22:44:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-21 22:44:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-21 22:44:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-21 22:44:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-21 22:44:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-21 22:44:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-21 22:44:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-21 22:44:04,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-21 22:44:04,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-21 22:44:04,674 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-21 22:44:04,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-21 22:44:04,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-21 22:44:04,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-21 22:44:04,675 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-21 22:44:04,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-21 22:44:04,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-21 22:44:04,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-21 22:44:04,676 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-21 22:44:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-21 22:44:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-21 22:44:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-21 22:44:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-21 22:44:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-21 22:44:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-21 22:44:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-21 22:44:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-21 22:44:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-21 22:44:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-21 22:44:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-21 22:44:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 22:44:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 22:44:04,680 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-21 22:44:04,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 22:44:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 22:44:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 22:44:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 22:44:04,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 22:44:04,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 22:44:04,682 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-21 22:44:04,682 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-21 22:44:04,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-21 22:44:04,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-21 22:44:04,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-21 22:44:04,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-21 22:44:04,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-21 22:44:04,684 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-21 22:44:04,684 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-21 22:44:04,684 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-21 22:44:04,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-21 22:44:04,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-21 22:44:04,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-21 22:44:04,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-21 22:44:04,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-21 22:44:04,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-21 22:44:04,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-21 22:44:04,689 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-21 22:44:04,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-21 22:44:04,689 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-21 22:44:04,690 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-21 22:44:04,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-21 22:44:04,690 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-21 22:44:04,690 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-21 22:44:04,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-21 22:44:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-21 22:44:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-21 22:44:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-21 22:44:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-21 22:44:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-21 22:44:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-21 22:44:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-21 22:44:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-21 22:44:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 22:44:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 22:44:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 22:44:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-21 22:44:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-21 22:44:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-21 22:44:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 22:44:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 22:44:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 22:44:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-21 22:44:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-21 22:44:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-21 22:44:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-21 22:44:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-21 22:44:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-21 22:44:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-21 22:44:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-21 22:44:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-21 22:44:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-21 22:44:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 22:44:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 22:44:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 22:44:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-21 22:44:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 22:44:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 22:44:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-21 22:44:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-21 22:44:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-21 22:44:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-21 22:44:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-21 22:44:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-21 22:44:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-21 22:44:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-21 22:44:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-21 22:44:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-21 22:44:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-21 22:44:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-21 22:44:04,705 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-21 22:44:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-21 22:44:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-21 22:44:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-21 22:44:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-21 22:44:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-21 22:44:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-21 22:44:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-21 22:44:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-21 22:44:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-21 22:44:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-21 22:44:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-21 22:44:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-21 22:44:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-21 22:44:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-21 22:44:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-21 22:44:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-21 22:44:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-21 22:44:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-21 22:44:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-21 22:44:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 22:44:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 22:44:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-21 22:44:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-21 22:44:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 22:44:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 22:44:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 22:44:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 22:44:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 22:44:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 22:44:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 22:44:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 22:44:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 22:44:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 22:44:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 22:44:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 22:44:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 22:44:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 22:44:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 22:44:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 22:44:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-21 22:44:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-21 22:44:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-21 22:44:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-21 22:44:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-21 22:44:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-21 22:44:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-21 22:44:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-21 22:44:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-21 22:44:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-21 22:44:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-21 22:44:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-21 22:44:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-21 22:44:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-21 22:44:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-21 22:44:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-21 22:44:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-21 22:44:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-21 22:44:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-21 22:44:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-21 22:44:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-21 22:44:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-21 22:44:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-21 22:44:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-21 22:44:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-21 22:44:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-21 22:44:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 22:44:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 22:44:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 22:44:06,582 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 22:44:06,583 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 22:44:06,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:44:06 BoogieIcfgContainer [2020-08-21 22:44:06,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 22:44:06,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 22:44:06,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 22:44:06,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 