/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 -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 [2020-08-19 04:07:58,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 04:07:58,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 04:07:59,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 04:07:59,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 04:07:59,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 04:07:59,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 04:07:59,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 04:07:59,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 04:07:59,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 04:07:59,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 04:07:59,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 04:07:59,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 04:07:59,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 04:07:59,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 04:07:59,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 04:07:59,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 04:07:59,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 04:07:59,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 04:07:59,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 04:07:59,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 04:07:59,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 04:07:59,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 04:07:59,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 04:07:59,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 04:07:59,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 04:07:59,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 04:07:59,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 04:07:59,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 04:07:59,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 04:07:59,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 04:07:59,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 04:07:59,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 04:07:59,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 04:07:59,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 04:07:59,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 04:07:59,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 04:07:59,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 04:07:59,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:07:59,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:07:59,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:07:59,098 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 [2020-08-19 04:07:59,135 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:07:59,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:07:59,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:07:59,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:07:59,138 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:07:59,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:07:59,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 04:07:59,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:07:59,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 04:07:59,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:07:59,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:07:59,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:07:59,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:07:59,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 04:07:59,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:07:59,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:07:59,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:07:59,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:07:59,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:07:59,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:07:59,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:07:59,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:07:59,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:07:59,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:07:59,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:07:59,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:07:59,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:07:59,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:07:59,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:07:59,145 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=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; [2020-08-19 04:07:59,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:07:59,482 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:07:59,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:07:59,487 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:07:59,487 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:07:59,488 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-19 04:07:59,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7eca5ed9/81714c21f0574c7eb16c413b87ed9da4/FLAG0827e9760 [2020-08-19 04:08:00,156 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:08:00,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-19 04:08:00,200 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7eca5ed9/81714c21f0574c7eb16c413b87ed9da4/FLAG0827e9760 [2020-08-19 04:08:00,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7eca5ed9/81714c21f0574c7eb16c413b87ed9da4 [2020-08-19 04:08:00,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:08:00,385 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:08:00,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:08:00,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:08:00,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:08:00,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:08:00" (1/1) ... [2020-08-19 04:08:00,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71155234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:08:00, skipping insertion in model container [2020-08-19 04:08:00,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:08:00" (1/1) ... [2020-08-19 04:08:00,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:08:00,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:08:01,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:08:01,262 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:08:01,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:08:01,450 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:08:01,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:08:01 WrapperNode [2020-08-19 04:08:01,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:08:01,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:08:01,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:08:01,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:08:01,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:08:01" (1/1) ... [2020-08-19 04:08:01,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:08:01" (1/1) ... [2020-08-19 04:08:01,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:08:01" (1/1) ... [2020-08-19 04:08:01,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:08:01" (1/1) ... [2020-08-19 04:08:01,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:08:01" (1/1) ... [2020-08-19 04:08:01,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:08:01" (1/1) ... [2020-08-19 04:08:01,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:08:01" (1/1) ... [2020-08-19 04:08:01,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:08:01,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:08:01,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:08:01,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:08:01,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:08:01" (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 [2020-08-19 04:08:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:08:01,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:08:01,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 04:08:01,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-19 04:08:01,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-19 04:08:01,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-19 04:08:01,740 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-19 04:08:01,740 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-19 04:08:01,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 04:08:01,741 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:08:01,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-19 04:08:01,741 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 04:08:01,741 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 04:08:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 04:08:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 04:08:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 04:08:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-19 04:08:01,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-19 04:08:01,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-19 04:08:01,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-19 04:08:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-19 04:08:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-19 04:08:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-19 04:08:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-19 04:08:01,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-19 04:08:01,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-19 04:08:01,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-19 04:08:01,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-19 04:08:01,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-19 04:08:01,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-19 04:08:01,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-19 04:08:01,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-19 04:08:01,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-19 04:08:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-19 04:08:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-19 04:08:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-19 04:08:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-19 04:08:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-19 04:08:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-19 04:08:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-19 04:08:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-19 04:08:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-19 04:08:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-19 04:08:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-19 04:08:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-19 04:08:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-19 04:08:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-19 04:08:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-19 04:08:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-19 04:08:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-19 04:08:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 04:08:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-19 04:08:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 04:08:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 04:08:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 04:08:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 04:08:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 04:08:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 04:08:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-19 04:08:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-19 04:08:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-19 04:08:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-19 04:08:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-19 04:08:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-19 04:08:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-19 04:08:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-19 04:08:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-19 04:08:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-19 04:08:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-19 04:08:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-19 04:08:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-19 04:08:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-19 04:08:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-19 04:08:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-19 04:08:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-19 04:08:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-19 04:08:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-19 04:08:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-19 04:08:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-19 04:08:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-19 04:08:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-19 04:08:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-19 04:08:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-19 04:08:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-19 