/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 16:01:36,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 16:01:36,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 16:01:36,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 16:01:36,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 16:01:36,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 16:01:36,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 16:01:36,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 16:01:36,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 16:01:36,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 16:01:36,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 16:01:36,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 16:01:36,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 16:01:36,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 16:01:36,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 16:01:36,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 16:01:36,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 16:01:36,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 16:01:36,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 16:01:36,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 16:01:36,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 16:01:36,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 16:01:36,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 16:01:36,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 16:01:36,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 16:01:36,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 16:01:36,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 16:01:36,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 16:01:36,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 16:01:36,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 16:01:36,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 16:01:36,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 16:01:36,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 16:01:36,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 16:01:36,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 16:01:36,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 16:01:36,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 16:01:36,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 16:01:36,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 16:01:36,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 16:01:36,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 16:01:36,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 16:01:37,035 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 16:01:37,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 16:01:37,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 16:01:37,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 16:01:37,039 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 16:01:37,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 16:01:37,039 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 16:01:37,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 16:01:37,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 16:01:37,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 16:01:37,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 16:01:37,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 16:01:37,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 16:01:37,040 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 16:01:37,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 16:01:37,042 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 16:01:37,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 16:01:37,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 16:01:37,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 16:01:37,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 16:01:37,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 16:01:37,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 16:01:37,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 16:01:37,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 16:01:37,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 16:01:37,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 16:01:37,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 16:01:37,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 16:01:37,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 16:01:37,045 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 [2020-08-18 16:01:37,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 16:01:37,384 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 16:01:37,388 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 16:01:37,390 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 16:01:37,390 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 16:01:37,391 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 16:01:37,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a64137f8/0f0bb6f12d424c31bf3bde745cfbd26c/FLAGeb4fcef2a [2020-08-18 16:01:38,028 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 16:01:38,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 16:01:38,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a64137f8/0f0bb6f12d424c31bf3bde745cfbd26c/FLAGeb4fcef2a [2020-08-18 16:01:38,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a64137f8/0f0bb6f12d424c31bf3bde745cfbd26c [2020-08-18 16:01:38,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 16:01:38,269 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 16:01:38,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 16:01:38,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 16:01:38,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 16:01:38,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 04:01:38" (1/1) ... [2020-08-18 16:01:38,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4288bc19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:01:38, skipping insertion in model container [2020-08-18 16:01:38,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 04:01:38" (1/1) ... [2020-08-18 16:01:38,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 16:01:38,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 16:01:39,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 16:01:39,100 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 16:01:39,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 16:01:39,351 INFO L208 MainTranslator]: Completed translation [2020-08-18 16:01:39,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:01:39 WrapperNode [2020-08-18 16:01:39,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 16:01:39,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 16:01:39,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 16:01:39,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 16:01:39,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:01:39" (1/1) ... [2020-08-18 16:01:39,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:01:39" (1/1) ... [2020-08-18 16:01:39,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:01:39" (1/1) ... [2020-08-18 16:01:39,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:01:39" (1/1) ... [2020-08-18 16:01:39,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:01:39" (1/1) ... [2020-08-18 16:01:39,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:01:39" (1/1) ... [2020-08-18 16:01:39,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:01:39" (1/1) ... [2020-08-18 16:01:39,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 16:01:39,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 16:01:39,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 16:01:39,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 16:01:39,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:01:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 16:01:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 16:01:39,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 16:01:39,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 16:01:39,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-18 16:01:39,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-18 16:01:39,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-18 16:01:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-18 16:01:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-18 16:01:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 16:01:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 16:01:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-18 16:01:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 16:01:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 16:01:39,632 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 16:01:39,632 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 16:01:39,633 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 16:01:39,633 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-18 16:01:39,633 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-18 16:01:39,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-18 16:01:39,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-18 16:01:39,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-18 16:01:39,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-18 16:01:39,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-18 16:01:39,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-18 16:01:39,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-18 16:01:39,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-18 16:01:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-18 16:01:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-18 16:01:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-18 16:01:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-18 16:01:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-18 16:01:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-18 16:01:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-18 16:01:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-18 16:01:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-18 16:01:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-18 16:01:39,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-18 16:01:39,640 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-18 16:01:39,640 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-18 16:01:39,640 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-18 16:01:39,640 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-18 16:01:39,640 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-18 16:01:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-18 16:01:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-18 16:01:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-18 16:01:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-18 16:01:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-18 16:01:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-18 16:01:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-18 16:01:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 