java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:41:19,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:41:19,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:41:19,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:41:19,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:41:19,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:41:19,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:41:19,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:41:19,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:41:19,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:41:19,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:41:19,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:41:19,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:41:19,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:41:19,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:41:19,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:41:19,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:41:19,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:41:19,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:41:19,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:41:19,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:41:19,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:41:19,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:41:19,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:41:19,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:41:19,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:41:19,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:41:19,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:41:19,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:41:19,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:41:19,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:41:19,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:41:19,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:41:19,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:41:19,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:41:19,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:41:19,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:41:19,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:41:19,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:41:19,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:41:19,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:41:19,935 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:41:19,950 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:41:19,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:41:19,950 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:41:19,951 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:41:19,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:41:19,952 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:41:19,952 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:41:19,952 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:41:19,952 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:41:19,952 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:41:19,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:41:19,953 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:41:19,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:41:19,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:41:19,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:41:19,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:41:19,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:41:19,956 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:41:19,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:41:19,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:41:19,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:41:19,957 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:41:19,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:41:19,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:41:19,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:41:19,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:41:19,959 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:41:19,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:41:19,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:41:19,960 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:41:20,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:41:20,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:41:20,025 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:41:20,027 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:41:20,027 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:41:20,028 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c [2019-09-10 02:41:20,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ab19867/41088df388084ab3b0dd6d726513b057/FLAG2285ed979 [2019-09-10 02:41:20,740 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:41:20,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c [2019-09-10 02:41:20,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ab19867/41088df388084ab3b0dd6d726513b057/FLAG2285ed979 [2019-09-10 02:41:20,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ab19867/41088df388084ab3b0dd6d726513b057 [2019-09-10 02:41:20,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:41:20,969 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:41:20,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:41:20,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:41:20,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:41:20,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:41:20" (1/1) ... [2019-09-10 02:41:20,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca5e5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:20, skipping insertion in model container [2019-09-10 02:41:20,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:41:20" (1/1) ... [2019-09-10 02:41:20,986 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:41:21,061 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:41:21,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:41:21,825 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:41:21,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:41:22,077 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:41:22,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:22 WrapperNode [2019-09-10 02:41:22,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:41:22,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:41:22,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:41:22,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:41:22,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:22" (1/1) ... [2019-09-10 02:41:22,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:22" (1/1) ... [2019-09-10 02:41:22,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:22" (1/1) ... [2019-09-10 02:41:22,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:22" (1/1) ... [2019-09-10 02:41:22,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:22" (1/1) ... [2019-09-10 02:41:22,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:22" (1/1) ... [2019-09-10 02:41:22,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:22" (1/1) ... [2019-09-10 02:41:22,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:41:22,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:41:22,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:41:22,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:41:22,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:41:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:41:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:41:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:41:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:41:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:41:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:41:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:41:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:41:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:41:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:41:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-09-10 02:41:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-09-10 02:41:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:41:22,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:41:22,400 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:41:22,401 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:41:22,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:41:22,402 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-10 02:41:22,402 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-09-10 02:41:22,402 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:41:22,403 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:41:22,403 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-10 02:41:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-09-10 