/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 14:40:26,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 14:40:26,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 14:40:26,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 14:40:26,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 14:40:26,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 14:40:26,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 14:40:26,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 14:40:26,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 14:40:26,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 14:40:26,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 14:40:26,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 14:40:26,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 14:40:26,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 14:40:26,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 14:40:26,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 14:40:26,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 14:40:26,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 14:40:26,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 14:40:26,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 14:40:26,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 14:40:26,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 14:40:26,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 14:40:26,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 14:40:26,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 14:40:26,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 14:40:26,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 14:40:26,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 14:40:26,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 14:40:26,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 14:40:26,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 14:40:26,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 14:40:26,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 14:40:26,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 14:40:26,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 14:40:26,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 14:40:26,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 14:40:26,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 14:40:26,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 14:40:26,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 14:40:26,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 14:40:26,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 14:40:26,225 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 14:40:26,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 14:40:26,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 14:40:26,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 14:40:26,227 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 14:40:26,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 14:40:26,228 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 14:40:26,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 14:40:26,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 14:40:26,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 14:40:26,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 14:40:26,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 14:40:26,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 14:40:26,229 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 14:40:26,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 14:40:26,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 14:40:26,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 14:40:26,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 14:40:26,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 14:40:26,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 14:40:26,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 14:40:26,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 14:40:26,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 14:40:26,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 14:40:26,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 14:40:26,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 14:40:26,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 14:40:26,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 14:40:26,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 14:40:26,232 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 -> interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> interpolation-heuristic=FIRST;log-additional-information=true; [2020-08-21 14:40:26,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 14:40:26,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 14:40:26,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 14:40:26,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 14:40:26,557 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 14:40:26,558 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 14:40:26,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25f4b43e5/b732037b2e2a4df2b6cf3eb025fd32cf/FLAGe18d47d9b [2020-08-21 14:40:27,266 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 14:40:27,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 14:40:27,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25f4b43e5/b732037b2e2a4df2b6cf3eb025fd32cf/FLAGe18d47d9b [2020-08-21 14:40:27,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25f4b43e5/b732037b2e2a4df2b6cf3eb025fd32cf [2020-08-21 14:40:27,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 14:40:27,466 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 14:40:27,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 14:40:27,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 14:40:27,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 14:40:27,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:40:27" (1/1) ... [2020-08-21 14:40:27,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:40:27, skipping insertion in model container [2020-08-21 14:40:27,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:40:27" (1/1) ... [2020-08-21 14:40:27,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 14:40:27,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 14:40:28,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 14:40:28,391 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 14:40:28,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 14:40:28,684 INFO L208 MainTranslator]: Completed translation [2020-08-21 14:40:28,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:40:28 WrapperNode [2020-08-21 14:40:28,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 14:40:28,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 14:40:28,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 14:40:28,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 14:40:28,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:40:28" (1/1) ... [2020-08-21 14:40:28,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:40:28" (1/1) ... [2020-08-21 14:40:28,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:40:28" (1/1) ... [2020-08-21 14:40:28,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:40:28" (1/1) ... [2020-08-21 14:40:28,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:40:28" (1/1) ... [2020-08-21 14:40:28,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:40:28" (1/1) ... [2020-08-21 14:40:28,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:40:28" (1/1) ... [2020-08-21 14:40:28,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 14:40:28,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 14:40:28,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 14:40:28,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 14:40:28,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:40:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 14:40:28,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 14:40:28,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 14:40:28,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 14:40:28,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-21 14:40:28,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-21 14:40:28,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-21 14:40:28,928 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-21 14:40:28,928 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-21 14:40:28,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 14:40:28,929 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 14:40:28,929 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-21 14:40:28,929 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 14:40:28,929 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 14:40:28,929 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 14:40:28,930 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 14:40:28,930 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 14:40:28,930 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-21 14:40:28,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-21 14:40:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-21 14:40:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-21 14:40:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-21 14:40:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-21 14:40:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-21 14:40:28,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-21 14:40:28,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-21 14:40:28,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-21 14:40:28,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-21 14:40:28,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-21 14:40:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-21 14:40:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-21 14:40:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-21 14:40:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-21 14:40:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-21 14:40:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-21 14:40:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-21 14:40:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-21 14:40:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-21 14:40:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-21 14:40:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-21 14:40:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-21 14:40:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-21 14:40:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-21 14:40:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-21 14:40:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-21 14:40:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-21 14:40:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-21 14:40:28,936 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-21 14:40:28,936 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-21 14:40:28,936 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-21 14:40:28,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 14:40:28,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 14:40:28,937 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-21 14:40:28,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 14:40:28,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 