/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/email_spec8_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 09:10:58,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 09:10:58,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 09:10:58,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 09:10:58,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 09:10:58,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 09:10:58,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 09:10:58,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 09:10:58,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 09:10:58,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 09:10:58,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 09:10:58,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 09:10:58,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 09:10:58,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 09:10:58,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 09:10:58,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 09:10:58,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 09:10:58,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 09:10:58,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 09:10:58,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 09:10:58,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 09:10:58,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 09:10:58,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 09:10:58,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 09:10:58,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 09:10:58,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 09:10:58,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 09:10:58,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 09:10:58,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 09:10:58,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 09:10:58,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 09:10:58,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 09:10:58,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 09:10:58,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 09:10:58,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 09:10:58,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 09:10:58,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 09:10:58,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 09:10:58,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 09:10:58,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 09:10:58,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 09:10:58,535 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 09:10:58,589 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 09:10:58,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 09:10:58,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 09:10:58,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 09:10:58,595 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 09:10:58,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 09:10:58,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 09:10:58,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 09:10:58,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 09:10:58,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 09:10:58,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 09:10:58,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 09:10:58,598 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 09:10:58,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 09:10:58,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 09:10:58,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 09:10:58,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 09:10:58,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:10:58,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 09:10:58,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 09:10:58,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 09:10:58,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 09:10:58,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 09:10:58,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 09:10:58,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 09:10:58,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 09:10:59,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 09:10:59,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 09:10:59,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 09:10:59,054 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 09:10:59,055 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 09:10:59,056 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec8_product31.cil.c [2020-12-23 09:10:59,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6a9fa9ebb/3530eba117ec416c96107142580e20ec/FLAG4ce823312 [2020-12-23 09:11:00,005 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 09:11:00,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.cil.c [2020-12-23 09:11:00,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6a9fa9ebb/3530eba117ec416c96107142580e20ec/FLAG4ce823312 [2020-12-23 09:11:00,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6a9fa9ebb/3530eba117ec416c96107142580e20ec [2020-12-23 09:11:00,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 09:11:00,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 09:11:00,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 09:11:00,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 09:11:00,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 09:11:00,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:11:00" (1/1) ... [2020-12-23 09:11:00,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29adee0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:00, skipping insertion in model container [2020-12-23 09:11:00,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:11:00" (1/1) ... [2020-12-23 09:11:00,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 09:11:00,356 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_name0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_name1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_name2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_outbuffer0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_outbuffer1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_outbuffer2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientAddressBook_size0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientAddressBook_size1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientAddressBook_size2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~size~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Alias0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Alias1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Alias2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Alias0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Alias1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Alias2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Alias0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Alias1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Alias2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Address0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Address1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Address2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Address0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Address1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Address2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Address0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Address1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Address2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_autoResponse0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_autoResponse1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_autoResponse2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_privateKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_privateKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_privateKey2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientKeyring_size0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientKeyring_size1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientKeyring_size2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~size~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_User0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_User1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_User0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_User1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_User0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_User1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_PublicKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_PublicKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_PublicKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_PublicKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_PublicKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_PublicKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_forwardReceiver0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_forwardReceiver1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_forwardReceiver2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_idCounter0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_idCounter1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_idCounter2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~cf~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_15~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_16~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~1,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~1,] left hand side expression in assignment: lhs: VariableLHS[~excep~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~2,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~new~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_18~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~2,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_20~0,] left hand side expression in assignment: lhs: VariableLHS[~next~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_21~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~3,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~count,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp16~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_22~0,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mem_23~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp17~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~4,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~18,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~5,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~4,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~19,] [2020-12-23 09:11:00,816 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.cil.c[36348,36361] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~20,] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~6,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~7,] left hand side expression in assignment: lhs: VariableLHS[~tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~21,] left hand side expression in assignment: lhs: VariableLHS[~tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~22,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~22,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~23,] left hand side expression in assignment: lhs: VariableLHS[~msg~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~24,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Email_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~25,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~25,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~26,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~26,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~26,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_id0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~27,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~27,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~27,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_from0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_from1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_to0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_to1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_subject0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_subject1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_body0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_body1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~31,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~31,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~31,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isEncrypted0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isEncrypted1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_encryptionKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_encryptionKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSigned0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSigned1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_signKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_signKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSignatureVerified0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSignatureVerified1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~36,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~37,] left