02:41:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:41:22,405 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:41:22,405 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:41:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:41:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:41:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:41:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:41:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-10 02:41:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-10 02:41:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-09-10 02:41:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-10 02:41:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-10 02:41:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-10 02:41:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:41:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:41:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:41:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:41:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:41:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:41:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:41:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:41:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:41:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:41:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:41:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:41:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:41:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:41:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:41:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:41:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:41:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:41:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:41:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:41:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:41:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-10 02:41:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:41:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-10 02:41:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:41:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-10 02:41:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:41:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:41:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:41:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:41:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:41:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-10 02:41:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-10 02:41:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-10 02:41:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-10 02:41:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-10 02:41:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-10 02:41:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-10 02:41:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-10 02:41:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-10 02:41:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-09-10 02:41:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-10 02:41:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-09-10 02:41:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:41:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:41:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:41:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:41:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:41:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:41:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:41:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:41:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:41:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:41:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:41:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:41:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:41:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:41:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:41:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:41:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:41:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:41:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:41:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:41:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:41:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:41:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:41:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:41:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:41:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:41:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:41:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:41:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:41:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:41:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:41:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:41:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:41:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:41:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:41:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:41:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:41:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:41:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:41:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:41:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:41:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:41:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:41:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:41:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:41:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:41:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:41:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:41:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:41:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:41:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:41:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:41:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:41:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:41:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:41:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:41:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:41:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:41:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:41:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:41:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:41:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:41:22,444 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:41:22,444 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:41:22,453 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:41:22,453 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:41:22,453 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:41:22,453 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:41:22,453 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-09-10 02:41:22,453 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-09-10 02:41:22,453 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:41:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:41:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:41:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:41:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:41:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:41:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:41:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:41:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:41:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:41:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:41:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:41:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:41:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:41:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:41:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:41:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:41:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:41:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:41:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:41:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:41:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:41:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-10 02:41:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-10 02:41:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-09-10 02:41:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-10 02:41:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-10 02:41:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-10 