/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:25:33,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:25:33,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:25:33,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:25:33,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:25:33,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:25:33,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:25:33,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:25:33,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:25:33,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:25:33,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:25:33,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:25:33,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:25:33,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:25:33,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:25:33,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:25:33,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:25:33,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:25:33,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:25:33,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:25:33,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:25:33,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:25:33,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:25:33,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:25:33,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:25:33,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:25:33,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:25:33,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:25:33,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:25:33,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:25:33,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:25:33,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:25:33,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:25:33,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:25:33,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:25:33,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:25:33,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:25:33,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:25:33,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:25:33,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:25:33,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:25:33,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:25:33,292 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:25:33,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:25:33,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:25:33,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:25:33,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:25:33,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:25:33,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:25:33,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:25:33,295 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:25:33,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:25:33,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:25:33,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:25:33,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:25:33,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:25:33,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:25:33,296 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:25:33,296 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:25:33,296 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:25:33,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:25:33,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:25:33,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:25:33,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:25:33,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:25:33,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:25:33,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:25:33,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:25:33,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:25:33,298 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:25:33,298 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:25:33,298 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:25:33,298 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:25:33,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:25:33,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:25:33,298 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:25:33,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:25:33,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:25:33,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:25:33,529 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:25:33,530 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:25:33,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product17.cil.c [2022-01-10 06:25:33,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18e0f20d/f3521f2127044e0593ac2a3280b66df3/FLAG02b521ba0 [2022-01-10 06:25:34,147 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:25:34,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product17.cil.c [2022-01-10 06:25:34,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18e0f20d/f3521f2127044e0593ac2a3280b66df3/FLAG02b521ba0 [2022-01-10 06:25:34,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18e0f20d/f3521f2127044e0593ac2a3280b66df3 [2022-01-10 06:25:34,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:25:34,633 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:25:34,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:25:34,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:25:34,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:25:34,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:25:34" (1/1) ... [2022-01-10 06:25:34,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2558c220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:34, skipping insertion in model container [2022-01-10 06:25:34,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:25:34" (1/1) ... [2022-01-10 06:25:34,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:25:34,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:25:35,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product17.cil.c[45969,45982] [2022-01-10 06:25:35,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:25:35,092 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:25:35,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:25:35,147 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product17.cil.c[45969,45982] [2022-01-10 06:25:35,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:25:35,180 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:25:35,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product17.cil.c[45969,45982] [2022-01-10 06:25:35,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:25:35,333 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:25:35,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:35 WrapperNode [2022-01-10 06:25:35,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:25:35,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:25:35,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:25:35,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:25:35,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:35" (1/1) ... [2022-01-10 06:25:35,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:35" (1/1) ... [2022-01-10 06:25:35,420 INFO L137 Inliner]: procedures = 129, calls = 208, calls flagged for inlining = 53, calls inlined = 46, statements flattened = 862 [2022-01-10 06:25:35,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:25:35,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:25:35,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:25:35,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:25:35,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:35" (1/1) ... [2022-01-10 06:25:35,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:35" (1/1) ... [2022-01-10 06:25:35,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:35" (1/1) ... [2022-01-10 06:25:35,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:35" (1/1) ... [2022-01-10 06:25:35,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:35" (1/1) ... [2022-01-10 06:25:35,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:35" (1/1) ... [2022-01-10 06:25:35,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:35" (1/1) ... [2022-01-10 06:25:35,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:25:35,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:25:35,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:25:35,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:25:35,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:35" (1/1) ... [2022-01-10 06:25:35,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:25:35,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:25:35,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 06:25:35,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 06:25:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-01-10 06:25:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-01-10 06:25:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-01-10 06:25:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-01-10 06:25:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-01-10 06:25:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-01-10 06:25:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2022-01-10 06:25:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2022-01-10 06:25:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-01-10 06:25:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-01-10 06:25:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-01-10 06:25:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-01-10 06:25:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-01-10 06:25:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-01-10 06:25:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-01-10 06:25:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-01-10 06:25:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-01-10 06:25:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-01-10 06:25:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-01-10 06:25:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-01-10 06:25:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 06:25:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-01-10 06:25:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-01-10 06:25:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-01-10 06:25:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-01-10 06:25:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:25:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-01-10 06:25:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-01-10 06:25:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-01-10 06:25:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-01-10 06:25:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-01-10 06:25:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-01-10 06:25:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-01-10 06:25:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-01-10 06:25:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-01-10 06:25:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-01-10 06:25:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:25:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-01-10 06:25:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-01-10 06:25:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-01-10 06:25:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-01-10 06:25:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-01-10 06:25:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-01-10 06:25:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-01-10 06:25:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-01-10 06:25:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-01-10 06:25:35,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-01-10 06:25:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:25:35,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:25:35,770 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:25:35,771 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:25:36,436 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:25:36,448 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:25:36,449 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 06:25:36,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:25:36 BoogieIcfgContainer [2022-01-10 06:25:36,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:25:36,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:25:36,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:25:36,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:25:36,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:25:34" (1/3) ... [2022-01-10 