hand side expression in assignment: lhs: VariableLHS[~__utac__ad__arg1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~10,] left hand side expression in assignment: lhs: VariableLHS[~tmp~11,] left hand side expression in assignment: lhs: VariableLHS[~tmp~12,] left hand side expression in assignment: lhs: VariableLHS[~receiver~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~pubkey~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~13,] left hand side expression in assignment: lhs: VariableLHS[~fwreceiver~0,] left hand side expression in assignment: lhs: VariableLHS[~__utac__ad__arg1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~14,] left hand side expression in assignment: lhs: VariableLHS[~privkey~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~15,] left hand side expression in assignment: lhs: VariableLHS[~client~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~38,] left hand side expression in assignment: lhs: VariableLHS[~tmp~16,] left hand side expression in assignment: lhs: VariableLHS[~email~0,] left hand side expression in assignment: lhs: VariableLHS[~queue_empty~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~queued_message~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~queued_client~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~tmp~17,] left hand side expression in assignment: lhs: VariableLHS[~privkey~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~18,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~2,] left hand side expression in assignment: lhs: VariableLHS[~pubkey~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp~19,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~6,] left hand side expression in assignment: lhs: VariableLHS[~bob~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp1~0,] left hand side expression in assignment: lhs: VariableLHS[~rjh~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp2~0,] left hand side expression in assignment: lhs: VariableLHS[~chuck~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp~20,] left hand side expression in assignment: lhs: VariableLHS[~tmp~21,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~7,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~6,] left hand side expression in assignment: lhs: VariableLHS[~op1~0,] left hand side expression in assignment: lhs: VariableLHS[~op2~0,] left hand side expression in assignment: lhs: VariableLHS[~op3~0,] left hand side expression in assignment: lhs: VariableLHS[~op4~0,] left hand side expression in assignment: lhs: VariableLHS[~op5~0,] left hand side expression in assignment: lhs: VariableLHS[~op6~0,] left hand side expression in assignment: lhs: VariableLHS[~op7~0,] left hand side expression in assignment: lhs: VariableLHS[~op8~0,] left hand side expression in assignment: lhs: VariableLHS[~op9~0,] left hand side expression in assignment: lhs: VariableLHS[~op10~0,] left hand side expression in assignment: lhs: VariableLHS[~op11~0,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~op1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~op2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~0,] left hand side expression in assignment: lhs: VariableLHS[~op3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~0,] left hand side expression in assignment: lhs: VariableLHS[~op4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~op5~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~1,] left hand side expression in assignment: lhs: VariableLHS[~op6~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~1,] left hand side expression in assignment: lhs: VariableLHS[~op7~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~3,] left hand side expression in assignment: lhs: VariableLHS[~op8~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~4,] left hand side expression in assignment: lhs: VariableLHS[~op9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~8,] left hand side expression in assignment: lhs: VariableLHS[~op10~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~22,] left hand side expression in assignment: lhs: VariableLHS[~op11~0,] left hand side expression in assignment: lhs: VariableLHS[~in_encrypted~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp2~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~6,] left hand side expression in assignment: lhs: VariableLHS[~tmp~23,] [2020-12-23 09:11:01,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:11:01,052 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_name0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_name1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_name2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_outbuffer0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_outbuffer1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_outbuffer2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientAddressBook_size0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientAddressBook_size1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientAddressBook_size2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~size~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Alias0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Alias1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Alias2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Alias0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Alias1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Alias2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Alias0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Alias1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Alias2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Address0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Address1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook0_Address2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Address0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Address1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook1_Address2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Address0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Address1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_AddressBook2_Address2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_autoResponse0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_autoResponse1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_autoResponse2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_privateKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_privateKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_privateKey2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientKeyring_size0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientKeyring_size1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_ClientKeyring_size2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~size~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_User0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_User1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_User0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_User1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_User0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_User1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~14,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_PublicKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring0_PublicKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_PublicKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring1_PublicKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_PublicKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_Client_Keyring2_PublicKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~15,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_forwardReceiver0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_forwardReceiver1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_forwardReceiver2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~16,] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_idCounter0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_idCounter1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_client_idCounter2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~cf~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_15~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_16~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~1,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~1,] left hand side expression in assignment: lhs: VariableLHS[~excep~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~2,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~new~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_18~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~2,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_20~0,] left hand side expression in assignment: lhs: VariableLHS[~next~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_21~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~3,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~count,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp16~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_22~0,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mem_23~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp17~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~17,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~4,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~18,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~5,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~4,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~19,] [2020-12-23 09:11:01,126 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.cil.c[36348,36361] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~20,] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~6,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~7,] left hand side expression in assignment: lhs: VariableLHS[~tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~21,] left hand side expression in assignment: lhs: VariableLHS[~tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~22,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~22,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~23,] left hand side expression in assignment: lhs: VariableLHS[~msg~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~24,] left hand side expression in assignment: lhs: VariableLHS[~__ste_Email_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~25,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~25,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~26,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~26,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~26,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_id0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~27,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~27,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~27,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_from0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_from1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~28,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_to0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_to1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~29,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_subject0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_subject1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~30,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_body0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_body1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~31,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~31,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~31,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isEncrypted0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isEncrypted1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~32,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_encryptionKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_encryptionKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~33,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSigned0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSigned1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~34,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_signKey0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_signKey1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~35,] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSignatureVerified0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__ste_email_isSignatureVerified1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~36,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~37,] left