02:41:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-09-10 02:41:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-10 02:41:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-09-10 02:41:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-10 02:41:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-09-10 02:41:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:41:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:41:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:41:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:41:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:41:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:41:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:41:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:41:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:41:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:41:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:41:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:41:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:41:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:41:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:41:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:41:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:41:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:41:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:41:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:41:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:41:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:41:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:41:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:41:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:41:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:41:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:41:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:41:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:41:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:41:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:41:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-10 02:41:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-10 02:41:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-10 02:41:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-10 02:41:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-10 02:41:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-10 02:41:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-10 02:41:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-10 02:41:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-10 02:41:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-09-10 02:41:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-10 02:41:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-10 02:41:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-10 02:41:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-10 02:41:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:41:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:41:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:41:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:41:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:41:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:41:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:41:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:41:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:41:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:41:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:41:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:41:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:41:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:41:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:41:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:41:24,604 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:41:24,604 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:41:24,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:41:24 BoogieIcfgContainer [2019-09-10 02:41:24,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:41:24,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:41:24,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:41:24,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:41:24,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:41:20" (1/3) ... [2019-09-10 02:41:24,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100d6962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:41:24, skipping insertion in model container [2019-09-10 02:41:24,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:22" (2/3) ... [2019-09-10 02:41:24,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100d6962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:41:24, skipping insertion in model container [2019-09-10 02:41:24,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:41:24" (3/3) ... [2019-09-10 02:41:24,614 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product25.cil.c [2019-09-10 02:41:24,624 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:41:24,634 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:41:24,652 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:41:24,678 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:41:24,678 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:41:24,678 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:41:24,678 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:41:24,678 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:41:24,679 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:41:24,679 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:41:24,679 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:41:24,726 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states. [2019-09-10 02:41:24,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-09-10 02:41:24,753 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:24,754 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:24,757 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:24,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:24,762 INFO L82 PathProgramCache]: Analyzing trace with hash 979301507, now seen corresponding path program 1 times [2019-09-10 02:41:24,764 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:24,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:24,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:24,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:24,813 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:25,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:25,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:41:25,437 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:25,445 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:41:25,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:41:25,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:25,466 INFO L87 Difference]: Start difference. First operand 587 states. Second operand 2 states. [2019-09-10 02:41:25,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:25,567 INFO L93 Difference]: Finished difference Result 567 states and 769 transitions. [2019-09-10 02:41:25,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:41:25,570 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 157 [2019-09-10 02:41:25,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:25,596 INFO L225 Difference]: With dead ends: 567 [2019-09-10 02:41:25,596 INFO L226 Difference]: Without dead ends: 558 [2019-09-10 02:41:25,598 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:25,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2019-09-10 02:41:25,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2019-09-10 02:41:25,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2019-09-10 02:41:25,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 758 transitions. [2019-09-10 02:41:25,742 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 758 transitions. Word has length 157 [2019-09-10 02:41:25,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:25,744 INFO L475 AbstractCegarLoop]: Abstraction has 558 states and 758 transitions. [2019-09-10 02:41:25,744 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:41:25,744 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 758 transitions. [2019-09-10 02:41:25,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-09-10 02:41:25,751 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:25,751 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:25,752 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:25,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:25,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1208333111, now seen corresponding path program 1 times [2019-09-10 02:41:25,755 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:25,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:25,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:25,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:25,756 