14:40:28,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 14:40:28,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 14:40:28,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 14:40:28,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 14:40:28,938 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-21 14:40:28,938 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-21 14:40:28,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-21 14:40:28,938 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-21 14:40:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-21 14:40:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-21 14:40:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-21 14:40:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-21 14:40:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-21 14:40:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-21 14:40:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-21 14:40:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-21 14:40:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-21 14:40:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-21 14:40:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-21 14:40:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-21 14:40:28,941 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-21 14:40:28,941 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-21 14:40:28,941 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-21 14:40:28,941 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-21 14:40:28,941 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-21 14:40:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-21 14:40:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-21 14:40:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-21 14:40:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-21 14:40:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-21 14:40:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-21 14:40:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-21 14:40:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-21 14:40:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-21 14:40:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-21 14:40:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-21 14:40:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-21 14:40:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 14:40:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 14:40:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 14:40:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-21 14:40:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-21 14:40:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-21 14:40:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 14:40:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 14:40:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 14:40:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-21 14:40:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-21 14:40:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-21 14:40:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-21 14:40:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-21 14:40:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-21 14:40:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-21 14:40:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-21 14:40:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-21 14:40:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-21 14:40:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 14:40:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 14:40:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 14:40:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-21 14:40:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 14:40:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 14:40:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-21 14:40:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-21 14:40:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-21 14:40:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-21 14:40:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-21 14:40:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-21 14:40:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-21 14:40:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-21 14:40:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-21 14:40:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-21 14:40:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-21 14:40:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-21 14:40:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-21 14:40:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-21 14:40:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-21 14:40:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-21 14:40:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-21 14:40:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-21 14:40:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-21 14:40:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-21 14:40:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-21 14:40:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-21 14:40:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-21 14:40:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-21 14:40:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-21 14:40:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-21 14:40:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-21 14:40:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-21 14:40:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-21 14:40:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-21 14:40:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-21 14:40:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-21 14:40:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 14:40:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 14:40:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-21 14:40:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-21 14:40:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 14:40:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 14:40:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 14:40:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 14:40:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 14:40:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 14:40:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 14:40:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 14:40:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 14:40:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 14:40:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 14:40:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 14:40:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 14:40:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 14:40:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 14:40:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 14:40:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-21 14:40:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-21 14:40:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-21 14:40:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-21 14:40:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-21 14:40:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-21 14:40:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-21 14:40:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-21 14:40:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-21 14:40:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-21 14:40:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-21 14:40:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-21 14:40:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-21 14:40:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-21 14:40:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-21 14:40:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-21 14:40:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-21 14:40:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-21 14:40:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-21 14:40:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-21 14:40:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-21 14:40:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-21 14:40:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-21 14:40:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-21 14:40:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-21 14:40:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-21 14:40:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 14:40:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 14:40:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 14:40:30,879 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 14:40:30,879 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 14:40:30,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 02:40:30 BoogieIcfgContainer [2020-08-21 14:40:30,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 14:40:30,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 14:40:30,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 14:40:30,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 14:40:30,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 02:40:27" (1/3) ... [2020-08-21 14:40:30,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ce3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 02:40:30, skipping insertion in model container [2020-08-21 14:40:30,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:40:28" (2/3) ... [2020-08-21 14:40:30,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ce3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 02:40:30, skipping insertion in model container [2020-08-21 14:40:30,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 02:40:30" (3/3) ... [2020-08-21 14:40:30,894 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-21 14:40:30,905 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 14:40:30,914 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 14:40:30,925 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 14:40:30,949 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 14:40:30,949 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 14:40:30,950 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 14:40:30,950 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 14:40:30,950 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 14:40:30,950 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 14:40:30,950 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 14:40:30,950 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 14:40:30,974 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-21 14:40:30,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-21 14:40:30,989 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:40:30,991 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:40:30,991 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:40:30,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:40:30,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-21 14:40:31,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:40:31,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117815594] [2020-08-21 