06:25:36,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e156b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:25:36, skipping insertion in model container [2022-01-10 06:25:36,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:25:35" (2/3) ... [2022-01-10 06:25:36,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e156b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:25:36, skipping insertion in model container [2022-01-10 06:25:36,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:25:36" (3/3) ... [2022-01-10 06:25:36,457 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec4_product17.cil.c [2022-01-10 06:25:36,461 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:25:36,461 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:25:36,504 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:25:36,509 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 06:25:36,510 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:25:36,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 352 states, 278 states have (on average 1.5827338129496402) internal successors, (440), 281 states have internal predecessors, (440), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2022-01-10 06:25:36,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 06:25:36,559 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:36,560 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-01-10 06:25:36,560 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:36,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:36,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1657855527, now seen corresponding path program 1 times [2022-01-10 06:25:36,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:36,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957804938] [2022-01-10 06:25:36,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:36,578 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:36,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:36,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:36,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 06:25:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:36,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:25:36,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-01-10 06:25:37,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:37,093 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:37,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957804938] [2022-01-10 06:25:37,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957804938] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:37,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:37,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:25:37,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283776152] [2022-01-10 06:25:37,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:37,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:25:37,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:37,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:25:37,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:25:37,141 INFO L87 Difference]: Start difference. First operand has 352 states, 278 states have (on average 1.5827338129496402) internal successors, (440), 281 states have internal predecessors, (440), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:37,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:37,224 INFO L93 Difference]: Finished difference Result 516 states and 778 transitions. [2022-01-10 06:25:37,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:25:37,225 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2022-01-10 06:25:37,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:37,236 INFO L225 Difference]: With dead ends: 516 [2022-01-10 06:25:37,236 INFO L226 Difference]: Without dead ends: 345 [2022-01-10 06:25:37,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:25:37,242 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:37,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:37,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-01-10 06:25:37,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2022-01-10 06:25:37,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 272 states have (on average 1.5772058823529411) internal successors, (429), 274 states have internal predecessors, (429), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-01-10 06:25:37,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 528 transitions. [2022-01-10 06:25:37,310 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 528 transitions. Word has length 101 [2022-01-10 06:25:37,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:37,311 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 528 transitions. [2022-01-10 06:25:37,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:37,312 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 528 transitions. [2022-01-10 06:25:37,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 06:25:37,315 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:37,316 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-01-10 06:25:37,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-01-10 06:25:37,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:37,526 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:37,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:37,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1378191731, now seen corresponding path program 1 times [2022-01-10 06:25:37,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:37,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25540639] [2022-01-10 06:25:37,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:37,528 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:37,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:37,529 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:37,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:25:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:37,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:25:37,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:37,911 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-10 06:25:37,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:37,911 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:37,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25540639] [2022-01-10 06:25:37,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25540639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:37,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:37,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:25:37,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379666568] [2022-01-10 06:25:37,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:37,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:25:37,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:37,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:25:37,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:25:37,914 INFO L87 Difference]: Start difference. First operand 345 states and 528 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:38,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:38,003 INFO L93 Difference]: Finished difference Result 681 states and 1046 transitions. [2022-01-10 06:25:38,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:25:38,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2022-01-10 06:25:38,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:38,007 INFO L225 Difference]: With dead ends: 681 [2022-01-10 06:25:38,007 INFO L226 Difference]: Without dead ends: 347 [2022-01-10 06:25:38,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:25:38,010 INFO L933 BasicCegarLoop]: 519 mSDtfsCounter, 144 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:38,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 1910 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:38,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-01-10 06:25:38,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2022-01-10 06:25:38,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 273 states have (on average 1.575091575091575) internal successors, (430), 276 states have internal predecessors, (430), 50 states have call successors, (50), 22 states have call predecessors, (50), 23 states have return successors, (51), 48 states have call predecessors, (51), 49 states have call successors, (51) [2022-01-10 06:25:38,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 531 transitions. [2022-01-10 06:25:38,033 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 531 transitions. Word has length 102 [2022-01-10 06:25:38,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:38,033 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 531 transitions. [2022-01-10 06:25:38,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:38,033 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 531 transitions. [2022-01-10 06:25:38,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-10 06:25:38,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:38,035 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-01-10 06:25:38,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-01-10 06:25:38,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:38,244 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:38,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:38,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1029457713, now seen corresponding path program 1 times [2022-01-10 06:25:38,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:38,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11910489] [2022-01-10 06:25:38,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:38,245 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:38,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:38,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:38,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 06:25:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:38,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:25:38,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-10 06:25:38,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:38,626 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:38,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11910489] [2022-01-10 06:25:38,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11910489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:38,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:38,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:25:38,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258407325] [2022-01-10 06:25:38,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:38,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:25:38,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:38,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:25:38,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:25:38,628 INFO L87 Difference]: Start difference. First operand 347 states and 531 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:38,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:38,687 INFO L93 Difference]: Finished difference Result 683 states and 1050 transitions. [2022-01-10 06:25:38,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:25:38,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2022-01-10 06:25:38,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:38,690 INFO L225 Difference]: With dead ends: 683 [2022-01-10 06:25:38,690 INFO L226 Difference]: Without dead ends: 349 [2022-01-10 06:25:38,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:25:38,693 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 143 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1899 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:38,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 1899 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:38,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-01-10 06:25:38,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2022-01-10 06:25:38,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 274 states have (on average 1.572992700729927) internal successors, (431), 278 states have internal predecessors, (431), 50 states have call successors, (50), 22 states have call predecessors, (50), 24 states have return successors, (55), 48 states have call predecessors, (55), 49 states have call successors, (55) [2022-01-10 06:25:38,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 536 transitions. [2022-01-10 06:25:38,713 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 536 transitions. Word has length 103 [2022-01-10 06:25:38,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:38,713 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 536 transitions. [2022-01-10 