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:26,008 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:26,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:26,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:26,009 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:26,014 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:26,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:26,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:26,015 INFO L87 Difference]: Start difference. First operand 558 states and 758 transitions. Second operand 3 states. [2019-09-10 02:41:26,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:26,076 INFO L93 Difference]: Finished difference Result 561 states and 761 transitions. [2019-09-10 02:41:26,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:26,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-09-10 02:41:26,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:26,086 INFO L225 Difference]: With dead ends: 561 [2019-09-10 02:41:26,086 INFO L226 Difference]: Without dead ends: 561 [2019-09-10 02:41:26,087 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:26,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2019-09-10 02:41:26,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 560. [2019-09-10 02:41:26,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2019-09-10 02:41:26,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 760 transitions. [2019-09-10 02:41:26,156 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 760 transitions. Word has length 158 [2019-09-10 02:41:26,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:26,159 INFO L475 AbstractCegarLoop]: Abstraction has 560 states and 760 transitions. [2019-09-10 02:41:26,159 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:26,159 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 760 transitions. [2019-09-10 02:41:26,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-09-10 02:41:26,165 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:26,166 INFO L399 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:26,166 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:26,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:26,166 INFO L82 PathProgramCache]: Analyzing trace with hash -898533821, now seen corresponding path program 1 times [2019-09-10 02:41:26,166 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:26,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:26,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:26,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:26,168 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:26,390 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:26,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:26,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:26,391 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:26,393 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:26,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:26,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:26,396 INFO L87 Difference]: Start difference. First operand 560 states and 760 transitions. Second operand 3 states. [2019-09-10 02:41:26,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:26,434 INFO L93 Difference]: Finished difference Result 603 states and 833 transitions. [2019-09-10 02:41:26,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:26,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-09-10 02:41:26,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:26,444 INFO L225 Difference]: With dead ends: 603 [2019-09-10 02:41:26,444 INFO L226 Difference]: Without dead ends: 603 [2019-09-10 02:41:26,445 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:26,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2019-09-10 02:41:26,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 602. [2019-09-10 02:41:26,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-09-10 02:41:26,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 832 transitions. [2019-09-10 02:41:26,486 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 832 transitions. Word has length 164 [2019-09-10 02:41:26,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:26,488 INFO L475 AbstractCegarLoop]: Abstraction has 602 states and 832 transitions. [2019-09-10 02:41:26,488 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:26,488 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 832 transitions. [2019-09-10 02:41:26,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-09-10 02:41:26,495 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:26,496 INFO L399 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:26,496 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:26,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:26,496 INFO L82 PathProgramCache]: Analyzing trace with hash -2079025427, now seen corresponding path program 1 times [2019-09-10 02:41:26,496 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:26,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:26,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:26,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:26,498 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:26,745 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 02:41:26,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:26,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:41:26,745 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:26,746 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:41:26,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:41:26,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:41:26,747 INFO L87 Difference]: Start difference. First operand 602 states and 832 transitions. Second operand 7 states. [2019-09-10 02:41:30,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:30,409 INFO L93 Difference]: Finished difference Result 889 states and 1204 transitions. [2019-09-10 02:41:30,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:41:30,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2019-09-10 02:41:30,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:30,420 INFO L225 Difference]: With dead ends: 889 [2019-09-10 02:41:30,420 INFO L226 Difference]: Without dead ends: 887 [2019-09-10 02:41:30,421 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:41:30,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2019-09-10 02:41:30,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 878. [2019-09-10 02:41:30,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2019-09-10 02:41:30,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1192 transitions. [2019-09-10 02:41:30,471 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1192 transitions. Word has length 165 [2019-09-10 02:41:30,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:30,472 INFO L475 AbstractCegarLoop]: Abstraction has 878 states and 1192 transitions. [2019-09-10 02:41:30,472 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:41:30,472 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1192 transitions. [2019-09-10 02:41:30,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-09-10 02:41:30,475 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:30,476 INFO L399 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:30,476 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:30,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:30,477 INFO L82 PathProgramCache]: Analyzing trace with hash 2091303860, now seen corresponding path program 1 times [2019-09-10 02:41:30,477 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:30,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:30,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:30,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:30,478 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:30,812 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 02:41:30,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:30,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-10 02:41:30,812 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:30,813 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 02:41:30,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 02:41:30,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-09-10 02:41:30,815 INFO L87 Difference]: Start difference. First operand 878 states and 1192 transitions. Second operand 18 states. [2019-09-10 02:41:31,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:31,383 INFO L93 Difference]: Finished difference Result 974 states and 1325 transitions. [2019-09-10 02:41:31,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-10 02:41:31,384 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 166 [2019-09-10 02:41:31,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:31,392 INFO L225 Difference]: With dead ends: 974 [2019-09-10 02:41:31,392 INFO L226 