22:44:06,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 10:44:03" (1/3) ... [2020-08-21 22:44:06,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0b297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:44:06, skipping insertion in model container [2020-08-21 22:44:06,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:44:04" (2/3) ... [2020-08-21 22:44:06,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0b297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:44:06, skipping insertion in model container [2020-08-21 22:44:06,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:44:06" (3/3) ... [2020-08-21 22:44:06,602 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-21 22:44:06,612 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 22:44:06,621 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 22:44:06,634 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 22:44:06,660 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 22:44:06,660 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 22:44:06,660 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 22:44:06,661 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 22:44:06,661 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 22:44:06,661 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 22:44:06,661 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 22:44:06,661 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 22:44:06,686 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-21 22:44:06,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-21 22:44:06,700 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:44:06,701 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 22:44:06,702 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:44:06,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:44:06,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-21 22:44:06,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:44:06,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296572141] [2020-08-21 22:44:06,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:44:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,666 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 22:44:08,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:44:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:44:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:44:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:44:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:44:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 22:44:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-21 22:44:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-21 22:44:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:44:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:08,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 22:44:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:09,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 22:44:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:09,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-21 22:44:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:09,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 22:44:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:09,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:09,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-21 22:44:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:09,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-21 22:44:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:09,104 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 22:44:09,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296572141] [2020-08-21 22:44:09,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:44:09,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-21 22:44:09,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413469018] [2020-08-21 22:44:09,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 22:44:09,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:44:09,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 22:44:09,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 22:44:09,130 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-21 22:44:11,158 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 22:44:12,632 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 22:44:13,852 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 22:44:15,056 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 22:44:20,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:44:20,790 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-21 22:44:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 22:44:20,792 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-21 22:44:20,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:44:20,809 INFO L225 Difference]: With dead ends: 573 [2020-08-21 22:44:20,809 INFO L226 Difference]: Without dead ends: 340 [2020-08-21 22:44:20,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-21 22:44:20,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-21 22:44:20,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-21 22:44:20,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-21 22:44:20,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-21 22:44:20,959 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-21 22:44:20,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:44:20,960 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-21 22:44:20,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 22:44:20,960 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-21 22:44:20,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-21 22:44:20,964 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:44:20,964 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 22:44:20,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 22:44:20,965 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:44:20,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:44:20,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-21 22:44:20,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:44:20,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809061516] [2020-08-21 22:44:20,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:44:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,197 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 22:44:22,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:44:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:44:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:44:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:44:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:44:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 22:44:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:44:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 22:44:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:44:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-21 22:44:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 22:44:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 22:44:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 22:44:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-21 22:44:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-21 22:44:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:22,568 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 22:44:22,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809061516] [2020-08-21 22:44:22,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:44:22,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 22:44:22,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095448515] [2020-08-21 22:44:22,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 22:44:22,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:44:22,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 22:44:22,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 22:44:22,573 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-21 22:44:24,469 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 22:44:26,071 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 22:44:27,303 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 22:44:28,497 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 22:44:33,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:44:33,025 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-21 22:44:33,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 22:44:33,026 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-21 22:44:33,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:44:33,033 INFO L225 Difference]: With dead ends: 509 [2020-08-21 22:44:33,034 INFO L226 Difference]: Without dead ends: 346 [2020-08-21 22:44:33,036 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 22:44:33,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-21 22:44:33,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-21 22:44:33,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 22:44:33,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-21 22:44:33,154 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-21 22:44:33,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:44:33,157 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-21 22:44:33,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 22:44:33,157 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-21 22:44:33,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-21 22:44:33,165 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:44:33,165 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 22:44:33,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 22:44:33,166 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:44:33,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:44:33,167 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-21 22:44:33,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:44:33,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151501320] [2020-08-21 22:44:33,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:44:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,410 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 22:44:34,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:44:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:44:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:44:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:44:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:44:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 22:44:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:44:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 22:44:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:44:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-21 22:44:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 22:44:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 22:44:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-21 22:44:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 22:44:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 22:44:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:34,763 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 22:44:34,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151501320] [2020-08-21 22:44:34,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:44:34,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 22:44:34,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290211675] [2020-08-21 22:44:34,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 22:44:34,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:44:34,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 22:44:34,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 