16:01:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 16:01:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-18 16:01:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 16:01:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 16:01:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 16:01:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 16:01:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 16:01:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 16:01:39,644 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-18 16:01:39,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-18 16:01:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-18 16:01:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-18 16:01:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-18 16:01:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-18 16:01:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-18 16:01:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-18 16:01:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-18 16:01:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-18 16:01:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-18 16:01:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-18 16:01:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-18 16:01:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-18 16:01:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-18 16:01:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-18 16:01:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-18 16:01:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-18 16:01:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-18 16:01:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-18 16:01:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-18 16:01:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-18 16:01:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-18 16:01:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-18 16:01:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-18 16:01:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-18 16:01:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-18 16:01:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-18 16:01:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-18 16:01:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-18 16:01:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-18 16:01:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-18 16:01:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-18 16:01:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 16:01:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 16:01:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 16:01:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-18 16:01:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-18 16:01:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-18 16:01:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 16:01:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 16:01:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 16:01:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-18 16:01:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-18 16:01:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-18 16:01:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-18 16:01:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-18 16:01:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-18 16:01:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-18 16:01:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-18 16:01:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-18 16:01:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-18 16:01:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 16:01:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 16:01:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 16:01:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-18 16:01:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 16:01:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 16:01:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-18 16:01:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-18 16:01:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-18 16:01:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-18 16:01:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-18 16:01:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-18 16:01:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-18 16:01:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-18 16:01:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-18 16:01:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-18 16:01:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-18 16:01:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-18 16:01:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-18 16:01:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-18 16:01:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-18 16:01:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-18 16:01:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-18 16:01:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-18 16:01:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-18 16:01:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-18 16:01:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-18 16:01:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-18 16:01:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-18 16:01:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-18 16:01:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-18 16:01:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-18 16:01:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-18 16:01:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-18 16:01:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-18 16:01:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-18 16:01:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-18 16:01:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-18 16:01:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 16:01:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 16:01:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-18 16:01:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-18 16:01:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 16:01:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 16:01:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 16:01:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 16:01:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 16:01:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 16:01:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 16:01:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 16:01:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 16:01:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 16:01:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 16:01:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 16:01:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 16:01:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 16:01:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 16:01:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 16:01:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-18 16:01:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-18 16:01:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-18 16:01:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-18 16:01:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-18 16:01:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-18 16:01:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-18 16:01:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-18 16:01:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-18 16:01:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-18 16:01:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-18 16:01:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-18 16:01:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-18 16:01:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-18 16:01:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-18 16:01:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-18 16:01:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-18 16:01:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-18 16:01:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-18 16:01:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-18 16:01:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-18 16:01:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-18 16:01:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-18 16:01:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-18 16:01:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-18 16:01:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-18 16:01:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 16:01:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 16:01:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 16:01:41,664 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 16:01:41,664 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 16:01:41,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 04:01:41 BoogieIcfgContainer [2020-08-18 16:01:41,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 16:01:41,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 16:01:41,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 16:01:41,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 16:01:41,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 04:01:38" (1/3) ... [2020-08-18 16:01:41,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b48de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 04:01:41, skipping insertion in model container [2020-08-18 16:01:41,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:01:39" (2/3) ... [2020-08-18 16:01:41,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b48de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 04:01:41, skipping insertion in model container [2020-08-18 16:01:41,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 04:01:41" (3/3) ... [2020-08-18 16:01:41,679 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-18 16:01:41,691 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 16:01:41,700 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 16:01:41,717 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 16:01:41,744 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 16:01:41,745 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 16:01:41,745 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 16:01:41,745 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 16:01:41,745 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 16:01:41,745 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 16:01:41,745 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 16:01:41,746 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 16:01:41,773 