Difference]: Without dead ends: 966 [2019-09-10 02:41:31,393 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-09-10 02:41:31,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2019-09-10 02:41:31,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 964. [2019-09-10 02:41:31,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2019-09-10 02:41:31,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1313 transitions. [2019-09-10 02:41:31,446 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1313 transitions. Word has length 166 [2019-09-10 02:41:31,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:31,448 INFO L475 AbstractCegarLoop]: Abstraction has 964 states and 1313 transitions. [2019-09-10 02:41:31,449 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 02:41:31,449 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1313 transitions. [2019-09-10 02:41:31,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-09-10 02:41:31,453 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:31,454 INFO L399 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:31,454 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:31,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:31,455 INFO L82 PathProgramCache]: Analyzing trace with hash -328084636, now seen corresponding path program 1 times [2019-09-10 02:41:31,455 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:31,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:31,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:31,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:31,461 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 02:41:31,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:31,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:41:31,757 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:31,757 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:41:31,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:41:31,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:41:31,758 INFO L87 Difference]: Start difference. First operand 964 states and 1313 transitions. Second operand 8 states. [2019-09-10 02:41:32,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:32,751 INFO L93 Difference]: Finished difference Result 1642 states and 2209 transitions. [2019-09-10 02:41:32,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 02:41:32,752 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2019-09-10 02:41:32,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:32,763 INFO L225 Difference]: With dead ends: 1642 [2019-09-10 02:41:32,764 INFO L226 Difference]: Without dead ends: 1642 [2019-09-10 02:41:32,764 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:41:32,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2019-09-10 02:41:32,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1623. [2019-09-10 02:41:32,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1623 states. [2019-09-10 02:41:32,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2190 transitions. [2019-09-10 02:41:32,845 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2190 transitions. Word has length 175 [2019-09-10 02:41:32,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:32,848 INFO L475 AbstractCegarLoop]: Abstraction has 1623 states and 2190 transitions. [2019-09-10 02:41:32,848 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:41:32,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2190 transitions. [2019-09-10 02:41:32,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-09-10 02:41:32,853 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:32,854 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:32,854 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:32,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:32,855 INFO L82 PathProgramCache]: Analyzing trace with hash 958665188, now seen corresponding path program 1 times [2019-09-10 02:41:32,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:32,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:32,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:32,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:32,857 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-10 02:41:33,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:33,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-09-10 02:41:33,206 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:33,207 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-10 02:41:33,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-10 02:41:33,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2019-09-10 02:41:33,208 INFO L87 Difference]: Start difference. First operand 1623 states and 2190 transitions. Second operand 17 states. [2019-09-10 02:41:34,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:34,063 INFO L93 Difference]: Finished difference Result 1622 states and 2186 transitions. [2019-09-10 02:41:34,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 02:41:34,065 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 176 [2019-09-10 02:41:34,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:34,079 INFO L225 Difference]: With dead ends: 1622 [2019-09-10 02:41:34,080 INFO L226 Difference]: Without dead ends: 1622 [2019-09-10 02:41:34,080 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2019-09-10 02:41:34,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2019-09-10 02:41:34,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1621. [2019-09-10 02:41:34,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1621 states. [2019-09-10 02:41:34,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2185 transitions. [2019-09-10 02:41:34,143 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2185 transitions. Word has length 176 [2019-09-10 02:41:34,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:34,146 INFO L475 AbstractCegarLoop]: Abstraction has 1621 states and 2185 transitions. [2019-09-10 02:41:34,146 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-10 02:41:34,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2185 transitions. [2019-09-10 02:41:34,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-09-10 02:41:34,151 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:34,151 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:34,151 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:34,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:34,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1418562754, now seen corresponding path program 2 times [2019-09-10 02:41:34,152 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:34,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:34,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:34,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:34,153 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:34,377 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-10 02:41:34,377 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:34,377 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:41:34,378 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:41:34,379 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:41:34,380 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:34,380 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 02:41:34,410 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:41:34,411 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:41:34,750 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-09-10 02:41:34,751 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:41:34,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 2120 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-10 02:41:34,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:41:35,059 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-10 02:41:35,060 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:41:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-10 02:41:35,717 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:41:35,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-09-10 02:41:35,718 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:35,718 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:41:35,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:41:35,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-09-10 02:41:35,719 INFO L87 Difference]: Start difference. First operand 1621 states and 2185 transitions. Second operand 8 states. [2019-09-10 02:41:36,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:36,632 INFO L93 Difference]: Finished difference Result 3210 states and 4345 transitions. [2019-09-10 02:41:36,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 02:41:36,633 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 176 [2019-09-10 02:41:36,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:36,653 INFO L225 Difference]: With dead ends: 3210 [2019-09-10 02:41:36,653 INFO L226 Difference]: Without dead ends: 3210 [2019-09-10 02:41:36,654 