hand side expression in assignment: lhs: VariableLHS[~__utac__ad__arg1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~10,] left hand side expression in assignment: lhs: VariableLHS[~tmp~11,] left hand side expression in assignment: lhs: VariableLHS[~tmp~12,] left hand side expression in assignment: lhs: VariableLHS[~receiver~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~pubkey~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~13,] left hand side expression in assignment: lhs: VariableLHS[~fwreceiver~0,] left hand side expression in assignment: lhs: VariableLHS[~__utac__ad__arg1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~14,] left hand side expression in assignment: lhs: VariableLHS[~privkey~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~15,] left hand side expression in assignment: lhs: VariableLHS[~client~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~38,] left hand side expression in assignment: lhs: VariableLHS[~tmp~16,] left hand side expression in assignment: lhs: VariableLHS[~email~0,] left hand side expression in assignment: lhs: VariableLHS[~queue_empty~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~queued_message~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~queued_client~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~39,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~40,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~41,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~42,] left hand side expression in assignment: lhs: VariableLHS[~tmp~17,] left hand side expression in assignment: lhs: VariableLHS[~privkey~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~18,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~2,] left hand side expression in assignment: lhs: VariableLHS[~pubkey~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp~19,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~6,] left hand side expression in assignment: lhs: VariableLHS[~bob~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp1~0,] left hand side expression in assignment: lhs: VariableLHS[~rjh~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp2~0,] left hand side expression in assignment: lhs: VariableLHS[~chuck~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp~20,] left hand side expression in assignment: lhs: VariableLHS[~tmp~21,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~7,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~6,] left hand side expression in assignment: lhs: VariableLHS[~op1~0,] left hand side expression in assignment: lhs: VariableLHS[~op2~0,] left hand side expression in assignment: lhs: VariableLHS[~op3~0,] left hand side expression in assignment: lhs: VariableLHS[~op4~0,] left hand side expression in assignment: lhs: VariableLHS[~op5~0,] left hand side expression in assignment: lhs: VariableLHS[~op6~0,] left hand side expression in assignment: lhs: VariableLHS[~op7~0,] left hand side expression in assignment: lhs: VariableLHS[~op8~0,] left hand side expression in assignment: lhs: VariableLHS[~op9~0,] left hand side expression in assignment: lhs: VariableLHS[~op10~0,] left hand side expression in assignment: lhs: VariableLHS[~op11~0,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~op1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~op2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~0,] left hand side expression in assignment: lhs: VariableLHS[~op3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~0,] left hand side expression in assignment: lhs: VariableLHS[~op4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~op5~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~1,] left hand side expression in assignment: lhs: VariableLHS[~op6~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~1,] left hand side expression in assignment: lhs: VariableLHS[~op7~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~3,] left hand side expression in assignment: lhs: VariableLHS[~op8~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~4,] left hand side expression in assignment: lhs: VariableLHS[~op9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~8,] left hand side expression in assignment: lhs: VariableLHS[~op10~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~22,] left hand side expression in assignment: lhs: VariableLHS[~op11~0,] left hand side expression in assignment: lhs: VariableLHS[~in_encrypted~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp2~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp3~6,] left hand side expression in assignment: lhs: VariableLHS[~tmp~23,] [2020-12-23 09:11:01,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:11:01,278 INFO L208 MainTranslator]: Completed translation [2020-12-23 09:11:01,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:01 WrapperNode [2020-12-23 09:11:01,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 09:11:01,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 09:11:01,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 09:11:01,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 09:11:01,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:01" (1/1) ... [2020-12-23 09:11:01,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:01" (1/1) ... [2020-12-23 09:11:01,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 09:11:01,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 09:11:01,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 09:11:01,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 09:11:01,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:01" (1/1) ... [2020-12-23 09:11:01,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:01" (1/1) ... [2020-12-23 09:11:01,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:01" (1/1) ... [2020-12-23 09:11:01,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:01" (1/1) ... [2020-12-23 09:11:01,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:01" (1/1) ... [2020-12-23 09:11:01,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:01" (1/1) ... [2020-12-23 09:11:01,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:01" (1/1) ... [2020-12-23 09:11:01,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 09:11:01,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 09:11:01,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 09:11:01,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 09:11:01,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:11:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-12-23 09:11:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 09:11:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 09:11:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 09:11:01,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 09:11:04,985 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 09:11:04,985 INFO L299 CfgBuilder]: Removed 379 assume(true) statements. [2020-12-23 09:11:04,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:11:04 BoogieIcfgContainer [2020-12-23 09:11:04,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 09:11:04,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 09:11:04,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 09:11:04,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 09:11:04,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:11:00" (1/3) ... [2020-12-23 09:11:04,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8a18d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:11:04, skipping insertion in model container [2020-12-23 09:11:04,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:01" (2/3) ... [2020-12-23 09:11:04,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8a18d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:11:04, skipping insertion in model container [2020-12-23 09:11:04,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:11:04" (3/3) ... [2020-12-23 09:11:04,997 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec8_product31.cil.c [2020-12-23 09:11:05,004 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 09:11:05,010 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-23 09:11:05,031 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-23 09:11:05,064 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 09:11:05,064 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 09:11:05,064 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 09:11:05,064 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 09:11:05,064 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 09:11:05,065 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 09:11:05,065 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 09:11:05,065 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 09:11:05,103 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states. [2020-12-23 09:11:05,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-23 09:11:05,120 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:05,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:05,122 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:05,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:05,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1606635459, now seen corresponding path program 1 times [2020-12-23 09:11:05,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:05,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100447952] [2020-12-23 09:11:05,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:05,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100447952] [2020-12-23 09:11:05,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:05,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:11:05,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111794767] [2020-12-23 09:11:05,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:11:05,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:05,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:11:05,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:11:05,594 INFO L87 Difference]: Start difference. First operand 567 states. Second operand 3 states. [2020-12-23 09:11:05,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:05,856 INFO L93 Difference]: Finished difference Result 1666 states and 2876 transitions. [2020-12-23 09:11:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:11:05,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-12-23 09:11:05,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:05,912 INFO L225 Difference]: With dead ends: 1666 [2020-12-23 09:11:05,913 INFO L226 Difference]: Without dead ends: 888 [2020-12-23 09:11:05,931 INFO L677 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 [2020-12-23 09:11:05,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2020-12-23 09:11:06,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 453. [2020-12-23 09:11:06,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-12-23 09:11:06,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 783 transitions. [2020-12-23 09:11:06,038 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 783 transitions. Word has length 45 [2020-12-23 09:11:06,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:06,039 INFO L481 AbstractCegarLoop]: Abstraction has 453 states and 783 transitions. [2020-12-23 09:11:06,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:11:06,039 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 783 transitions. [2020-12-23 09:11:06,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-23 09:11:06,046 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:06,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:06,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 09:11:06,046 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:06,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:06,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1641619126, now seen corresponding path program 1 times [2020-12-23 09:11:06,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:06,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998349510] [2020-12-23 09:11:06,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:06,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:06,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998349510] [2020-12-23 09:11:06,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:06,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:11:06,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987797088] [2020-12-23 09:11:06,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:11:06,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:06,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:11:06,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:11:06,284 INFO L87 Difference]: Start difference. First operand 453 states and 783 transitions. Second operand 5 