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-18 16:01:41,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-18 16:01:41,796 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:01:41,798 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:01:41,798 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:01:41,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:01:41,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-18 16:01:41,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:01:41,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454072596] [2020-08-18 16:01:41,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:01:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:43,783 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 16:01:43,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:01:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:43,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:01:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:43,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:01:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:43,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:01:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:43,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:01:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:43,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:01:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:43,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:01:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:43,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 16:01:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:01:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 16:01:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:01:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-18 16:01:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:01:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:01:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-18 16:01:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-18 16:01:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-18 16:01:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-18 16:01:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:01:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-18 16:01:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-18 16:01:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:44,330 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 16:01:44,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454072596] [2020-08-18 16:01:44,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 16:01:44,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-18 16:01:44,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750929155] [2020-08-18 16:01:44,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 16:01:44,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:01:44,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 16:01:44,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 16:01:44,354 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-18 16:01:46,440 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 16:01:47,911 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 16:01:49,164 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 16:01:50,413 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 16:01:56,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:01:56,427 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-18 16:01:56,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-18 16:01:56,429 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-18 16:01:56,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:01:56,448 INFO L225 Difference]: With dead ends: 573 [2020-08-18 16:01:56,448 INFO L226 Difference]: Without dead ends: 340 [2020-08-18 16:01:56,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-18 16:01:56,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-18 16:01:56,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-18 16:01:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-18 16:01:56,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-18 16:01:56,605 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-18 16:01:56,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:01:56,606 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-18 16:01:56,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 16:01:56,606 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-18 16:01:56,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-18 16:01:56,610 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:01:56,610 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:01:56,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 16:01:56,611 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:01:56,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:01:56,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-18 16:01:56,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:01:56,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509238878] [2020-08-18 16:01:56,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:01:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:57,908 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 16:01:57,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:01:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:57,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:01:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:57,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:01:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:57,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:01:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:01:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:01:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:01:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 16:01:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:01:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 16:01:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:01:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 16:01:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:01:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:01:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-18 16:01:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-18 16:01:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 16:01:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 16:01:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:01:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-18 16:01:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-18 16:01:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:01:58,276 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 16:01:58,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509238878] [2020-08-18 16:01:58,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:01:58,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 16:01:58,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072546362] [2020-08-18 16:01:58,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 16:01:58,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:01:58,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 16:01:58,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 16:01:58,280 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-18 16:02:00,001 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 16:02:01,564 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 16:02:02,792 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 16:02:03,975 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 16:02:08,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:02:08,602 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-18 16:02:08,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 16:02:08,603 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-18 16:02:08,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:02:08,609 INFO L225 Difference]: With dead ends: 509 [2020-08-18 16:02:08,609 INFO L226 Difference]: Without dead ends: 346 [2020-08-18 16:02:08,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 16:02:08,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-18 16:02:08,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-18 16:02:08,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 16:02:08,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-18 16:02:08,753 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-18 16:02:08,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:02:08,753 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-18 16:02:08,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 16:02:08,754 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-18 16:02:08,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-18 16:02:08,757 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:02:08,757 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:02:08,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 16:02:08,757 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:02:08,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:02:08,758 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-18 16:02:08,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:02:08,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463111273] [2020-08-18 16:02:08,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:02:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:09,996 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 16:02:09,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:02:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:02:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:02:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:02:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:02:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 16:02:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 16:02:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 16:02:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:02:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-18 16:02:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 16:02:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 16:02:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-18 16:02:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 16:02:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 16:02:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:10,378 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 16:02:10,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463111273] [2020-08-18 16:02:10,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:02:10,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 16:02:10,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523044587] [2020-08-18 16:02:10,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 16:02:10,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:02:10,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 16:02:10,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 