04:08:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-19 04:08:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-19 04:08:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-19 04:08:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-19 04:08:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-19 04:08:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-19 04:08:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-19 04:08:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:08:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 04:08:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 04:08:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-19 04:08:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-19 04:08:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-19 04:08:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 04:08:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 04:08:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 04:08:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-19 04:08:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-19 04:08:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-19 04:08:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-19 04:08:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-19 04:08:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-19 04:08:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-19 04:08:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-19 04:08:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-19 04:08:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-19 04:08:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 04:08:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 04:08:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:08:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-19 04:08:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 04:08:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 04:08:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-19 04:08:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-19 04:08:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-19 04:08:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-19 04:08:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-19 04:08:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-19 04:08:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-19 04:08:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-19 04:08:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-19 04:08:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-19 04:08:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-19 04:08:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-19 04:08:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-19 04:08:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-19 04:08:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-19 04:08:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-19 04:08:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-19 04:08:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-19 04:08:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-19 04:08:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-19 04:08:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-19 04:08:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-19 04:08:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-19 04:08:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-19 04:08:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-19 04:08:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-19 04:08:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-19 04:08:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-19 04:08:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-19 04:08:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-19 04:08:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-19 04:08:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-19 04:08:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-19 04:08:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 04:08:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-19 04:08:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-19 04:08:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 04:08:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 04:08:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 04:08:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 04:08:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 04:08:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 04:08:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 04:08:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 04:08:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 04:08:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 04:08:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 04:08:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 04:08:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 04:08:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 04:08:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 04:08:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 04:08:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-19 04:08:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-19 04:08:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-19 04:08:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-19 04:08:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-19 04:08:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-19 04:08:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-19 04:08:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-19 04:08:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-19 04:08:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-19 04:08:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-19 04:08:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-19 04:08:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-19 04:08:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-19 04:08:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-19 04:08:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-19 04:08:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-19 04:08:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-19 04:08:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-19 04:08:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-19 04:08:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-19 04:08:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-19 04:08:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-19 04:08:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-19 04:08:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-19 04:08:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-19 04:08:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:08:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 04:08:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:08:03,768 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:08:03,768 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-19 04:08:03,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:08:03 BoogieIcfgContainer [2020-08-19 04:08:03,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:08:03,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:08:03,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:08:03,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:08:03,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:08:00" (1/3) ... [2020-08-19 04:08:03,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ef7dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:08:03, skipping insertion in model container [2020-08-19 04:08:03,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:08:01" (2/3) ... [2020-08-19 04:08:03,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ef7dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:08:03, skipping insertion in model container [2020-08-19 04:08:03,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:08:03" (3/3) ... [2020-08-19 04:08:03,783 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-19 04:08:03,795 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:08:03,804 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 04:08:03,817 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 04:08:03,841 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:08:03,841 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:08:03,841 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:08:03,841 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:08:03,841 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:08:03,842 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:08:03,842 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:08:03,842 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:08:03,867 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-19 04:08:03,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-19 04:08:03,881 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:08:03,883 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] [2020-08-19 04:08:03,883 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:08:03,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:08:03,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-19 04:08:03,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:08:03,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134365027] [2020-08-19 04:08:03,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:08:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:05,962 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 04:08:05,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:08:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:08:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:08:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:08:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:08:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 04:08:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-19 04:08:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-19 04:08:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:08:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-19 04:08:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-19 04:08:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-19 04:08:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 04:08:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-19 04:08:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-19 04:08:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-19 04:08:06,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134365027] [2020-08-19 04:08:06,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:08:06,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 04:08:06,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979298463] [2020-08-19 04:08:06,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 04:08:06,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:08:06,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 04:08:06,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-19 04:08:06,440 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-19 04:08:08,695 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 04:08:10,254 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-19 04:08:11,454 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 04:08:12,716 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 04:08:18,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:08:18,703 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-19 04:08:18,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-19 04:08:18,705 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-19 04:08:18,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:08:18,722 INFO L225 Difference]: With dead ends: 573 [2020-08-19 04:08:18,723 INFO L226 Difference]: Without dead ends: 340 [2020-08-19 04:08:18,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-19 04:08:18,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-19 04:08:18,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-19 04:08:18,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-19 04:08:18,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-19 04:08:18,924 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-19 04:08:18,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:08:18,924 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-19 04:08:18,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 04:08:18,925 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-19 04:08:18,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-19 04:08:18,929 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:08:18,929 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] [2020-08-19 04:08:18,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:08:18,930 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:08:18,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:08:18,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-19 04:08:18,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:08:18,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132883241] [2020-08-19 