states. [2020-12-23 09:11:06,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:06,499 INFO L93 Difference]: Finished difference Result 1308 states and 2265 transitions. [2020-12-23 09:11:06,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 09:11:06,500 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-12-23 09:11:06,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:06,506 INFO L225 Difference]: With dead ends: 1308 [2020-12-23 09:11:06,506 INFO L226 Difference]: Without dead ends: 874 [2020-12-23 09:11:06,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 09:11:06,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2020-12-23 09:11:06,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 453. [2020-12-23 09:11:06,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-12-23 09:11:06,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 782 transitions. [2020-12-23 09:11:06,540 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 782 transitions. Word has length 47 [2020-12-23 09:11:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:06,540 INFO L481 AbstractCegarLoop]: Abstraction has 453 states and 782 transitions. [2020-12-23 09:11:06,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:11:06,540 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 782 transitions. [2020-12-23 09:11:06,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-23 09:11:06,544 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:06,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:06,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 09:11:06,545 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:06,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:06,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1741248093, now seen corresponding path program 1 times [2020-12-23 09:11:06,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:06,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341709435] [2020-12-23 09:11:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:06,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:06,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341709435] [2020-12-23 09:11:06,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:06,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:11:06,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655067933] [2020-12-23 09:11:06,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:11:06,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:06,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:11:06,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:11:06,661 INFO L87 Difference]: Start difference. First operand 453 states and 782 transitions. Second operand 3 states. [2020-12-23 09:11:06,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:06,711 INFO L93 Difference]: Finished difference Result 888 states and 1538 transitions. [2020-12-23 09:11:06,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:11:06,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-23 09:11:06,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:06,720 INFO L225 Difference]: With dead ends: 888 [2020-12-23 09:11:06,721 INFO L226 Difference]: Without dead ends: 458 [2020-12-23 09:11:06,722 INFO L677 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 [2020-12-23 09:11:06,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-12-23 09:11:06,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 453. [2020-12-23 09:11:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-12-23 09:11:06,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 781 transitions. [2020-12-23 09:11:06,787 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 781 transitions. Word has length 48 [2020-12-23 09:11:06,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:06,794 INFO L481 AbstractCegarLoop]: Abstraction has 453 states and 781 transitions. [2020-12-23 09:11:06,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:11:06,795 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 781 transitions. [2020-12-23 09:11:06,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-23 09:11:06,799 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:06,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:06,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 09:11:06,800 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:06,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:06,800 INFO L82 PathProgramCache]: Analyzing trace with hash -65220393, now seen corresponding path program 1 times [2020-12-23 09:11:06,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:06,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010119712] [2020-12-23 09:11:06,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:06,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010119712] [2020-12-23 09:11:06,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:06,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:11:06,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084174971] [2020-12-23 09:11:06,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:11:06,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:06,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:11:06,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:11:06,950 INFO L87 Difference]: Start difference. First operand 453 states and 781 transitions. Second operand 3 states. [2020-12-23 09:11:07,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:07,006 INFO L93 Difference]: Finished difference Result 898 states and 1551 transitions. [2020-12-23 09:11:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:11:07,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2020-12-23 09:11:07,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:07,010 INFO L225 Difference]: With dead ends: 898 [2020-12-23 09:11:07,010 INFO L226 Difference]: Without dead ends: 453 [2020-12-23 09:11:07,012 INFO L677 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 [2020-12-23 09:11:07,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-12-23 09:11:07,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2020-12-23 09:11:07,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-12-23 09:11:07,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 779 transitions. [2020-12-23 09:11:07,034 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 779 transitions. Word has length 49 [2020-12-23 09:11:07,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:07,034 INFO L481 AbstractCegarLoop]: Abstraction has 453 states and 779 transitions. [2020-12-23 09:11:07,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:11:07,034 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 779 transitions. [2020-12-23 09:11:07,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-23 09:11:07,036 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:07,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:07,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 09:11:07,036 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:07,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:07,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1735348642, now seen corresponding path program 1 times [2020-12-23 09:11:07,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:07,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497112302] [2020-12-23 09:11:07,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:07,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:07,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497112302] [2020-12-23 09:11:07,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:07,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:11:07,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033072503] [2020-12-23 09:11:07,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:11:07,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:07,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:11:07,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:11:07,165 INFO L87 Difference]: Start difference. First operand 453 states and 779 transitions. Second operand 5 states. [2020-12-23 09:11:07,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:07,359 INFO L93 Difference]: Finished difference Result 1298 states and 2245 transitions. [2020-12-23 09:11:07,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:11:07,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-12-23 09:11:07,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:07,365 INFO L225 Difference]: With dead ends: 1298 [2020-12-23 09:11:07,365 INFO L226 Difference]: Without dead ends: 872 [2020-12-23 09:11:07,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:11:07,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-12-23 09:11:07,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 453. [2020-12-23 09:11:07,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-12-23 09:11:07,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 778 transitions. [2020-12-23 09:11:07,392 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 778 transitions. Word has length 50 [2020-12-23 09:11:07,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:07,392 INFO L481 AbstractCegarLoop]: Abstraction has 453 states and 778 transitions. [2020-12-23 09:11:07,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:11:07,392 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 778 transitions. [2020-12-23 09:11:07,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 09:11:07,393 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:07,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:07,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 09:11:07,394 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:07,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:07,395 INFO L82 PathProgramCache]: Analyzing trace with hash -256314721, now seen corresponding path program 1 times [2020-12-23 09:11:07,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:07,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560405045] [2020-12-23 09:11:07,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:07,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:07,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560405045] [2020-12-23 09:11:07,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:07,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:11:07,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979962341] [2020-12-23 09:11:07,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:11:07,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:07,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:11:07,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:11:07,474 INFO L87 Difference]: Start difference. First operand 453 states and 778 transitions. Second operand 5 states. [2020-12-23 09:11:07,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:07,693 INFO L93 Difference]: Finished difference Result 1303 states and 2250 transitions. [2020-12-23 09:11:07,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:11:07,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-12-23 09:11:07,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:07,699 INFO L225 Difference]: With dead ends: 1303 [2020-12-23 09:11:07,699 INFO L226 Difference]: Without dead ends: 877 [2020-12-23 09:11:07,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:11:07,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2020-12-23 09:11:07,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 453. [2020-12-23 09:11:07,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-12-23 09:11:07,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 777 transitions. [2020-12-23 09:11:07,729 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 777 transitions. Word has length 51 [2020-12-23 09:11:07,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:07,730 INFO L481 AbstractCegarLoop]: Abstraction has 453 states and 777 transitions. [2020-12-23 09:11:07,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:11:07,730 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 777 transitions. [2020-12-23 09:11:07,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 09:11:07,731 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:07,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:07,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 09:11:07,732 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:07,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:07,732 INFO L82 PathProgramCache]: Analyzing trace with hash -114337145, now seen corresponding path program 1 times [2020-12-23 09:11:07,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:07,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784545597] [2020-12-23 09:11:07,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:07,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:07,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784545597] [2020-12-23 09:11:07,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:07,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:11:07,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224791570] [2020-12-23 