06:25:38,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:38,714 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 536 transitions. [2022-01-10 06:25:38,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 06:25:38,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:38,715 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:25:38,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:38,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:38,928 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:38,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:38,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1487809326, now seen corresponding path program 1 times [2022-01-10 06:25:38,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:38,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497099567] [2022-01-10 06:25:38,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:38,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:38,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:38,937 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:38,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 06:25:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:39,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:25:39,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:39,281 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-10 06:25:39,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:39,281 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:39,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497099567] [2022-01-10 06:25:39,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497099567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:39,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:39,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:25:39,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118166878] [2022-01-10 06:25:39,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:39,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:25:39,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:39,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:25:39,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:25:39,293 INFO L87 Difference]: Start difference. First operand 349 states and 536 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:39,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:39,353 INFO L93 Difference]: Finished difference Result 675 states and 1040 transitions. [2022-01-10 06:25:39,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:25:39,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2022-01-10 06:25:39,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:39,357 INFO L225 Difference]: With dead ends: 675 [2022-01-10 06:25:39,357 INFO L226 Difference]: Without dead ends: 349 [2022-01-10 06:25:39,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:25:39,364 INFO L933 BasicCegarLoop]: 519 mSDtfsCounter, 142 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:39,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 1913 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:39,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-01-10 06:25:39,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2022-01-10 06:25:39,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 274 states have (on average 1.572992700729927) internal successors, (431), 278 states have internal predecessors, (431), 50 states have call successors, (50), 22 states have call predecessors, (50), 24 states have return successors, (54), 48 states have call predecessors, (54), 49 states have call successors, (54) [2022-01-10 06:25:39,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 535 transitions. [2022-01-10 06:25:39,386 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 535 transitions. Word has length 104 [2022-01-10 06:25:39,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:39,387 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 535 transitions. [2022-01-10 06:25:39,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:39,396 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 535 transitions. [2022-01-10 06:25:39,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 06:25:39,398 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:39,398 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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] [2022-01-10 06:25:39,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-01-10 06:25:39,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:39,613 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:39,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:39,613 INFO L85 PathProgramCache]: Analyzing trace with hash 613225808, now seen corresponding path program 2 times [2022-01-10 06:25:39,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:39,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900966079] [2022-01-10 06:25:39,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:25:39,614 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:39,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:39,615 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:39,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 06:25:39,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-10 06:25:39,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:25:39,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:25:39,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-10 06:25:39,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:39,933 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:39,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900966079] [2022-01-10 06:25:39,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900966079] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:39,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:39,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 06:25:39,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444970615] [2022-01-10 06:25:39,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:39,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 06:25:39,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:39,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 06:25:39,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:25:39,934 INFO L87 Difference]: Start difference. First operand 349 states and 535 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:40,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:40,360 INFO L93 Difference]: Finished difference Result 715 states and 1105 transitions. [2022-01-10 06:25:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 06:25:40,361 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 105 [2022-01-10 06:25:40,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:40,365 INFO L225 Difference]: With dead ends: 715 [2022-01-10 06:25:40,365 INFO L226 Difference]: Without dead ends: 713 [2022-01-10 06:25:40,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-10 06:25:40,366 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 507 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 3929 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:40,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [508 Valid, 3929 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 06:25:40,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2022-01-10 06:25:40,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 673. [2022-01-10 06:25:40,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 532 states have (on average 1.5845864661654134) internal successors, (843), 537 states have internal predecessors, (843), 94 states have call successors, (94), 43 states have call predecessors, (94), 46 states have return successors, (103), 92 states have call predecessors, (103), 92 states have call successors, (103) [2022-01-10 06:25:40,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1040 transitions. [2022-01-10 06:25:40,393 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1040 transitions. Word has length 105 [2022-01-10 06:25:40,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:40,393 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 1040 transitions. [2022-01-10 06:25:40,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:40,393 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1040 transitions. [2022-01-10 06:25:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 06:25:40,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:40,397 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:25:40,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:40,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:40,606 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:40,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:40,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1683556443, now seen corresponding path program 1 times [2022-01-10 06:25:40,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:40,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693987059] [2022-01-10 06:25:40,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:40,608 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:40,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:40,609 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:40,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 06:25:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:40,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:25:40,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:40,943 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-10 06:25:40,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:40,943 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:40,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693987059] [2022-01-10 06:25:40,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693987059] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:40,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:40,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:25:40,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756224029] [2022-01-10 06:25:40,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:40,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:25:40,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:40,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:25:40,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:25:40,945 INFO L87 Difference]: Start difference. First operand 673 states and 1040 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:41,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:41,003 INFO L93 Difference]: Finished difference Result 1325 states and 2053 transitions. [2022-01-10 06:25:41,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:25:41,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 106 [2022-01-10 06:25:41,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:41,006 INFO L225 Difference]: With dead ends: 1325 [2022-01-10 06:25:41,006 INFO L226 Difference]: Without dead ends: 675 [2022-01-10 06:25:41,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:25:41,008 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 140 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:41,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1915 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:41,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-01-10 06:25:41,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2022-01-10 06:25:41,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 533 states have (on average 1.5834896810506567) internal successors, (844), 539 states have internal predecessors, (844), 94 states have call successors, (94), 43 states have call predecessors, (94), 47 states have return successors, (105), 92 states have call predecessors, (105), 92 states have call successors, (105) [2022-01-10 06:25:41,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 1043 transitions. [2022-01-10 06:25:41,036 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 1043 transitions. Word has length 106 [2022-01-10 06:25:41,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:41,036 INFO L470 AbstractCegarLoop]: Abstraction has 675 states and 1043 transitions. [2022-01-10 06:25:41,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:41,039 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 1043 transitions. [2022-01-10 06:25:41,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 06:25:41,043 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:41,043 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-10 06:25:41,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:41,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:41,254 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:41,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:41,254 INFO L85 PathProgramCache]: Analyzing trace with hash -274685538, now seen corresponding path program 1 times [2022-01-10 06:25:41,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:41,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217172618] [2022-01-10 06:25:41,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:41,255 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:41,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:41,256 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:41,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 06:25:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:41,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:25:41,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:41,589 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-10 06:25:41,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:41,589 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:41,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217172618] [2022-01-10 06:25:41,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217172618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:41,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:41,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:25:41,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508744431] [2022-01-10 06:25:41,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:41,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:25:41,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:41,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:25:41,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:25:41,591 INFO L87 Difference]: Start difference. First operand 675 states and 1043 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:41,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:41,647 INFO L93 Difference]: Finished difference Result 997 states and 1541 transitions. [2022-01-10 06:25:41,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:25:41,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2022-01-10 06:25:41,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:41,649 INFO L225 Difference]: With dead ends: 997 [2022-01-10 06:25:41,649 INFO L226 Difference]: Without dead ends: 351 [2022-01-10 06:25:41,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:25:41,651 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 141 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:41,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 1902 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:41,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-01-10 06:25:41,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2022-01-10 06:25:41,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 275 states have (on average 1.5709090909090908) internal successors, (432), 280 states have internal predecessors, (432), 50 states have call successors, (50), 22 states have call predecessors, (50), 25 states have return successors, (55), 48 states have call predecessors, (55), 49 states have call successors, (55) [2022-01-10 06:25:41,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 537 transitions. [2022-01-10 06:25:41,663 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 537 transitions. Word has length 107 [2022-01-10 06:25:41,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:41,664 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 537 transitions. [2022-01-10 06:25:41,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:41,664 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 537 transitions. [2022-01-10 06:25:41,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 06:25:41,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:41,665 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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] [2022-01-10 06:25:41,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:41,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:41,876 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:41,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:41,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1528130824, now seen corresponding path program 1 times [2022-01-10 06:25:41,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:41,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156894752] [2022-01-10 06:25:41,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:41,881 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:41,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:41,882 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:41,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 06:25:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:42,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:25:42,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-10 06:25:42,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:42,252 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:42,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156894752] [2022-01-10 06:25:42,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156894752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:42,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:42,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:25:42,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289754321] [2022-01-10 06:25:42,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:42,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:25:42,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:42,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:25:42,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:25:42,254 INFO L87 Difference]: Start difference. First operand 351 states and 537 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:42,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:42,327 INFO L93 Difference]: Finished difference Result 677 states and 1043 transitions. [2022-01-10 06:25:42,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:25:42,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2022-01-10 06:25:42,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:42,330 INFO L225 Difference]: With dead ends: 677 [2022-01-10 06:25:42,330 INFO L226 Difference]: Without dead ends: 353 [2022-01-10 06:25:42,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:25:42,331 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 139 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:42,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 1904 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:25:42,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-01-10 06:25:42,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2022-01-10 06:25:42,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 276 states have (on average 1.568840579710145) internal successors, (433), 282 states have internal predecessors, (433), 50 states have call successors, (50), 22 states have call predecessors, (50), 26 states have return successors, (59), 48 states have call predecessors, (59), 49 states have call successors, (59) [2022-01-10 06:25:42,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 542 transitions. [2022-01-10 06:25:42,346 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 542 transitions. Word has length 107 [2022-01-10 06:25:42,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:42,347 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 542 transitions. [2022-01-10 06:25:42,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-01-10 06:25:42,347 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 542 transitions. [2022-01-10 06:25:42,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 06:25:42,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:42,349 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:25:42,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:42,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:42,560 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:42,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash 484066408, now seen corresponding path program 1 times [2022-01-10 06:25:42,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:42,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847173826] [2022-01-10 06:25:42,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:42,561 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:42,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:42,562 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:42,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 06:25:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:42,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:25:42,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:42,887 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:42,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:42,888 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:42,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847173826] [2022-01-10 06:25:42,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847173826] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:42,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:42,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:25:42,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139771261] [2022-01-10 06:25:42,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:42,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:25:42,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:42,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:25:42,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:42,890 INFO L87 Difference]: Start difference. First operand 353 states and 542 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:42,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:42,903 INFO L93 Difference]: Finished difference Result 514 states and 770 transitions. [2022-01-10 06:25:42,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:25:42,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2022-01-10 06:25:42,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:42,906 INFO L225 Difference]: With dead ends: 514 [2022-01-10 06:25:42,906 INFO L226 Difference]: Without dead ends: 356 [2022-01-10 06:25:42,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:42,908 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 1 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:42,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1050 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:42,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-01-10 06:25:42,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 355. [2022-01-10 06:25:42,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 278 states have (on average 1.564748201438849) internal successors, (435), 284 states have internal predecessors, (435), 50 states have call successors, (50), 22 states have call predecessors, (50), 26 states have return successors, (59), 48 states have call predecessors, (59), 49 states have call successors, (59) [2022-01-10 06:25:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 544 transitions. [2022-01-10 06:25:42,919 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 544 transitions. Word has length 108 [2022-01-10 06:25:42,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:42,919 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 544 transitions. [2022-01-10 06:25:42,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:42,920 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 544 transitions. [2022-01-10 06:25:42,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 06:25:42,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:42,921 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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] [2022-01-10 06:25:42,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:43,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:43,131 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:43,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:43,132 INFO L85 PathProgramCache]: Analyzing trace with hash 627650577, now seen corresponding path program 1 times [2022-01-10 06:25:43,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:43,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641676134] [2022-01-10 06:25:43,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:43,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:43,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:43,137 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:43,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 06:25:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:43,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:25:43,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:43,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:43,442 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:43,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641676134] [2022-01-10 