/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 16:49:49,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 16:49:49,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 16:49:49,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 16:49:49,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 16:49:49,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 16:49:49,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 16:49:49,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 16:49:49,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 16:49:49,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 16:49:49,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 16:49:49,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 16:49:49,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 16:49:49,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 16:49:49,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 16:49:49,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 16:49:49,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 16:49:49,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 16:49:49,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 16:49:49,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 16:49:49,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 16:49:49,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 16:49:49,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 16:49:49,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 16:49:49,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 16:49:49,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 16:49:49,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 16:49:49,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 16:49:49,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 16:49:49,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 16:49:49,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 16:49:49,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 16:49:49,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 16:49:49,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 16:49:49,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 16:49:49,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 16:49:49,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 16:49:49,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 16:49:49,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 16:49:49,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 16:49:49,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 16:49:49,833 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 16:49:49,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 16:49:49,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 16:49:49,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 16:49:49,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 16:49:49,857 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 16:49:49,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 16:49:49,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 16:49:49,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 16:49:49,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 16:49:49,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 16:49:49,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 16:49:49,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 16:49:49,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 16:49:49,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 16:49:49,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 16:49:49,859 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 16:49:49,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 16:49:49,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 16:49:49,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 16:49:49,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 16:49:49,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 16:49:49,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 16:49:49,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 16:49:49,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 16:49:49,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 16:49:49,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 16:49:49,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 16:49:49,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 16:49:49,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 16:49:49,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; [2020-08-18 16:49:50,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 16:49:50,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 16:49:50,252 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 16:49:50,254 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 16:49:50,254 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 16:49:50,256 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 16:49:50,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbc1efeda/d558da7d4b4a472ea84e7db85d17cb75/FLAG0aa6f7ae2 [2020-08-18 16:49:50,960 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 16:49:50,960 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 16:49:50,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbc1efeda/d558da7d4b4a472ea84e7db85d17cb75/FLAG0aa6f7ae2 [2020-08-18 16:49:51,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbc1efeda/d558da7d4b4a472ea84e7db85d17cb75 [2020-08-18 16:49:51,210 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 16:49:51,212 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 16:49:51,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 16:49:51,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 16:49:51,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 16:49:51,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 04:49:51" (1/1) ... [2020-08-18 16:49:51,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697fd79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:49:51, skipping insertion in model container [2020-08-18 16:49:51,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 04:49:51" (1/1) ... [2020-08-18 16:49:51,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 16:49:51,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 16:49:52,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 16:49:52,248 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 16:49:52,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 16:49:52,419 INFO L208 MainTranslator]: Completed translation [2020-08-18 16:49:52,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:49:52 WrapperNode [2020-08-18 16:49:52,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 16:49:52,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 16:49:52,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 16:49:52,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 16:49:52,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:49:52" (1/1) ... [2020-08-18 16:49:52,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:49:52" (1/1) ... [2020-08-18 16:49:52,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:49:52" (1/1) ... [2020-08-18 16:49:52,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:49:52" (1/1) ... [2020-08-18 16:49:52,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:49:52" (1/1) ... [2020-08-18 16:49:52,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:49:52" (1/1) ... [2020-08-18 16:49:52,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:49:52" (1/1) ... [2020-08-18 16:49:52,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 16:49:52,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 16:49:52,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 16:49:52,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 16:49:52,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:49:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 16:49:52,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 16:49:52,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 16:49:52,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 16:49:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-18 16:49:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-18 16:49:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-18 16:49:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-18 16:49:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-18 16:49:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 16:49:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 16:49:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-18 16:49:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 16:49:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 16:49:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 16:49:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 16:49:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 16:49:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-18 16:49:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-18 16:49:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-18 16:49:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-18 16:49:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-18 16:49:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-18 16:49:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-18 16:49:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-18 16:49:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-18 16:49:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-18 16:49:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-18 16:49:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-18 16:49:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-18 16:49:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-18 16:49:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-18 16:49:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-18 16:49:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-18 16:49:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-18 16:49:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-18 16:49:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-18 16:49:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-18 16:49:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-18 16:49:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-18 16:49:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-18 16:49:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-18 16:49:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-18 16:49:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-18 16:49:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-18 16:49:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-18 16:49:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-18 16:49:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-18 16:49:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-18 