09:11:07,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:11:07,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:07,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:11:07,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:11:07,800 INFO L87 Difference]: Start difference. First operand 453 states and 777 transitions. Second operand 3 states. [2020-12-23 09:11:07,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:07,834 INFO L93 Difference]: Finished difference Result 668 states and 1130 transitions. [2020-12-23 09:11:07,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:11:07,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-12-23 09:11:07,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:07,838 INFO L225 Difference]: With dead ends: 668 [2020-12-23 09:11:07,838 INFO L226 Difference]: Without dead ends: 456 [2020-12-23 09:11:07,839 INFO L677 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 [2020-12-23 09:11:07,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-12-23 09:11:07,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 455. [2020-12-23 09:11:07,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-12-23 09:11:07,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 779 transitions. [2020-12-23 09:11:07,866 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 779 transitions. Word has length 52 [2020-12-23 09:11:07,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:07,866 INFO L481 AbstractCegarLoop]: Abstraction has 455 states and 779 transitions. [2020-12-23 09:11:07,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:11:07,867 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 779 transitions. [2020-12-23 09:11:07,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-23 09:11:07,868 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:07,868 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-23 09:11:07,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 09:11:07,868 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:07,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:07,869 INFO L82 PathProgramCache]: Analyzing trace with hash 252835913, now seen corresponding path program 1 times [2020-12-23 09:11:07,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:07,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255033032] [2020-12-23 09:11:07,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:07,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255033032] [2020-12-23 09:11:07,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:07,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:11:07,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736639094] [2020-12-23 09:11:07,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:11:07,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:07,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:11:07,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:11:07,941 INFO L87 Difference]: Start difference. First operand 455 states and 779 transitions. Second operand 3 states. [2020-12-23 09:11:08,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:08,005 INFO L93 Difference]: Finished difference Result 1251 states and 2161 transitions. [2020-12-23 09:11:08,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:11:08,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-12-23 09:11:08,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:08,012 INFO L225 Difference]: With dead ends: 1251 [2020-12-23 09:11:08,012 INFO L226 Difference]: Without dead ends: 827 [2020-12-23 09:11:08,014 INFO L677 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 [2020-12-23 09:11:08,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2020-12-23 09:11:08,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 615. [2020-12-23 09:11:08,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-12-23 09:11:08,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 1072 transitions. [2020-12-23 09:11:08,054 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 1072 transitions. Word has length 58 [2020-12-23 09:11:08,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:08,055 INFO L481 AbstractCegarLoop]: Abstraction has 615 states and 1072 transitions. [2020-12-23 09:11:08,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:11:08,055 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 1072 transitions. [2020-12-23 09:11:08,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 09:11:08,056 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:08,056 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-23 09:11:08,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 09:11:08,058 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:08,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:08,059 INFO L82 PathProgramCache]: Analyzing trace with hash -233460470, now seen corresponding path program 1 times [2020-12-23 09:11:08,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:08,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419611738] [2020-12-23 09:11:08,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:08,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:08,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419611738] [2020-12-23 09:11:08,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968203089] [2020-12-23 09:11:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:11:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:08,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 09:11:08,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:11:08,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 09:11:08,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 09:11:08,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-23 09:11:08,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006531563] [2020-12-23 09:11:08,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:11:08,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:08,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:11:08,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:11:08,687 INFO L87 Difference]: Start difference. First operand 615 states and 1072 transitions. Second operand 3 states. [2020-12-23 09:11:08,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:08,774 INFO L93 Difference]: Finished difference Result 774 states and 1332 transitions. [2020-12-23 09:11:08,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:11:08,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-12-23 09:11:08,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:08,778 INFO L225 Difference]: With dead ends: 774 [2020-12-23 09:11:08,779 INFO L226 Difference]: Without dead ends: 609 [2020-12-23 09:11:08,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:11:08,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-12-23 09:11:08,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2020-12-23 09:11:08,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-12-23 09:11:08,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 1063 transitions. [2020-12-23 09:11:08,825 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 1063 transitions. Word has length 59 [2020-12-23 09:11:08,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:08,826 INFO L481 AbstractCegarLoop]: Abstraction has 609 states and 1063 transitions. [2020-12-23 09:11:08,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:11:08,826 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 1063 transitions. [2020-12-23 09:11:08,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-23 09:11:08,828 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:08,828 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-23 09:11:09,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-23 09:11:09,042 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:09,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:09,043 INFO L82 PathProgramCache]: Analyzing trace with hash -349115599, now seen corresponding path program 1 times [2020-12-23 09:11:09,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:09,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321506402] [2020-12-23 09:11:09,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:09,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321506402] [2020-12-23 09:11:09,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903379509] [2020-12-23 09:11:09,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:11:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:09,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 09:11:09,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:11:09,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:09,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 09:11:09,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-23 09:11:09,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406594476] [2020-12-23 09:11:09,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:11:09,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:09,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:11:09,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:11:09,801 INFO L87 Difference]: Start difference. First operand 609 states and 1063 transitions. Second operand 5 states. [2020-12-23 09:11:09,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:09,896 INFO L93 Difference]: Finished difference Result 1237 states and 2137 transitions. [2020-12-23 09:11:09,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:11:09,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-12-23 09:11:09,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:09,903 INFO L225 Difference]: With dead ends: 1237 [2020-12-23 09:11:09,903 INFO L226 Difference]: Without dead ends: 1031 [2020-12-23 09:11:09,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:11:09,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2020-12-23 09:11:09,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 823. [2020-12-23 09:11:09,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2020-12-23 09:11:09,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1453 transitions. [2020-12-23 09:11:09,969 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1453 transitions. Word has length 100 [2020-12-23 09:11:09,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:09,969 INFO L481 AbstractCegarLoop]: Abstraction has 823 states and 1453 transitions. [2020-12-23 09:11:09,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:11:09,970 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1453 transitions. [2020-12-23 09:11:09,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-23 09:11:09,972 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:09,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:10,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 09:11:10,187 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:10,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:10,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1877230340, now seen corresponding path program 1 times [2020-12-23 09:11:10,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:10,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596577293] [2020-12-23 09:11:10,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:10,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:10,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596577293] [2020-12-23 09:11:10,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:10,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:11:10,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667663146] [2020-12-23 09:11:10,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:11:10,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:10,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:11:10,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:11:10,321 INFO L87 Difference]: Start difference. First operand 823 states and 1453 transitions. Second operand 3 states. [2020-12-23 09:11:10,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:10,436 INFO L93 Difference]: Finished difference Result 2135 states and 3783 transitions. [2020-12-23 09:11:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:11:10,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-12-23 09:11:10,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:10,447 INFO L225 Difference]: With dead ends: 2135 [2020-12-23 09:11:10,447 INFO L226 Difference]: Without dead ends: 1401 [2020-12-23 09:11:10,451 INFO L677 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 [2020-12-23 09:11:10,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2020-12-23 09:11:10,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1195. [2020-12-23 09:11:10,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1195 states. [2020-12-23 09:11:10,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 2131 transitions. [2020-12-23 09:11:10,550 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 2131 transitions. Word has length 106 [2020-12-23 