14:40:31,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:40:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:32,981 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 14:40:32,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:40:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:40:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 14:40:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:40:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 14:40:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 14:40:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-21 14:40:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-21 14:40:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:40:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 14:40:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 14:40:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-21 14:40:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 14:40:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-21 14:40:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-21 14:40:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 14:40:33,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117815594] [2020-08-21 14:40:33,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 14:40:33,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-21 14:40:33,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291868012] [2020-08-21 14:40:33,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 14:40:33,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:40:33,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 14:40:33,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 14:40:33,507 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-21 14:40:35,524 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 14:40:36,999 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 14:40:38,261 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 14:40:39,492 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 14:40:45,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:40:45,318 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-21 14:40:45,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 14:40:45,320 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-21 14:40:45,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:40:45,339 INFO L225 Difference]: With dead ends: 573 [2020-08-21 14:40:45,339 INFO L226 Difference]: Without dead ends: 340 [2020-08-21 14:40:45,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-21 14:40:45,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-21 14:40:45,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-21 14:40:45,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-21 14:40:45,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-21 14:40:45,504 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-21 14:40:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:40:45,504 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-21 14:40:45,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 14:40:45,505 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-21 14:40:45,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-21 14:40:45,509 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:40:45,509 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:40:45,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 14:40:45,510 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:40:45,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:40:45,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-21 14:40:45,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:40:45,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255526453] [2020-08-21 14:40:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:40:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:46,760 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 14:40:46,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:40:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:46,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:40:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:46,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 14:40:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:46,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:40:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:46,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 14:40:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:46,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:46,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:46,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 14:40:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:46,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:46,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 14:40:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:46,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:46,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 14:40:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:47,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:47,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:40:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:47,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-21 14:40:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:47,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 14:40:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:47,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 14:40:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:47,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 14:40:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:47,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:47,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-21 14:40:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:47,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-21 14:40:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:47,078 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 14:40:47,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255526453] [2020-08-21 14:40:47,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:40:47,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 14:40:47,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907390844] [2020-08-21 14:40:47,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 14:40:47,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:40:47,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 14:40:47,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 14:40:47,083 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-21 14:40:48,905 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 14:40:50,433 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 14:40:51,653 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 14:40:52,841 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 14:40:57,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:40:57,400 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-21 14:40:57,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 14:40:57,400 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-21 14:40:57,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:40:57,405 INFO L225 Difference]: With dead ends: 509 [2020-08-21 14:40:57,405 INFO L226 Difference]: Without dead ends: 346 [2020-08-21 14:40:57,407 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 [2020-08-21 14:40:57,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-21 14:40:57,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-21 14:40:57,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 14:40:57,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-21 14:40:57,520 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-21 14:40:57,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:40:57,520 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-21 14:40:57,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 14:40:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-21 14:40:57,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-21 14:40:57,524 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:40:57,524 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:40:57,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 14:40:57,524 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:40:57,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:40:57,525 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-21 14:40:57,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:40:57,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602762986] [2020-08-21 14:40:57,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:40:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:58,757 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 14:40:58,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:40:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:58,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:40:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:58,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 14:40:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:58,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:40:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:58,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 14:40:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:58,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:58,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:58,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 14:40:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:58,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:58,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 14:40:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:58,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:59,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 14:40:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:59,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:59,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:40:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:59,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-21 14:40:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:59,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 14:40:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:59,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 14:40:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:59,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-21 14:40:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:59,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:40:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:59,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 14:40:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:59,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 14:40:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:40:59,151 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 14:40:59,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602762986] [2020-08-21 14:40:59,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:40:59,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 14:40:59,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238229351] [2020-08-21 14:40:59,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 