16:49:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-18 16:49:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 16:49:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 16:49:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-18 16:49:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 16:49:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 16:49:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 16:49:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 16:49:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 16:49:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 16:49:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-18 16:49:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-18 16:49:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-18 16:49:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-18 16:49:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-18 16:49:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-18 16:49:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-18 16:49:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-18 16:49:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-18 16:49:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-18 16:49:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-18 16:49:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-18 16:49:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-18 16:49:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-18 16:49:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-18 16:49:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-18 16:49:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-18 16:49:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-18 16:49:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-18 16:49:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-18 16:49:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-18 16:49:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-18 16:49:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-18 16:49:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-18 16:49:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-18 16:49:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-18 16:49:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-18 16:49:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-18 16:49:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-18 16:49:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-18 16:49:52,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-18 16:49:52,744 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-18 16:49:52,744 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-18 16:49:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 16:49:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 16:49:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 16:49:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-18 16:49:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-18 16:49:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-18 16:49:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 16:49:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 16:49:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 16:49:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-18 16:49:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-18 16:49:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-18 16:49:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-18 16:49:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-18 16:49:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-18 16:49:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-18 16:49:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-18 16:49:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-18 16:49:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-18 16:49:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 16:49:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 16:49:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 16:49:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-18 16:49:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 16:49:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 16:49:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-18 16:49:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-18 16:49:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-18 16:49:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-18 16:49:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-18 16:49:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-18 16:49:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-18 16:49:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-18 16:49:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-18 16:49:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-18 16:49:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-18 16:49:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-18 16:49:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-18 16:49:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-18 16:49:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-18 16:49:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-18 16:49:52,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-18 16:49:52,762 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-18 16:49:52,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-18 16:49:52,763 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-18 16:49:52,763 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-18 16:49:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-18 16:49:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-18 16:49:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-18 16:49:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-18 16:49:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-18 16:49:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-18 16:49:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-18 16:49:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-18 16:49:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-18 16:49:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-18 16:49:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-18 16:49:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 16:49:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 16:49:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-18 16:49:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-18 16:49:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 16:49:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 16:49:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 16:49:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 16:49:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 16:49:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 16:49:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 16:49:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 16:49:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 16:49:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 16:49:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 16:49:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 16:49:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 16:49:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 16:49:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 16:49:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 16:49:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-18 16:49:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-18 16:49:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-18 16:49:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-18 16:49:52,782 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-18 16:49:52,782 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-18 16:49:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-18 16:49:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-18 16:49:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-18 16:49:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-18 16:49:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-18 16:49:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-18 16:49:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-18 16:49:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-18 16:49:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-18 16:49:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-18 16:49:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-18 16:49:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-18 16:49:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-18 16:49:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-18 16:49:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-18 16:49:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-18 16:49:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-18 16:49:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-18 16:49:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-18 16:49:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-18 16:49:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 16:49:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 16:49:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 16:49:54,800 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 16:49:54,801 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 16:49:54,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 04:49:54 BoogieIcfgContainer [2020-08-18 16:49:54,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 16:49:54,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 16:49:54,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 16:49:54,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 16:49:54,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 04:49:51" (1/3) ... [2020-08-18 16:49:54,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9451577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 04:49:54, skipping insertion in model container [2020-08-18 16:49:54,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:49:52" (2/3) ... [2020-08-18 16:49:54,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9451577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 04:49:54, skipping insertion in model container [2020-08-18 16:49:54,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 04:49:54" (3/3) ... [2020-08-18 16:49:54,816 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-18 16:49:54,827 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 16:49:54,837 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 16:49:54,854 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 16:49:54,883 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 16:49:54,883 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 16:49:54,883 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 16:49:54,883 