09:11:10,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:10,551 INFO L481 AbstractCegarLoop]: Abstraction has 1195 states and 2131 transitions. [2020-12-23 09:11:10,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:11:10,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 2131 transitions. [2020-12-23 09:11:10,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-23 09:11:10,555 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:10,555 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-23 09:11:10,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 09:11:10,556 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:10,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:10,557 INFO L82 PathProgramCache]: Analyzing trace with hash 383060916, now seen corresponding path program 2 times [2020-12-23 09:11:10,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:10,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33339487] [2020-12-23 09:11:10,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:10,659 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:10,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33339487] [2020-12-23 09:11:10,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:10,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:11:10,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862034595] [2020-12-23 09:11:10,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:11:10,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:10,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:11:10,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:11:10,661 INFO L87 Difference]: Start difference. First operand 1195 states and 2131 transitions. Second operand 5 states. [2020-12-23 09:11:10,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:10,811 INFO L93 Difference]: Finished difference Result 2349 states and 4171 transitions. [2020-12-23 09:11:10,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:11:10,812 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-12-23 09:11:10,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:10,823 INFO L225 Difference]: With dead ends: 2349 [2020-12-23 09:11:10,823 INFO L226 Difference]: Without dead ends: 1401 [2020-12-23 09:11:10,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:11:10,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2020-12-23 09:11:10,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1195. [2020-12-23 09:11:10,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1195 states. [2020-12-23 09:11:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 2129 transitions. [2020-12-23 09:11:10,941 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 2129 transitions. Word has length 107 [2020-12-23 09:11:10,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:10,941 INFO L481 AbstractCegarLoop]: Abstraction has 1195 states and 2129 transitions. [2020-12-23 09:11:10,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:11:10,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 2129 transitions. [2020-12-23 09:11:10,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-23 09:11:10,948 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:10,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:10,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 09:11:10,951 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:10,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:10,951 INFO L82 PathProgramCache]: Analyzing trace with hash 606470291, now seen corresponding path program 1 times [2020-12-23 09:11:10,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:10,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923487335] [2020-12-23 09:11:10,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:11,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923487335] [2020-12-23 09:11:11,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:11,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:11:11,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230857686] [2020-12-23 09:11:11,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:11:11,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:11,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:11:11,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:11:11,137 INFO L87 Difference]: Start difference. First operand 1195 states and 2129 transitions. Second operand 3 states. [2020-12-23 09:11:11,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:11,336 INFO L93 Difference]: Finished difference Result 3223 states and 5766 transitions. [2020-12-23 09:11:11,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:11:11,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-23 09:11:11,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:11,354 INFO L225 Difference]: With dead ends: 3223 [2020-12-23 09:11:11,354 INFO L226 Difference]: Without dead ends: 2125 [2020-12-23 09:11:11,358 INFO L677 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 [2020-12-23 09:11:11,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2020-12-23 09:11:11,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 1919. [2020-12-23 09:11:11,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1919 states. [2020-12-23 09:11:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1919 states to 1919 states and 3448 transitions. [2020-12-23 09:11:11,529 INFO L78 Accepts]: Start accepts. Automaton has 1919 states and 3448 transitions. Word has length 107 [2020-12-23 09:11:11,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:11,529 INFO L481 AbstractCegarLoop]: Abstraction has 1919 states and 3448 transitions. [2020-12-23 09:11:11,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:11:11,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1919 states and 3448 transitions. [2020-12-23 09:11:11,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-23 09:11:11,535 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:11,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:11,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 09:11:11,536 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:11,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:11,537 INFO L82 PathProgramCache]: Analyzing trace with hash -7966906, now seen corresponding path program 1 times [2020-12-23 09:11:11,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:11,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965659920] [2020-12-23 09:11:11,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:11,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:11,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965659920] [2020-12-23 09:11:11,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:11,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:11:11,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712198131] [2020-12-23 09:11:11,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:11:11,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:11,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:11:11,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:11:11,641 INFO L87 Difference]: Start difference. First operand 1919 states and 3448 transitions. Second operand 3 states. [2020-12-23 09:11:11,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:11,886 INFO L93 Difference]: Finished difference Result 5131 states and 9242 transitions. [2020-12-23 09:11:11,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:11:11,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2020-12-23 09:11:11,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:11,906 INFO L225 Difference]: With dead ends: 5131 [2020-12-23 09:11:11,906 INFO L226 Difference]: Without dead ends: 3343 [2020-12-23 09:11:11,911 INFO L677 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 [2020-12-23 09:11:11,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3343 states. [2020-12-23 09:11:12,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3343 to 3137. [2020-12-23 09:11:12,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3137 states. [2020-12-23 09:11:12,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 5661 transitions. [2020-12-23 09:11:12,125 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 5661 transitions. Word has length 108 [2020-12-23 09:11:12,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:12,125 INFO L481 AbstractCegarLoop]: Abstraction has 3137 states and 5661 transitions. [2020-12-23 09:11:12,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:11:12,125 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 5661 transitions. [2020-12-23 09:11:12,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 09:11:12,137 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:12,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:12,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 09:11:12,139 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:12,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:12,139 INFO L82 PathProgramCache]: Analyzing trace with hash -644682780, now seen corresponding path program 1 times [2020-12-23 09:11:12,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:12,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230592380] [2020-12-23 09:11:12,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:12,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230592380] [2020-12-23 09:11:12,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:12,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:11:12,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674121578] [2020-12-23 09:11:12,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:11:12,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:12,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:11:12,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:11:12,224 INFO L87 Difference]: Start difference. First operand 3137 states and 5661 transitions. Second operand 3 states. [2020-12-23 09:11:12,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:12,591 INFO L93 Difference]: Finished difference Result 8501 states and 15364 transitions. [2020-12-23 09:11:12,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:11:12,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-12-23 09:11:12,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:12,624 INFO L225 Difference]: With dead ends: 8501 [2020-12-23 09:11:12,624 INFO L226 Difference]: Without dead ends: 5529 [2020-12-23 09:11:12,633 INFO L677 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 [2020-12-23 09:11:12,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5529 states. [2020-12-23 09:11:13,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5529 to 5323. [2020-12-23 09:11:13,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5323 states. [2020-12-23 09:11:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 9622 transitions. [2020-12-23 09:11:13,087 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 9622 transitions. Word has length 109 [2020-12-23 09:11:13,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:13,088 INFO L481 AbstractCegarLoop]: Abstraction has 5323 states and 9622 transitions. [2020-12-23 09:11:13,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:11:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 9622 transitions. [2020-12-23 09:11:13,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-23 09:11:13,106 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:13,107 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:13,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 09:11:13,107 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:13,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:13,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1810874360, now seen corresponding path program 1 times [2020-12-23 09:11:13,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:13,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319028765] [2020-12-23 09:11:13,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:13,338 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 09:11:13,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319028765] [2020-12-23 09:11:13,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:13,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:11:13,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679287814] [2020-12-23 09:11:13,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:11:13,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:13,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:11:13,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:11:13,342 INFO L87 Difference]: Start difference. First operand 5323 states and 9622 transitions. Second operand 5 states. [2020-12-23 09:11:14,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:14,247 INFO L93 Difference]: Finished difference Result 15188 states and 27483 transitions. [2020-12-23 09:11:14,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:11:14,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-12-23 09:11:14,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:14,297 