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 341 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2019-09-10 02:41:36,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2019-09-10 02:41:36,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 3195. [2019-09-10 02:41:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3195 states. [2019-09-10 02:41:36,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3195 states to 3195 states and 4331 transitions. [2019-09-10 02:41:36,796 INFO L78 Accepts]: Start accepts. Automaton has 3195 states and 4331 transitions. Word has length 176 [2019-09-10 02:41:36,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:36,797 INFO L475 AbstractCegarLoop]: Abstraction has 3195 states and 4331 transitions. [2019-09-10 02:41:36,797 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:41:36,797 INFO L276 IsEmpty]: Start isEmpty. Operand 3195 states and 4331 transitions. [2019-09-10 02:41:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-09-10 02:41:36,805 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:36,805 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:36,806 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:36,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:36,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1593561681, now seen corresponding path program 1 times [2019-09-10 02:41:36,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:36,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:36,807 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:41:36,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:36,808 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:37,110 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-10 02:41:37,110 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:37,110 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:41:37,112 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2019-09-10 02:41:37,114 INFO L207 CegarAbsIntRunner]: [82], [85], [86], [89], [95], [96], [99], [108], [119], [122], [132], [133], [162], [165], [166], [167], [169], [279], [281], [285], [288], [289], [324], [327], [336], [349], [351], [352], [355], [365], [619], [621], [622], [623], [661], [664], [678], [707], [710], [716], [717], [724], [725], [736], [738], [742], [745], [769], [773], [776], [784], [787], [815], [824], [828], [830], [832], [835], [842], [849], [852], [990], [992], [1009], [1087], [1089], [1092], [1094], [1097], [1157], [1211], [1233], [1244], [1247], [1288], [1290], [1403], [1406], [1408], [1411], [1420], [1426], [1429], [1438], [1454], [1457], [1466], [1632], [1634], [1636], [1638], [1639], [1677], [1687], [1688], [1689], [1690], [1691], [1692], [1695], [1696], [1697], [1698], [1699], [1701], [1702], [1703], [1704], [1717], [1718], [1757], [1758], [1773], [1779], [1780], [1781], [1782], [1783], [1784], [1785], [1786], [1787], [1788], [1789], [1790], [1791], [1792], [1793], [1795], [1796], [1797], [1798], [1831], [1833], [1834], [1851], [1853], [1854], [1855], [1856], [1857], [1859], [1860], [1861], [1863], [1864], [1865], [1866], [1867], [1868], [1869], [1889], [1890], [1891], [1892], [1893], [1894], [1895], [1896], [1897] [2019-09-10 02:41:37,162 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:41:37,163 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:41:37,301 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:41:37,303 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 189 root evaluator evaluations with a maximum evaluation depth of 0. Performed 189 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 372 variables. [2019-09-10 02:41:37,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:37,309 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:41:37,435 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:41:37,435 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:41:37,440 INFO L420 sIntCurrentIteration]: We unified 176 AI predicates to 176 [2019-09-10 02:41:37,440 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:41:37,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:41:37,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:41:37,441 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:37,442 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:41:37,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:41:37,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:37,443 INFO L87 Difference]: Start difference. First operand 3195 states and 4331 transitions. Second operand 2 states. [2019-09-10 02:41:37,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:37,444 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:41:37,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:41:37,444 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 177 [2019-09-10 02:41:37,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:37,444 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:41:37,444 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:41:37,445 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:37,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:41:37,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:41:37,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:41:37,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:41:37,446 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 177 [2019-09-10 02:41:37,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:37,446 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:41:37,446 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:41:37,446 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:41:37,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:41:37,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:41:37 BoogieIcfgContainer [2019-09-10 02:41:37,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:41:37,459 INFO L168 Benchmark]: Toolchain (without parser) took 16487.45 ms. Allocated memory was 140.0 MB in the beginning and 550.0 MB in the end (delta: 410.0 MB). Free memory was 83.4 MB in the beginning and 446.3 MB in the end (delta: -362.9 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:37,460 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:41:37,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1107.90 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 83.2 MB in the beginning and 133.6 MB in the end (delta: -50.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:37,463 INFO L168 Benchmark]: Boogie Preprocessor took 219.73 ms. Allocated memory is still 201.3 MB. Free memory was 133.6 MB in the beginning and 124.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:37,466 INFO L168 Benchmark]: RCFGBuilder took 2304.76 ms. Allocated memory was 201.3 MB in the beginning and 263.2 MB in the end (delta: 61.9 MB). Free memory was 124.5 MB in the beginning and 161.0 MB in the end (delta: -36.4 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:37,470 INFO L168 Benchmark]: TraceAbstraction took 12847.10 ms. Allocated memory was 263.2 MB in the beginning and 550.0 MB in the end (delta: 286.8 MB). Free memory was 161.0 MB in the beginning and 446.3 MB in the end (delta: -285.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:37,475 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1107.90 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 83.2 MB in the beginning and 133.6 MB in the end (delta: -50.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 219.73 ms. Allocated memory is still 201.3 MB. Free memory was 133.6 MB in the beginning and 124.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2304.76 ms. Allocated memory was 201.3 MB in the beginning and 263.2 MB in the end (delta: 61.9 MB). Free memory was 124.5 MB in the beginning and 161.0 MB in the end (delta: -36.4 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12847.10 ms. Allocated memory was 263.2 MB in the beginning and 550.0 MB in the end (delta: 286.8 MB). Free memory was 161.0 MB in the beginning and 446.3 MB in the end (delta: -285.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2952]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 114 procedures, 778 locations, 1 error locations. SAFE Result, 12.7s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 7.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6390 SDtfs, 3002 SDslu, 33892 SDs, 0 SdLazy, 4780 SolverSat, 567 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 645 GetRequests, 540 SyntacticMatches, 2 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3195occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.2556818181818183 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 48 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1690 NumberOfCodeBlocks, 1590 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1855 ConstructedInterpolants, 0 QuantifiedInterpolants, 464762 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2120 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 364/370 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...