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 16:49:54,884 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 16:49:54,884 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 16:49:54,884 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 16:49:54,884 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 16:49:54,910 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-18 16:49:54,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-18 16:49:54,924 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:49:54,926 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:49:54,926 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:49:54,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:49:54,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-18 16:49:54,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:49:54,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035228646] [2020-08-18 16:49:54,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:49:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:56,924 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 16:49:56,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:49:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:56,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:49:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:56,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:49:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:56,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:49:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:49:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:49:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:49:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 16:49:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:49:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 16:49:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:49:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-18 16:49:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:49:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:49:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-18 16:49:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-18 16:49:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-18 16:49:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-18 16:49:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:49:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-18 16:49:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-18 16:49:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:49:57,412 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 16:49:57,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035228646] [2020-08-18 16:49:57,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 16:49:57,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-18 16:49:57,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629946237] [2020-08-18 16:49:57,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 16:49:57,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:49:57,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 16:49:57,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 16:49:57,439 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-18 16:49:59,435 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 16:50:00,941 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 16:50:02,180 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 16:50:03,569 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 16:50:09,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:50:09,673 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-18 16:50:09,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-18 16:50:09,675 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-18 16:50:09,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:50:09,693 INFO L225 Difference]: With dead ends: 573 [2020-08-18 16:50:09,693 INFO L226 Difference]: Without dead ends: 340 [2020-08-18 16:50:09,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-18 16:50:09,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-18 16:50:09,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-18 16:50:09,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-18 16:50:09,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-18 16:50:09,859 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-18 16:50:09,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:50:09,860 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-18 16:50:09,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 16:50:09,860 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-18 16:50:09,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-18 16:50:09,864 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:50:09,864 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:50:09,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 16:50:09,865 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:50:09,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:50:09,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-18 16:50:09,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:50:09,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365892562] [2020-08-18 16:50:09,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:50:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,082 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 16:50:11,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:50:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:50:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:50:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:50:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:50:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 16:50:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 16:50:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 16:50:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:50:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-18 16:50:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-18 16:50:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 16:50:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 16:50:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-18 16:50:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-18 16:50:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:11,426 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 16:50:11,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365892562] [2020-08-18 16:50:11,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:50:11,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 16:50:11,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260961012] [2020-08-18 16:50:11,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 16:50:11,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:50:11,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 16:50:11,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 16:50:11,431 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-18 16:50:13,187 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 16:50:14,698 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 16:50:15,849 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 16:50:17,054 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 16:50:21,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:50:21,590 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-18 16:50:21,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 16:50:21,594 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-18 16:50:21,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:50:21,598 INFO L225 Difference]: With dead ends: 509 [2020-08-18 16:50:21,599 INFO L226 Difference]: Without dead ends: 346 [2020-08-18 16:50:21,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 16:50:21,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-18 16:50:21,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-18 16:50:21,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 16:50:21,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-18 16:50:21,708 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-18 16:50:21,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:50:21,709 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-18 16:50:21,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 16:50:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-18 16:50:21,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-18 16:50:21,712 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:50:21,712 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:50:21,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 16:50:21,713 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:50:21,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:50:21,713 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-18 16:50:21,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:50:21,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934878678] [2020-08-18 16:50:21,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:50:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:22,976 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 16:50:22,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:50:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:50:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:50:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:50:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:50:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 16:50:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 16:50:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 16:50:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:50:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-18 16:50:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 16:50:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 16:50:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-18 16:50:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 16:50:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 16:50:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:23,310 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 16:50:23,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934878678] [2020-08-18 16:50:23,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:50:23,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 16:50:23,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692347769] [2020-08-18 16:50:23,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 16:50:23,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:50:23,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 16:50:23,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 16:50:23,313 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-18 16:50:25,146 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 16:50:26,707 