06:25:43,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641676134] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:43,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:43,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:25:43,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774039158] [2022-01-10 06:25:43,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:43,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:25:43,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:43,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:25:43,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:43,444 INFO L87 Difference]: Start difference. First operand 355 states and 544 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:43,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:43,460 INFO L93 Difference]: Finished difference Result 749 states and 1166 transitions. [2022-01-10 06:25:43,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:25:43,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2022-01-10 06:25:43,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:43,462 INFO L225 Difference]: With dead ends: 749 [2022-01-10 06:25:43,462 INFO L226 Difference]: Without dead ends: 425 [2022-01-10 06:25:43,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:43,463 INFO L933 BasicCegarLoop]: 548 mSDtfsCounter, 126 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:43,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1028 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:43,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-01-10 06:25:43,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 417. [2022-01-10 06:25:43,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 326 states have (on average 1.5828220858895705) internal successors, (516), 332 states have internal predecessors, (516), 64 states have call successors, (64), 22 states have call predecessors, (64), 26 states have return successors, (75), 62 states have call predecessors, (75), 63 states have call successors, (75) [2022-01-10 06:25:43,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 655 transitions. [2022-01-10 06:25:43,475 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 655 transitions. Word has length 114 [2022-01-10 06:25:43,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:43,475 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 655 transitions. [2022-01-10 06:25:43,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:43,475 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 655 transitions. [2022-01-10 06:25:43,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 06:25:43,477 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:43,477 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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] [2022-01-10 06:25:43,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:43,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:43,686 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:43,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:43,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1166459345, now seen corresponding path program 1 times [2022-01-10 06:25:43,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:43,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964030580] [2022-01-10 06:25:43,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:43,687 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:43,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:43,688 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:43,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 06:25:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:43,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 06:25:43,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:44,111 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:44,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:25:44,280 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:44,281 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:44,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964030580] [2022-01-10 06:25:44,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964030580] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:25:44,281 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:25:44,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 06:25:44,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316770745] [2022-01-10 06:25:44,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:25:44,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:25:44,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:44,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:25:44,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:25:44,282 INFO L87 Difference]: Start difference. First operand 417 states and 655 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-01-10 06:25:44,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:44,534 INFO L93 Difference]: Finished difference Result 992 states and 1613 transitions. [2022-01-10 06:25:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:25:44,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 115 [2022-01-10 06:25:44,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:44,538 INFO L225 Difference]: With dead ends: 992 [2022-01-10 06:25:44,538 INFO L226 Difference]: Without dead ends: 834 [2022-01-10 06:25:44,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:25:44,539 INFO L933 BasicCegarLoop]: 598 mSDtfsCounter, 458 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:44,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [494 Valid, 2507 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 06:25:44,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-01-10 06:25:44,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 810. [2022-01-10 06:25:44,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 640 states have (on average 1.6390625) internal successors, (1049), 646 states have internal predecessors, (1049), 143 states have call successors, (143), 22 states have call predecessors, (143), 26 states have return successors, (164), 141 states have call predecessors, (164), 142 states have call successors, (164) [2022-01-10 06:25:44,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1356 transitions. [2022-01-10 06:25:44,573 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1356 transitions. Word has length 115 [2022-01-10 06:25:44,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:44,574 INFO L470 AbstractCegarLoop]: Abstraction has 810 states and 1356 transitions. [2022-01-10 06:25:44,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-01-10 06:25:44,574 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1356 transitions. [2022-01-10 06:25:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 06:25:44,579 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:44,579 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:25:44,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:44,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:44,789 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:44,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:44,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1381729172, now seen corresponding path program 1 times [2022-01-10 06:25:44,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:44,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398259214] [2022-01-10 06:25:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:44,791 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:44,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:44,792 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:44,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 06:25:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:44,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:25:44,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:45,140 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:45,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:45,141 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:45,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398259214] [2022-01-10 06:25:45,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398259214] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:45,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:45,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:25:45,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889508753] [2022-01-10 06:25:45,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:45,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:25:45,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:45,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:25:45,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:45,142 INFO L87 Difference]: Start difference. First operand 810 states and 1356 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:45,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:45,182 INFO L93 Difference]: Finished difference Result 1950 states and 3309 transitions. [2022-01-10 06:25:45,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:25:45,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2022-01-10 06:25:45,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:45,189 INFO L225 Difference]: With dead ends: 1950 [2022-01-10 06:25:45,189 INFO L226 Difference]: Without dead ends: 1208 [2022-01-10 06:25:45,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:45,192 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 124 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:45,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1085 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:45,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-01-10 06:25:45,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1200. [2022-01-10 06:25:45,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 951 states have (on average 1.6498422712933754) internal successors, (1569), 957 states have internal predecessors, (1569), 222 states have call successors, (222), 22 states have call predecessors, (222), 26 states have return successors, (253), 220 states have call predecessors, (253), 221 states have call successors, (253) [2022-01-10 06:25:45,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 2044 transitions. [2022-01-10 06:25:45,232 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 2044 transitions. Word has length 121 [2022-01-10 06:25:45,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:45,232 INFO L470 AbstractCegarLoop]: Abstraction has 1200 states and 2044 transitions. [2022-01-10 06:25:45,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:45,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 2044 transitions. [2022-01-10 06:25:45,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 06:25:45,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:45,237 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:25:45,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:45,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:45,446 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:45,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:45,447 INFO L85 PathProgramCache]: Analyzing trace with hash 920878545, now seen corresponding path program 1 times [2022-01-10 06:25:45,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:45,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630625172] [2022-01-10 06:25:45,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:45,447 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:45,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:45,448 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:45,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 06:25:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:45,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:25:45,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:45,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:45,781 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:45,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630625172] [2022-01-10 06:25:45,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630625172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:45,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:45,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:25:45,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851413373] [2022-01-10 06:25:45,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:45,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:25:45,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:45,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:25:45,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:45,782 INFO L87 Difference]: Start difference. First operand 1200 states and 2044 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:45,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:45,824 INFO L93 Difference]: Finished difference Result 2899 