14:40:59,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:40:59,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 14:40:59,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 14:40:59,155 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-21 14:41:00,903 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 14:41:02,479 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 14:41:03,581 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 14:41:04,757 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 14:41:09,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:41:09,036 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-21 14:41:09,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 14:41:09,036 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-21 14:41:09,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:41:09,040 INFO L225 Difference]: With dead ends: 509 [2020-08-21 14:41:09,040 INFO L226 Difference]: Without dead ends: 348 [2020-08-21 14:41:09,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 14:41:09,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-21 14:41:09,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-21 14:41:09,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 14:41:09,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-21 14:41:09,140 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-21 14:41:09,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:41:09,141 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-21 14:41:09,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 14:41:09,141 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-21 14:41:09,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-21 14:41:09,143 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:41:09,144 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:41:09,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 14:41:09,144 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:41:09,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:41:09,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-21 14:41:09,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:41:09,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495573739] [2020-08-21 14:41:09,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:41:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,562 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 14:41:10,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:41:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:41:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 14:41:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:41:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 14:41:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 14:41:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 14:41:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-21 14:41:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:41:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 14:41:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 14:41:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 14:41:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 14:41:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-21 14:41:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-21 14:41:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:10,792 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 14:41:10,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495573739] [2020-08-21 14:41:10,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:41:10,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 14:41:10,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140197415] [2020-08-21 14:41:10,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 14:41:10,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:41:10,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 14:41:10,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 14:41:10,794 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-21 14:41:12,967 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 14:41:17,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:41:17,123 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-21 14:41:17,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 14:41:17,125 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-21 14:41:17,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:41:17,128 INFO L225 Difference]: With dead ends: 463 [2020-08-21 14:41:17,128 INFO L226 Difference]: Without dead ends: 347 [2020-08-21 14:41:17,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-21 14:41:17,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-21 14:41:17,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-21 14:41:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-21 14:41:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-21 14:41:17,218 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-21 14:41:17,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:41:17,218 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-21 14:41:17,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 14:41:17,219 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-21 14:41:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-21 14:41:17,221 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:41:17,221 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:41:17,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 14:41:17,222 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:41:17,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:41:17,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-21 14:41:17,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:41:17,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991692220] [2020-08-21 14:41:17,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:41:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,387 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 14:41:18,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:41:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:41:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 14:41:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:41:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 14:41:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 14:41:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 14:41:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-21 14:41:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:41:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 14:41:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 14:41:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 14:41:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 14:41:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 14:41:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-21 14:41:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:18,611 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 14:41:18,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991692220] [2020-08-21 14:41:18,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 14:41:18,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 14:41:18,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741866472] [2020-08-21 14:41:18,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 14:41:18,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:41:18,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 14:41:18,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-21 14:41:18,614 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-21 14:41:20,801 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 14:41:21,932 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 14:41:25,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:41:25,849 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-21 14:41:25,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 14:41:25,849 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-21 14:41:25,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:41:25,853 INFO L225 Difference]: With dead ends: 495 [2020-08-21 14:41:25,853 INFO L226 Difference]: Without dead ends: 379 [2020-08-21 14:41:25,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-21 14:41:25,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-21 14:41:25,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-21 14:41:25,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-21 14:41:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-21 14:41:25,945 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-21 14:41:25,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:41:25,945 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-21 14:41:25,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 14:41:25,946 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-21 14:41:25,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-21 14:41:25,948 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:41:25,948 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:41:25,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 14:41:25,948 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:41:25,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:41:25,949 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-21 14:41:25,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:41:25,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204191617] [2020-08-21 14:41:25,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:41:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,292 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 14:41:27,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:41:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:41:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 14:41:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 14:41:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 14:41:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 14:41:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 14:41:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 14:41:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:41:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 14:41:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-21 14:41:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 14:41:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-21 14:41:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:41:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 14:41:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-21 14:41:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:41:27,546 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 14:41:27,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204191617] [2020-08-21 14:41:27,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:41:27,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 14:41:27,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519978612] [2020-08-21 14:41:27,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 14:41:27,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:41:27,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 14:41:27,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-21 14:41:27,549 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states. [2020-08-21 14:41:29,036 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 502