22:44:34,766 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-21 22:44:36,358 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 22:44:37,935 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 22:44:39,076 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 22:44:40,225 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 22:44:44,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:44:44,499 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-21 22:44:44,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 22:44:44,500 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-21 22:44:44,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:44:44,503 INFO L225 Difference]: With dead ends: 509 [2020-08-21 22:44:44,503 INFO L226 Difference]: Without dead ends: 348 [2020-08-21 22:44:44,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 22:44:44,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-21 22:44:44,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-21 22:44:44,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 22:44:44,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-21 22:44:44,602 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-21 22:44:44,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:44:44,603 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-21 22:44:44,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 22:44:44,603 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-21 22:44:44,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-21 22:44:44,605 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:44:44,605 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 22:44:44,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 22:44:44,606 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:44:44,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:44:44,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-21 22:44:44,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:44:44,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413883378] [2020-08-21 22:44:44,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:44:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,325 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 22:44:46,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:44:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:44:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:44:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:44:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:44:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 22:44:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:44:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-21 22:44:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:44:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 22:44:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 22:44:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 22:44:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 22:44:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-21 22:44:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-21 22:44:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:46,550 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 22:44:46,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413883378] [2020-08-21 22:44:46,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:44:46,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 22:44:46,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032221904] [2020-08-21 22:44:46,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 22:44:46,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:44:46,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 22:44:46,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 22:44:46,555 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-21 22:44:48,582 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 22:44:52,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:44:52,646 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-21 22:44:52,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 22:44:52,649 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-21 22:44:52,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:44:52,652 INFO L225 Difference]: With dead ends: 463 [2020-08-21 22:44:52,652 INFO L226 Difference]: Without dead ends: 347 [2020-08-21 22:44:52,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-21 22:44:52,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-21 22:44:52,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-21 22:44:52,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-21 22:44:52,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-21 22:44:52,737 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-21 22:44:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:44:52,737 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-21 22:44:52,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 22:44:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-21 22:44:52,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-21 22:44:52,739 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:44:52,739 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 22:44:52,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 22:44:52,740 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:44:52,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:44:52,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-21 22:44:52,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:44:52,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242620302] [2020-08-21 22:44:52,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:44:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,051 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 22:44:54,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:44:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:44:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:44:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:44:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:44:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 22:44:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:44:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-21 22:44:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:44:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 22:44:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 22:44:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 22:44:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 22:44:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:44:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 22:44:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-21 22:44:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:44:54,296 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 22:44:54,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242620302] [2020-08-21 22:44:54,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:44:54,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 22:44:54,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961081755] [2020-08-21 22:44:54,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 22:44:54,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:44:54,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 22:44:54,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-21 22:44:54,300 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-21 22:44:56,367 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 22:44:57,548 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 22:45:01,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:45:01,409 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-21 22:45:01,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 22:45:01,409 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-21 22:45:01,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:45:01,414 INFO L225 Difference]: With dead ends: 495 [2020-08-21 22:45:01,414 INFO L226 Difference]: Without dead ends: 379 [2020-08-21 22:45:01,415 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 22:45:01,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-21 22:45:01,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-21 22:45:01,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-21 22:45:01,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-21 22:45:01,532 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-21 22:45:01,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:45:01,532 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-21 22:45:01,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 22:45:01,533 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-21 22:45:01,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-21 22:45:01,535 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:45:01,535 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 22:45:01,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 22:45:01,536 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:45:01,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:45:01,536 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-21 22:45:01,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:45:01,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638617481] [2020-08-21 22:45:01,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:45:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,788 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 22:45:02,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:45:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:45:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:45:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:45:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:45:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:45:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:45:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 22:45:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:45:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:45:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:45:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 22:45:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:45:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:45:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 22:45:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-21 22:45:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 22:45:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-21 22:45:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:45:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:02,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 22:45:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:03,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-21 22:45:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:45:03,039 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 22:45:03,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638617481] [2020-08-21 22:45:03,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:45:03,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 22:45:03,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294087682] [2020-08-21 22:45:03,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 22:45:03,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:45:03,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 22:45:03,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-21 22:45:03,042 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states. [2020-08-21 22:45:04,613 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502