states and 4967 transitions. [2022-01-10 06:25:45,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:25:45,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2022-01-10 06:25:45,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:45,831 INFO L225 Difference]: With dead ends: 2899 [2022-01-10 06:25:45,831 INFO L226 Difference]: Without dead ends: 1820 [2022-01-10 06:25:45,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:45,834 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 122 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:45,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1066 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:45,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2022-01-10 06:25:45,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1812. [2022-01-10 06:25:45,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1812 states, 1444 states have (on average 1.6565096952908587) internal successors, (2392), 1450 states have internal predecessors, (2392), 341 states have call successors, (341), 22 states have call predecessors, (341), 26 states have return successors, (372), 339 states have call predecessors, (372), 340 states have call successors, (372) [2022-01-10 06:25:45,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 3105 transitions. [2022-01-10 06:25:45,915 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 3105 transitions. Word has length 122 [2022-01-10 06:25:45,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:45,915 INFO L470 AbstractCegarLoop]: Abstraction has 1812 states and 3105 transitions. [2022-01-10 06:25:45,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:45,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 3105 transitions. [2022-01-10 06:25:45,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 06:25:45,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:45,923 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:25:45,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:46,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:46,132 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:46,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:46,133 INFO L85 PathProgramCache]: Analyzing trace with hash 2091931118, now seen corresponding path program 1 times [2022-01-10 06:25:46,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:46,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793275693] [2022-01-10 06:25:46,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:46,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:46,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:46,135 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:46,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-01-10 06:25:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:46,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:25:46,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:46,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:46,468 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:46,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793275693] [2022-01-10 06:25:46,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793275693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:46,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:46,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:25:46,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915761735] [2022-01-10 06:25:46,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:46,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:25:46,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:46,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:25:46,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:46,469 INFO L87 Difference]: Start difference. First operand 1812 states and 3105 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:46,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:46,532 INFO L93 Difference]: Finished difference Result 4324 states and 7467 transitions. [2022-01-10 06:25:46,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:25:46,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2022-01-10 06:25:46,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:46,545 INFO L225 Difference]: With dead ends: 4324 [2022-01-10 06:25:46,545 INFO L226 Difference]: Without dead ends: 2758 [2022-01-10 06:25:46,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:46,552 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 120 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:46,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 1060 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:46,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2758 states. [2022-01-10 06:25:46,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2758 to 2750. [2022-01-10 06:25:46,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 2220 states have (on average 1.662162162162162) internal successors, (3690), 2226 states have internal predecessors, (3690), 503 states have call successors, (503), 22 states have call predecessors, (503), 26 states have return successors, (550), 501 states have call predecessors, (550), 502 states have call successors, (550) [2022-01-10 06:25:46,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 4743 transitions. [2022-01-10 06:25:46,658 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 4743 transitions. Word has length 123 [2022-01-10 06:25:46,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:46,658 INFO L470 AbstractCegarLoop]: Abstraction has 2750 states and 4743 transitions. [2022-01-10 06:25:46,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:46,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 4743 transitions. [2022-01-10 06:25:46,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 06:25:46,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:46,668 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:25:46,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:46,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:46,877 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:46,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:46,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1608328082, now seen corresponding path program 1 times [2022-01-10 06:25:46,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:46,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445529528] [2022-01-10 06:25:46,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:46,878 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:46,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:46,893 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:46,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-01-10 06:25:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:47,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:25:47,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:47,216 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:47,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:47,216 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:47,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445529528] [2022-01-10 06:25:47,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445529528] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:47,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:47,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:25:47,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994425922] [2022-01-10 06:25:47,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:47,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:25:47,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:47,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:25:47,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:47,218 INFO L87 Difference]: Start difference. First operand 2750 states and 4743 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:47,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:47,306 INFO L93 Difference]: Finished difference Result 6573 states and 11419 transitions. [2022-01-10 06:25:47,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:25:47,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2022-01-10 06:25:47,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:47,328 INFO L225 Difference]: With dead ends: 6573 [2022-01-10 06:25:47,328 INFO L226 Difference]: Without dead ends: 4273 [2022-01-10 06:25:47,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:47,339 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 118 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:47,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1060 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:47,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4273 states. [2022-01-10 06:25:47,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4273 to 4265. [2022-01-10 06:25:47,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4265 states, 3490 states have (on average 1.666189111747851) internal successors, (5815), 3496 states have internal predecessors, (5815), 748 states have call successors, (748), 22 states have call predecessors, (748), 26 states have return successors, (821), 746 states have call predecessors, (821), 747 states have call successors, (821) [2022-01-10 06:25:47,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4265 states to 4265 states and 7384 transitions. [2022-01-10 06:25:47,529 INFO L78 Accepts]: Start accepts. Automaton has 4265 states and 7384 transitions. Word has length 124 [2022-01-10 06:25:47,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:47,529 INFO L470 AbstractCegarLoop]: Abstraction has 4265 states and 7384 transitions. [2022-01-10 06:25:47,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4265 states and 7384 transitions. [2022-01-10 06:25:47,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 06:25:47,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:47,542 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:25:47,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:47,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:47,751 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:47,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:47,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1442625674, now seen corresponding path program 1 times [2022-01-10 06:25:47,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:47,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389677366] [2022-01-10 06:25:47,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:47,752 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:47,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:47,767 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:47,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-01-10 06:25:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:47,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:25:47,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:48,127 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:48,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:48,127 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:48,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389677366] [2022-01-10 06:25:48,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389677366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:48,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:48,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:25:48,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323695907] [2022-01-10 06:25:48,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:48,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:25:48,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:48,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:25:48,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:48,128 INFO L87 Difference]: Start difference. First operand 4265 states and 7384 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:48,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:48,386 INFO L93 Difference]: Finished difference Result 10589 states and 18431 transitions. [2022-01-10 06:25:48,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:25:48,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2022-01-10 06:25:48,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:48,447 INFO L225 Difference]: With dead ends: 10589 [2022-01-10 06:25:48,447 INFO L226 Difference]: Without dead ends: 7006 [2022-01-10 06:25:48,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:48,480 INFO L933 BasicCegarLoop]: 554 mSDtfsCounter, 116 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:48,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 1079 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:48,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7006 states. [2022-01-10 06:25:48,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7006 to 6998. [2022-01-10 