INFO L225 Difference]: With dead ends: 15188 [2020-12-23 09:11:14,297 INFO L226 Difference]: Without dead ends: 10112 [2020-12-23 09:11:14,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 09:11:14,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10112 states. [2020-12-23 09:11:14,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10112 to 5323. [2020-12-23 09:11:14,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5323 states. [2020-12-23 09:11:14,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 9572 transitions. [2020-12-23 09:11:14,745 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 9572 transitions. Word has length 110 [2020-12-23 09:11:14,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:14,745 INFO L481 AbstractCegarLoop]: Abstraction has 5323 states and 9572 transitions. [2020-12-23 09:11:14,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:11:14,745 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 9572 transitions. [2020-12-23 09:11:14,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-23 09:11:14,758 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:14,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:14,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 09:11:14,759 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:14,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:14,760 INFO L82 PathProgramCache]: Analyzing trace with hash -614440777, now seen corresponding path program 1 times [2020-12-23 09:11:14,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:14,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860587596] [2020-12-23 09:11:14,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:14,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:11:14,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860587596] [2020-12-23 09:11:14,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:14,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:11:14,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574274975] [2020-12-23 09:11:14,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:11:14,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:14,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:11:14,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:11:14,851 INFO L87 Difference]: Start difference. First operand 5323 states and 9572 transitions. Second operand 3 states. [2020-12-23 09:11:15,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:15,469 INFO L93 Difference]: Finished difference Result 15385 states and 27711 transitions. [2020-12-23 09:11:15,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:11:15,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2020-12-23 09:11:15,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:15,502 INFO L225 Difference]: With dead ends: 15385 [2020-12-23 09:11:15,502 INFO L226 Difference]: Without dead ends: 10235 [2020-12-23 09:11:15,514 INFO L677 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 [2020-12-23 09:11:15,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10235 states. [2020-12-23 09:11:16,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10235 to 10029. [2020-12-23 09:11:16,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10029 states. [2020-12-23 09:11:16,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10029 states to 10029 states and 18053 transitions. [2020-12-23 09:11:16,182 INFO L78 Accepts]: Start accepts. Automaton has 10029 states and 18053 transitions. Word has length 110 [2020-12-23 09:11:16,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:16,182 INFO L481 AbstractCegarLoop]: Abstraction has 10029 states and 18053 transitions. [2020-12-23 09:11:16,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:11:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 10029 states and 18053 transitions. [2020-12-23 09:11:16,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-23 09:11:16,270 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:16,270 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:16,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 09:11:16,270 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:16,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:16,271 INFO L82 PathProgramCache]: Analyzing trace with hash -676748605, now seen corresponding path program 1 times [2020-12-23 09:11:16,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:16,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451865567] [2020-12-23 09:11:16,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:11:16,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451865567] [2020-12-23 09:11:16,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:16,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 09:11:16,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467643282] [2020-12-23 09:11:16,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 09:11:16,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:16,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 09:11:16,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 09:11:16,550 INFO L87 Difference]: Start difference. First operand 10029 states and 18053 transitions. Second operand 9 states. [2020-12-23 09:11:18,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:18,719 INFO L93 Difference]: Finished difference Result 20901 states and 37454 transitions. [2020-12-23 09:11:18,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-23 09:11:18,720 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-12-23 09:11:18,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:18,784 INFO L225 Difference]: With dead ends: 20901 [2020-12-23 09:11:18,785 INFO L226 Difference]: Without dead ends: 20726 [2020-12-23 09:11:18,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2020-12-23 09:11:18,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20726 states. [2020-12-23 09:11:20,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20726 to 19859. [2020-12-23 09:11:20,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19859 states. [2020-12-23 09:11:20,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19859 states to 19859 states and 35772 transitions. [2020-12-23 09:11:20,190 INFO L78 Accepts]: Start accepts. Automaton has 19859 states and 35772 transitions. Word has length 111 [2020-12-23 09:11:20,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:20,191 INFO L481 AbstractCegarLoop]: Abstraction has 19859 states and 35772 transitions. [2020-12-23 09:11:20,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 09:11:20,191 INFO L276 IsEmpty]: Start isEmpty. Operand 19859 states and 35772 transitions. [2020-12-23 09:11:20,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-23 09:11:20,234 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:20,234 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:20,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 09:11:20,235 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:20,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:20,235 INFO L82 PathProgramCache]: Analyzing trace with hash 817802767, now seen corresponding path program 1 times [2020-12-23 09:11:20,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:20,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608966117] [2020-12-23 09:11:20,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:20,313 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:11:20,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608966117] [2020-12-23 09:11:20,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:20,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:11:20,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247690762] [2020-12-23 09:11:20,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:11:20,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:20,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:11:20,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:11:20,316 INFO L87 Difference]: Start difference. First operand 19859 states and 35772 transitions. Second operand 4 states. [2020-12-23 09:11:21,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:21,439 INFO L93 Difference]: Finished difference Result 20164 states and 36266 transitions. [2020-12-23 09:11:21,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:11:21,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2020-12-23 09:11:21,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:21,537 INFO L225 Difference]: With dead ends: 20164 [2020-12-23 09:11:21,537 INFO L226 Difference]: Without dead ends: 19963 [2020-12-23 09:11:21,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:11:21,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19963 states. [2020-12-23 09:11:22,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19963 to 19858. [2020-12-23 09:11:22,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19858 states. [2020-12-23 09:11:22,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19858 states to 19858 states and 35768 transitions. [2020-12-23 09:11:22,843 INFO L78 Accepts]: Start accepts. Automaton has 19858 states and 35768 transitions. Word has length 112 [2020-12-23 09:11:22,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:22,843 INFO L481 AbstractCegarLoop]: Abstraction has 19858 states and 35768 transitions. [2020-12-23 09:11:22,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:11:22,843 INFO L276 IsEmpty]: Start isEmpty. Operand 19858 states and 35768 transitions. [2020-12-23 09:11:22,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-23 09:11:22,889 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:22,889 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:22,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 09:11:22,890 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:22,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:22,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1035903757, now seen corresponding path program 1 times [2020-12-23 09:11:22,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:22,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486730437] [2020-12-23 09:11:22,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:23,140 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:11:23,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486730437] [2020-12-23 09:11:23,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:23,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 09:11:23,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130715152] [2020-12-23 09:11:23,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 09:11:23,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:23,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 09:11:23,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:11:23,143 INFO L87 Difference]: Start difference. First operand 19858 states and 35768 transitions. Second operand 7 states. [2020-12-23 09:11:24,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:24,415 INFO L93 Difference]: Finished difference Result 20347 states and 36555 transitions. [2020-12-23 09:11:24,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 09:11:24,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-12-23 09:11:24,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:24,457 INFO L225 Difference]: With dead ends: 20347 [2020-12-23 09:11:24,458 INFO L226 Difference]: Without dead ends: 20015 [2020-12-23 09:11:24,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-12-23 09:11:24,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20015 states. [2020-12-23 09:11:25,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20015 to 19846. [2020-12-23 09:11:25,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19846 states. [2020-12-23 09:11:25,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19846 states to 19846 states and 35741 transitions. [2020-12-23 09:11:25,732 INFO L78 Accepts]: Start accepts. Automaton has 19846 states and 35741 transitions. Word has length 113 [2020-12-23 09:11:25,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:25,733 INFO L481 AbstractCegarLoop]: Abstraction has 19846 states and 35741 transitions. [2020-12-23 09:11:25,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 09:11:25,733 INFO L276 IsEmpty]: Start isEmpty. Operand 19846 states and 35741 transitions. [2020-12-23 09:11:25,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-23 09:11:25,766 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:25,767 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:25,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 09:11:25,767 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:25,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:25,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1735556891, now seen corresponding path program 1 times [2020-12-23 09:11:25,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:25,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317527304] [2020-12-23 