04:08:18,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:08:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,147 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 04:08:20,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:08:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:08:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:08:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:08:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:08:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 04:08:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:08:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-19 04:08:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:08:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-19 04:08:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-19 04:08:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-19 04:08:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 04:08:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-19 04:08:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-19 04:08:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-19 04:08:20,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132883241] [2020-08-19 04:08:20,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:08:20,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-19 04:08:20,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359744211] [2020-08-19 04:08:20,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 04:08:20,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:08:20,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 04:08:20,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-19 04:08:20,563 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-19 04:08:22,230 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 04:08:23,808 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-19 04:08:24,991 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 04:08:26,168 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 04:08:30,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:08:30,654 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-19 04:08:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-19 04:08:30,655 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-19 04:08:30,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:08:30,660 INFO L225 Difference]: With dead ends: 509 [2020-08-19 04:08:30,660 INFO L226 Difference]: Without dead ends: 346 [2020-08-19 04:08:30,663 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 [2020-08-19 04:08:30,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-19 04:08:30,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-19 04:08:30,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-19 04:08:30,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-19 04:08:30,778 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-19 04:08:30,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:08:30,778 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-19 04:08:30,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 04:08:30,779 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-19 04:08:30,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-19 04:08:30,782 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:08:30,782 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] [2020-08-19 04:08:30,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 04:08:30,783 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:08:30,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:08:30,783 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-19 04:08:30,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:08:30,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323098026] [2020-08-19 04:08:30,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:08:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,052 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 04:08:32,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:08:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:08:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:08:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:08:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:08:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 04:08:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:08:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 04:08:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:08:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-19 04:08:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 04:08:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-19 04:08:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-19 04:08:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 04:08:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-19 04:08:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:32,472 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-19 04:08:32,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323098026] [2020-08-19 04:08:32,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:08:32,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-19 04:08:32,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472439859] [2020-08-19 04:08:32,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 04:08:32,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:08:32,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 04:08:32,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-19 04:08:32,476 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-19 04:08:34,674 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 04:08:36,224 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-19 04:08:37,353 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 04:08:38,526 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 04:08:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:08:42,842 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-19 04:08:42,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-19 04:08:42,843 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-19 04:08:42,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:08:42,846 INFO L225 Difference]: With dead ends: 509 [2020-08-19 04:08:42,847 INFO L226 Difference]: Without dead ends: 348 [2020-08-19 04:08:42,848 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 [2020-08-19 04:08:42,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-19 04:08:42,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-19 04:08:42,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-19 04:08:42,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-19 04:08:42,938 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-19 04:08:42,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:08:42,939 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-19 04:08:42,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 04:08:42,939 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-19 04:08:42,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-19 04:08:42,941 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:08:42,941 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] [2020-08-19 04:08:42,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 04:08:42,942 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:08:42,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:08:42,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-19 04:08:42,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:08:42,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [660621673] [2020-08-19 04:08:42,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:08:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,442 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 04:08:44,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:08:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:08:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:08:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:08:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:08:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 04:08:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:08:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-19 04:08:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:08:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-19 04:08:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 04:08:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-19 04:08:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 04:08:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-19 04:08:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 04:08:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:44,720 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 04:08:44,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [660621673] [2020-08-19 04:08:44,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:08:44,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 04:08:44,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796346026] [2020-08-19 04:08:44,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:08:44,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:08:44,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:08:44,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:08:44,723 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-19 04:08:47,188 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 04:08:51,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:08:51,405 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-19 04:08:51,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 04:08:51,406 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-19 04:08:51,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:08:51,410 INFO L225 Difference]: With dead ends: 463 [2020-08-19 04:08:51,410 INFO L226 Difference]: Without dead ends: 347 [2020-08-19 04:08:51,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-19 04:08:51,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-19 04:08:51,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-19 04:08:51,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-19 04:08:51,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-19 04:08:51,497 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-19 04:08:51,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:08:51,498 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-19 04:08:51,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:08:51,498 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-19 04:08:51,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-19 04:08:51,501 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:08:51,501 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] [2020-08-19 04:08:51,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 04:08:51,501 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:08:51,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:08:51,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-19 04:08:51,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:08:51,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624652860] [2020-08-19 04:08:51,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:08:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,741 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 04:08:52,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:08:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:08:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:08:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:08:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:08:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 04:08:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:08:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-19 04:08:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:08:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 04:08:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-19 04:08:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-19 04:08:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-19 04:08:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:08:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-19 04:08:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-19 04:08:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:08:52,974 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 04:08:52,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624652860] [2020-08-19 04:08:52,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:08:52,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 04:08:52,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136738566] [2020-08-19 04:08:52,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 04:08:52,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:08:52,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 04:08:52,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-19 04:08:52,978 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-19 04:08:55,588 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 04:08:56,746 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 502