16:02:10,381 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-18 16:02:12,486 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 16:02:14,048 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 16:02:15,193 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 16:02:16,388 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 16:02:20,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:02:20,726 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-18 16:02:20,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 16:02:20,727 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-18 16:02:20,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:02:20,731 INFO L225 Difference]: With dead ends: 509 [2020-08-18 16:02:20,731 INFO L226 Difference]: Without dead ends: 348 [2020-08-18 16:02:20,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 16:02:20,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-18 16:02:20,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-18 16:02:20,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 16:02:20,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-18 16:02:20,820 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-18 16:02:20,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:02:20,820 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-18 16:02:20,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 16:02:20,820 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-18 16:02:20,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-18 16:02:20,823 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:02:20,823 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:02:20,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 16:02:20,823 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:02:20,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:02:20,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-18 16:02:20,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:02:20,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255609006] [2020-08-18 16:02:20,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:02:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,304 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 16:02:22,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:02:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:02:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:02:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:02:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:02:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 16:02:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 16:02:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-18 16:02:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:02:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 16:02:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 16:02:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 16:02:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 16:02:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-18 16:02:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-18 16:02:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 16:02:22,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255609006] [2020-08-18 16:02:22,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:02:22,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 16:02:22,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762025723] [2020-08-18 16:02:22,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 16:02:22,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:02:22,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 16:02:22,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-18 16:02:22,549 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-18 16:02:24,673 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 16:02:28,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:02:28,777 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-18 16:02:28,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 16:02:28,778 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-18 16:02:28,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:02:28,782 INFO L225 Difference]: With dead ends: 463 [2020-08-18 16:02:28,782 INFO L226 Difference]: Without dead ends: 347 [2020-08-18 16:02:28,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-18 16:02:28,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-18 16:02:28,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-18 16:02:28,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-18 16:02:28,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-18 16:02:28,893 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-18 16:02:28,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:02:28,893 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-18 16:02:28,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 16:02:28,893 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-18 16:02:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-18 16:02:28,896 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:02:28,896 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:02:28,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 16:02:28,896 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:02:28,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:02:28,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-18 16:02:28,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:02:28,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299871250] [2020-08-18 16:02:28,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:02:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,154 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 16:02:30,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:02:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:02:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:02:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:02:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:02:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 16:02:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 16:02:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 16:02:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:02:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 16:02:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 16:02:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-18 16:02:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-18 16:02:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-18 16:02:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-18 16:02:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:30,431 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 16:02:30,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299871250] [2020-08-18 16:02:30,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 16:02:30,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 16:02:30,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635481939] [2020-08-18 16:02:30,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 16:02:30,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:02:30,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 16:02:30,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-18 16:02:30,435 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-18 16:02:32,677 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 16:02:33,814 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 16:02:37,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:02:37,761 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-18 16:02:37,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 16:02:37,762 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-18 16:02:37,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:02:37,765 INFO L225 Difference]: With dead ends: 495 [2020-08-18 16:02:37,766 INFO L226 Difference]: Without dead ends: 379 [2020-08-18 16:02:37,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-18 16:02:37,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-18 16:02:37,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-18 16:02:37,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-18 16:02:37,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-18 16:02:37,863 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-18 16:02:37,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:02:37,863 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-18 16:02:37,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 16:02:37,863 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-18 16:02:37,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-18 16:02:37,866 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:02:37,866 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:02:37,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 16:02:37,866 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:02:37,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:02:37,867 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-18 16:02:37,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:02:37,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317327423] [2020-08-18 16:02:37,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:02:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,097 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 16:02:39,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:02:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:02:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:02:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:02:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:02:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 16:02:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 16:02:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 16:02:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:02:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 16:02:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-18 16:02:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-18 16:02:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-18 16:02:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:02:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 16:02:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-18 16:02:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:02:39,341 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 16:02:39,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317327423] [2020-08-18 16:02:39,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:02:39,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 16:02:39,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435954954] [2020-08-18 16:02:39,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 16:02:39,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:02:39,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 16:02:39,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-18 16:02:39,346 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states.