06:25:48,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6998 states, 5730 states have (on average 1.6614310645724257) internal successors, (9520), 5736 states have internal predecessors, (9520), 1241 states have call successors, (1241), 22 states have call predecessors, (1241), 26 states have return successors, (1358), 1239 states have call predecessors, (1358), 1240 states have call successors, (1358) [2022-01-10 06:25:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6998 states to 6998 states and 12119 transitions. [2022-01-10 06:25:48,790 INFO L78 Accepts]: Start accepts. Automaton has 6998 states and 12119 transitions. Word has length 125 [2022-01-10 06:25:48,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:48,790 INFO L470 AbstractCegarLoop]: Abstraction has 6998 states and 12119 transitions. [2022-01-10 06:25:48,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:48,790 INFO L276 IsEmpty]: Start isEmpty. Operand 6998 states and 12119 transitions. [2022-01-10 06:25:48,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 06:25:48,806 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:48,806 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:25:48,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:49,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:49,015 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:49,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:49,015 INFO L85 PathProgramCache]: Analyzing trace with hash -29302538, now seen corresponding path program 1 times [2022-01-10 06:25:49,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:49,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723952259] [2022-01-10 06:25:49,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:49,016 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:49,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:49,017 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:49,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-01-10 06:25:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:49,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:25:49,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:49,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:49,411 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:49,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723952259] [2022-01-10 06:25:49,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723952259] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:49,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:49,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:25:49,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765321413] [2022-01-10 06:25:49,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:49,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:25:49,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:49,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:25:49,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:49,412 INFO L87 Difference]: Start difference. First operand 6998 states and 12119 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:49,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:49,717 INFO L93 Difference]: Finished difference Result 17729 states and 30892 transitions. [2022-01-10 06:25:49,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:25:49,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2022-01-10 06:25:49,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:49,761 INFO L225 Difference]: With dead ends: 17729 [2022-01-10 06:25:49,761 INFO L226 Difference]: Without dead ends: 11790 [2022-01-10 06:25:49,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:49,779 INFO L933 BasicCegarLoop]: 546 mSDtfsCounter, 114 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:49,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1067 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11790 states. [2022-01-10 06:25:50,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11790 to 11782. [2022-01-10 06:25:50,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11782 states, 9692 states have (on average 1.660957490713991) internal successors, (16098), 9698 states have internal predecessors, (16098), 2063 states have call successors, (2063), 22 states have call predecessors, (2063), 26 states have return successors, (2258), 2061 states have call predecessors, (2258), 2062 states have call successors, (2258) [2022-01-10 06:25:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11782 states to 11782 states and 20419 transitions. [2022-01-10 06:25:50,254 INFO L78 Accepts]: Start accepts. Automaton has 11782 states and 20419 transitions. Word has length 126 [2022-01-10 06:25:50,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:50,255 INFO L470 AbstractCegarLoop]: Abstraction has 11782 states and 20419 transitions. [2022-01-10 06:25:50,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:50,256 INFO L276 IsEmpty]: Start isEmpty. Operand 11782 states and 20419 transitions. [2022-01-10 06:25:50,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 06:25:50,278 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:50,278 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:25:50,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:50,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:50,490 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:50,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:50,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1035678700, now seen corresponding path program 1 times [2022-01-10 06:25:50,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:50,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200507803] [2022-01-10 06:25:50,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:50,491 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:50,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:50,492 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:50,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-01-10 06:25:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:50,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:25:50,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:50,877 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:50,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:50,878 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:50,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200507803] [2022-01-10 06:25:50,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [200507803] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:50,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:50,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:25:50,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622531926] [2022-01-10 06:25:50,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:50,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:25:50,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:50,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:25:50,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:50,882 INFO L87 Difference]: Start difference. First operand 11782 states and 20419 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:51,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:51,481 INFO L93 Difference]: Finished difference Result 28162 states and 48736 transitions. [2022-01-10 06:25:51,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:25:51,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-01-10 06:25:51,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:51,551 INFO L225 Difference]: With dead ends: 28162 [2022-01-10 06:25:51,551 INFO L226 Difference]: Without dead ends: 18383 [2022-01-10 06:25:51,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:51,590 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 112 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:51,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 1035 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:51,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18383 states. [2022-01-10 06:25:52,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18383 to 18375. [2022-01-10 06:25:52,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18375 states, 15082 states have (on average 1.6353268797241745) internal successors, (24664), 15088 states have internal predecessors, (24664), 3266 states have call successors, (3266), 22 states have call predecessors, (3266), 26 states have return successors, (3605), 3264 states have call predecessors, (3605), 3265 states have call successors, (3605) [2022-01-10 06:25:52,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18375 states to 18375 states and 31535 transitions. [2022-01-10 06:25:52,601 INFO L78 Accepts]: Start accepts. Automaton has 18375 states and 31535 transitions. Word has length 127 [2022-01-10 06:25:52,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:52,601 INFO L470 AbstractCegarLoop]: Abstraction has 18375 states and 31535 transitions. [2022-01-10 06:25:52,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:52,601 INFO L276 IsEmpty]: Start isEmpty. Operand 18375 states and 31535 transitions. [2022-01-10 06:25:52,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-10 06:25:52,639 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:52,639 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:25:52,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-01-10 06:25:52,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:52,849 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:52,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:52,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1124735575, now seen corresponding path program 1 times [2022-01-10 06:25:52,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:52,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289454419] [2022-01-10 06:25:52,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:52,850 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:52,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:52,863 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:52,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-01-10 06:25:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:53,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:25:53,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:53,241 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:53,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:53,242 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:53,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289454419] [2022-01-10 06:25:53,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289454419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:53,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:53,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:25:53,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162285552] [2022-01-10 06:25:53,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:53,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:25:53,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:53,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:25:53,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:53,244 INFO L87 Difference]: Start difference. First operand 18375 states and 31535 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:54,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:54,280 INFO L93 Difference]: Finished difference Result 48584 states and 83700 transitions. [2022-01-10 06:25:54,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:25:54,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2022-01-10 06:25:54,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:54,414 INFO L225 Difference]: With dead ends: 48584 [2022-01-10 06:25:54,414 INFO L226 Difference]: Without dead ends: 32819 [2022-01-10 06:25:54,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:54,454 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 110 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:54,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1065 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:54,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32819 states. [2022-01-10 06:25:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32819 to 32811. [2022-01-10 06:25:55,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32811 states, 27068 states have (on average 1.6318531106842027) internal successors, (44171), 27074 states have internal predecessors, (44171), 5716 states have call successors, (5716), 22 states have call predecessors, (5716), 26 states have return successors, (6329), 5714 states have call predecessors, (6329), 5715 states have call successors, (6329) [2022-01-10 06:25:55,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32811 states to 32811 states and 56216 transitions. [2022-01-10 06:25:55,908 INFO L78 Accepts]: Start accepts. Automaton has 32811 states and 