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 16:50:27,862 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 16:50:29,019 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 16:50:33,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:50:33,292 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-18 16:50:33,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 16:50:33,293 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-18 16:50:33,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:50:33,297 INFO L225 Difference]: With dead ends: 509 [2020-08-18 16:50:33,297 INFO L226 Difference]: Without dead ends: 348 [2020-08-18 16:50:33,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 16:50:33,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-18 16:50:33,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-18 16:50:33,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 16:50:33,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-18 16:50:33,398 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-18 16:50:33,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:50:33,399 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-18 16:50:33,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 16:50:33,399 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-18 16:50:33,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-18 16:50:33,401 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:50:33,401 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:50:33,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 16:50:33,402 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:50:33,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:50:33,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-18 16:50:33,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:50:33,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509774333] [2020-08-18 16:50:33,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:50:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,129 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 16:50:35,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:50:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:50:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:50:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:50:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:50:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 16:50:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 16:50:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-18 16:50:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:50:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 16:50:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 16:50:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 16:50:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 16:50:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-18 16:50:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-18 16:50:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 16:50:35,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509774333] [2020-08-18 16:50:35,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:50:35,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 16:50:35,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078413071] [2020-08-18 16:50:35,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 16:50:35,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:50:35,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 16:50:35,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-18 16:50:35,380 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-18 16:50:37,502 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 16:50:41,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:50:41,316 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-18 16:50:41,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 16:50:41,317 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-18 16:50:41,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:50:41,320 INFO L225 Difference]: With dead ends: 463 [2020-08-18 16:50:41,320 INFO L226 Difference]: Without dead ends: 347 [2020-08-18 16:50:41,322 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 [2020-08-18 16:50:41,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-18 16:50:41,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-18 16:50:41,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-18 16:50:41,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-18 16:50:41,413 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-18 16:50:41,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:50:41,414 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-18 16:50:41,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 16:50:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-18 16:50:41,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-18 16:50:41,416 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:50:41,416 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:50:41,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 16:50:41,417 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:50:41,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:50:41,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-18 16:50:41,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:50:41,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816004054] [2020-08-18 16:50:41,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:50:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,717 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 16:50:42,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:50:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:50:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:50:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:50:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:50:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 16:50:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 16:50:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 16:50:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:50:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 16:50:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 16:50:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-18 16:50:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-18 16:50:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-18 16:50:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-18 16:50:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 16:50:42,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816004054] [2020-08-18 16:50:42,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 16:50:42,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 16:50:42,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612390961] [2020-08-18 16:50:42,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 16:50:42,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:50:42,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 16:50:42,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-18 16:50:42,966 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-18 16:50:44,995 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 16:50:46,182 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 16:50:50,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:50:50,262 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-18 16:50:50,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 16:50:50,263 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-18 16:50:50,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:50:50,266 INFO L225 Difference]: With dead ends: 495 [2020-08-18 16:50:50,267 INFO L226 Difference]: Without dead ends: 379 [2020-08-18 16:50:50,268 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 [2020-08-18 16:50:50,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-18 16:50:50,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-18 16:50:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-18 16:50:50,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-18 16:50:50,366 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-18 16:50:50,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:50:50,367 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-18 16:50:50,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 16:50:50,367 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-18 16:50:50,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-18 16:50:50,370 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:50:50,370 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:50:50,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 16:50:50,371 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:50:50,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:50:50,371 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-18 16:50:50,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:50:50,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971460338] [2020-08-18 16:50:50,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:50:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,615 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 16:50:51,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:50:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:50:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:50:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:50:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:50:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 16:50:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 16:50:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 16:50:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:50:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 16:50:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-18 16:50:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-18 16:50:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-18 16:50:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:50:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 16:50:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-18 16:50:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:50:51,865 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 16:50:51,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [971460338] [2020-08-18 16:50:51,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:50:51,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 16:50:51,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594826522] [2020-08-18 16:50:51,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 16:50:51,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:50:51,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 16:50:51,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-18 16:50:51,868 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states.