56216 transitions. Word has length 128 [2022-01-10 06:25:55,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:25:55,908 INFO L470 AbstractCegarLoop]: Abstraction has 32811 states and 56216 transitions. [2022-01-10 06:25:55,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:55,908 INFO L276 IsEmpty]: Start isEmpty. Operand 32811 states and 56216 transitions. [2022-01-10 06:25:55,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-10 06:25:55,934 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:25:55,934 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:25:55,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-01-10 06:25:56,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:25:56,144 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:25:56,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:25:56,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1111942246, now seen corresponding path program 1 times [2022-01-10 06:25:56,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:25:56,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969766950] [2022-01-10 06:25:56,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:25:56,146 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:25:56,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:25:56,146 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:25:56,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-01-10 06:25:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:25:56,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:25:56,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:25:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:25:56,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:25:56,524 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:25:56,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969766950] [2022-01-10 06:25:56,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969766950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:25:56,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:25:56,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:25:56,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041259030] [2022-01-10 06:25:56,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:25:56,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:25:56,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:25:56,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:25:56,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:56,526 INFO L87 Difference]: Start difference. First operand 32811 states and 56216 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:25:58,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:25:58,315 INFO L93 Difference]: Finished difference Result 89481 states and 153802 transitions. [2022-01-10 06:25:58,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:25:58,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2022-01-10 06:25:58,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:25:58,570 INFO L225 Difference]: With dead ends: 89481 [2022-01-10 06:25:58,570 INFO L226 Difference]: Without dead ends: 60156 [2022-01-10 06:25:58,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:25:58,650 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 108 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:25:58,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 1066 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:25:58,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60156 states. [2022-01-10 06:26:00,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60156 to 60148. [2022-01-10 06:26:01,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60148 states, 49892 states have (on average 1.627395173574922) internal successors, (81194), 49898 states have internal predecessors, (81194), 10229 states have call successors, (10229), 22 states have call predecessors, (10229), 26 states have return successors, (11374), 10227 states have call predecessors, (11374), 10228 states have call successors, (11374) [2022-01-10 06:26:01,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60148 states to 60148 states and 102797 transitions. [2022-01-10 06:26:01,388 INFO L78 Accepts]: Start accepts. Automaton has 60148 states and 102797 transitions. Word has length 129 [2022-01-10 06:26:01,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:01,389 INFO L470 AbstractCegarLoop]: Abstraction has 60148 states and 102797 transitions. [2022-01-10 06:26:01,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:01,389 INFO L276 IsEmpty]: Start isEmpty. Operand 60148 states and 102797 transitions. [2022-01-10 06:26:01,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-10 06:26:01,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:01,416 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:26:01,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:01,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:01,626 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:01,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:01,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1798621847, now seen corresponding path program 1 times [2022-01-10 06:26:01,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:01,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554196855] [2022-01-10 06:26:01,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:01,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:01,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:01,629 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:01,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-01-10 06:26:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:01,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:26:01,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:02,029 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:26:02,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:26:02,030 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:02,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554196855] [2022-01-10 06:26:02,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554196855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:26:02,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:26:02,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:26:02,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170602698] [2022-01-10 06:26:02,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:26:02,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:26:02,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:02,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:26:02,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:02,031 INFO L87 Difference]: Start difference. First operand 60148 states and 102797 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:05,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:05,191 INFO L93 Difference]: Finished difference Result 112572 states and 192811 transitions. [2022-01-10 06:26:05,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:26:05,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2022-01-10 06:26:05,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:05,566 INFO L225 Difference]: With dead ends: 112572 [2022-01-10 06:26:05,567 INFO L226 Difference]: Without dead ends: 112414 [2022-01-10 06:26:05,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:26:05,611 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 106 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:05,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 1065 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:26:05,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112414 states. [2022-01-10 06:26:09,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112414 to 112406. [2022-01-10 06:26:10,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112406 states, 93782 states have (on average 1.6218570727858224) internal successors, (152101), 93788 states have internal predecessors, (152101), 18597 states have call successors, (18597), 22 states have call predecessors, (18597), 26 states have return successors, (20788), 18595 states have call predecessors, (20788), 18596 states have call successors, (20788) [2022-01-10 06:26:10,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112406 states to 112406 states and 191486 transitions. [2022-01-10 06:26:10,475 INFO L78 Accepts]: Start accepts. Automaton has 112406 states and 191486 transitions. Word has length 130 [2022-01-10 06:26:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:26:10,475 INFO L470 AbstractCegarLoop]: Abstraction has 112406 states and 191486 transitions. [2022-01-10 06:26:10,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-01-10 06:26:10,475 INFO L276 IsEmpty]: Start isEmpty. Operand 112406 states and 191486 transitions. [2022-01-10 06:26:10,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-10 06:26:10,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:26:10,755 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 06:26:10,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-01-10 06:26:10,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:26:10,964 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:26:10,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:26:10,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1885256581, now seen corresponding path program 1 times [2022-01-10 06:26:10,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:26:10,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517616180] [2022-01-10 06:26:10,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:26:10,965 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:26:10,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:26:10,966 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:26:10,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-01-10 06:26:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:26:11,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 06:26:11,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:26:11,462 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 06:26:11,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:26:11,801 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-10 06:26:11,801 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:26:11,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517616180] [2022-01-10 06:26:11,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517616180] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:26:11,801 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:26:11,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-01-10 06:26:11,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260997645] [2022-01-10 06:26:11,802 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:26:11,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 06:26:11,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:26:11,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 06:26:11,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-10 06:26:11,803 INFO L87 Difference]: Start difference. First operand 112406 states and 191486 transitions. Second operand has 16 states, 16 states have (on average 10.25) internal successors, (164), 14 states have internal predecessors, (164), 4 states have call successors, (29), 6 states have call predecessors, (29), 9 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) [2022-01-10 06:26:24,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:26:24,747 INFO L93 Difference]: Finished difference Result 331166 states and 570844 transitions. [2022-01-10 06:26:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 06:26:24,747 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.25) internal successors, (164), 14 states have internal predecessors, (164), 4 states have call successors, (29), 6 states have call predecessors, (29), 9 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) Word has length 131 [2022-01-10 06:26:24,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:26:26,630 INFO L225 Difference]: With dead ends: 331166 [2022-01-10 06:26:26,630 INFO L226 Difference]: Without dead ends: 331014 [2022-01-10 06:26:27,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2022-01-10 06:26:27,005 INFO L933 BasicCegarLoop]: 695 mSDtfsCounter, 1645 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 5034 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 3994 SdHoareTripleChecker+Invalid, 5447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 5034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:26:27,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1704 Valid, 3994 Invalid, 5447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 5034 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-10 06:26:27,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331014 states. [2022-01-10 06:26:38,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331014 to 224809.