09:11:25,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:25,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:11:25,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317527304] [2020-12-23 09:11:25,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:25,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 09:11:25,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836414486] [2020-12-23 09:11:25,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 09:11:25,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:25,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 09:11:25,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-23 09:11:25,944 INFO L87 Difference]: Start difference. First operand 19846 states and 35741 transitions. Second operand 9 states. [2020-12-23 09:11:28,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:28,757 INFO L93 Difference]: Finished difference Result 40873 states and 73360 transitions. [2020-12-23 09:11:28,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 09:11:28,758 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2020-12-23 09:11:28,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:28,840 INFO L225 Difference]: With dead ends: 40873 [2020-12-23 09:11:28,840 INFO L226 Difference]: Without dead ends: 40553 [2020-12-23 09:11:28,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2020-12-23 09:11:28,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40553 states. [2020-12-23 09:11:30,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40553 to 39413. [2020-12-23 09:11:30,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39413 states. [2020-12-23 09:11:31,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39413 states to 39413 states and 71007 transitions. [2020-12-23 09:11:31,052 INFO L78 Accepts]: Start accepts. Automaton has 39413 states and 71007 transitions. Word has length 113 [2020-12-23 09:11:31,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:31,052 INFO L481 AbstractCegarLoop]: Abstraction has 39413 states and 71007 transitions. [2020-12-23 09:11:31,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 09:11:31,052 INFO L276 IsEmpty]: Start isEmpty. Operand 39413 states and 71007 transitions. [2020-12-23 09:11:31,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-23 09:11:31,110 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:31,110 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:31,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 09:11:31,111 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:31,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:31,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1172624995, now seen corresponding path program 1 times [2020-12-23 09:11:31,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:31,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503135644] [2020-12-23 09:11:31,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:11:31,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503135644] [2020-12-23 09:11:31,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:31,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-23 09:11:31,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225475902] [2020-12-23 09:11:31,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 09:11:31,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:31,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 09:11:31,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-23 09:11:31,255 INFO L87 Difference]: Start difference. First operand 39413 states and 71007 transitions. Second operand 10 states. [2020-12-23 09:11:34,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:34,316 INFO L93 Difference]: Finished difference Result 43414 states and 77329 transitions. [2020-12-23 09:11:34,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-23 09:11:34,317 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 113 [2020-12-23 09:11:34,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:34,381 INFO L225 Difference]: With dead ends: 43414 [2020-12-23 09:11:34,381 INFO L226 Difference]: Without dead ends: 42911 [2020-12-23 09:11:34,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=337, Invalid=923, Unknown=0, NotChecked=0, Total=1260 [2020-12-23 09:11:34,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42911 states. [2020-12-23 09:11:36,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42911 to 39437. [2020-12-23 09:11:36,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39437 states. [2020-12-23 09:11:36,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39437 states to 39437 states and 71039 transitions. [2020-12-23 09:11:36,470 INFO L78 Accepts]: Start accepts. Automaton has 39437 states and 71039 transitions. Word has length 113 [2020-12-23 09:11:36,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:36,470 INFO L481 AbstractCegarLoop]: Abstraction has 39437 states and 71039 transitions. [2020-12-23 09:11:36,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 09:11:36,470 INFO L276 IsEmpty]: Start isEmpty. Operand 39437 states and 71039 transitions. [2020-12-23 09:11:36,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-23 09:11:36,528 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:36,528 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:36,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 09:11:36,529 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:36,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:36,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1616078184, now seen corresponding path program 1 times [2020-12-23 09:11:36,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:36,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062923045] [2020-12-23 09:11:36,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:11:36,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062923045] [2020-12-23 09:11:36,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:36,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:11:36,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499778085] [2020-12-23 09:11:36,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:11:36,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:36,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:11:36,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:11:36,651 INFO L87 Difference]: Start difference. First operand 39437 states and 71039 transitions. Second operand 5 states. [2020-12-23 09:11:38,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:38,920 INFO L93 Difference]: Finished difference Result 42573 states and 76055 transitions. [2020-12-23 09:11:38,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 09:11:38,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2020-12-23 09:11:38,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:38,976 INFO L225 Difference]: With dead ends: 42573 [2020-12-23 09:11:38,976 INFO L226 Difference]: Without dead ends: 42166 [2020-12-23 09:11:38,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 09:11:39,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42166 states. [2020-12-23 09:11:40,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42166 to 39861. [2020-12-23 09:11:40,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39861 states. [2020-12-23 09:11:40,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39861 states to 39861 states and 71727 transitions. [2020-12-23 09:11:40,710 INFO L78 Accepts]: Start accepts. Automaton has 39861 states and 71727 transitions. Word has length 114 [2020-12-23 09:11:40,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:40,710 INFO L481 AbstractCegarLoop]: Abstraction has 39861 states and 71727 transitions. [2020-12-23 09:11:40,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:11:40,711 INFO L276 IsEmpty]: Start isEmpty. Operand 39861 states and 71727 transitions. [2020-12-23 09:11:40,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-23 09:11:40,759 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:40,760 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:40,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 09:11:40,760 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:40,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:40,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1410187527, now seen corresponding path program 1 times [2020-12-23 09:11:40,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:40,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43731513] [2020-12-23 09:11:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:40,880 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:11:40,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43731513] [2020-12-23 09:11:40,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:40,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 09:11:40,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796140005] [2020-12-23 09:11:40,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 09:11:40,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:40,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 09:11:40,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:11:40,883 INFO L87 Difference]: Start difference. First operand 39861 states and 71727 transitions. Second operand 7 states. [2020-12-23 09:11:43,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:43,017 INFO L93 Difference]: Finished difference Result 41604 states and 74495 transitions. [2020-12-23 09:11:43,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 09:11:43,017 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2020-12-23 09:11:43,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:43,068 INFO L225 Difference]: With dead ends: 41604 [2020-12-23 09:11:43,068 INFO L226 Difference]: Without dead ends: 41229 [2020-12-23 09:11:43,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-12-23 09:11:43,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41229 states. [2020-12-23 09:11:44,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41229 to 39877. [2020-12-23 09:11:44,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39877 states. [2020-12-23 09:11:45,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39877 states to 39877 states and 71743 transitions. [2020-12-23 09:11:45,020 INFO L78 Accepts]: Start accepts. Automaton has 39877 states and 71743 transitions. Word has length 115 [2020-12-23 09:11:45,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:45,020 INFO L481 AbstractCegarLoop]: Abstraction has 39877 states and 71743 transitions. [2020-12-23 09:11:45,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 09:11:45,021 INFO L276 IsEmpty]: Start isEmpty. Operand 39877 states and 71743 transitions. [2020-12-23 09:11:45,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-23 09:11:45,077 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:45,077 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:45,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 09:11:45,078 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:45,078 INFO L82 PathProgramCache]: Analyzing trace with hash 193606974, now seen corresponding path program 1 times [2020-12-23 09:11:45,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:45,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859586144] [2020-12-23 09:11:45,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:45,257 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:11:45,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859586144] [2020-12-23 09:11:45,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:45,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-23 09:11:45,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054541459] [2020-12-23 09:11:45,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 09:11:45,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:45,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 09:11:45,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-23 09:11:45,260 INFO L87 Difference]: Start difference. First operand 39877 states and 71743 transitions. Second operand 10 states. [2020-12-23 09:11:47,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:47,322 INFO L93 Difference]: Finished difference Result 40941 states and 73427 transitions. [2020-12-23 09:11:47,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-23 09:11:47,322 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 115 [2020-12-23 09:11:47,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:47,381 INFO L225 Difference]: With dead ends: 40941 [2020-12-23 09:11:47,381 INFO L226 Difference]: Without dead ends: 40022 [2020-12-23 09:11:47,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=415, Unknown=0, NotChecked=0, Total=600 [2020-12-23 09:11:47,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40022 states. [2020-12-23 09:11:49,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40022 to 39821. [2020-12-23 09:11:49,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39821 states. [2020-12-23 09:11:49,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39821 states to 39821 states and 71615 transitions. [2020-12-23 09:11:49,338 INFO L78 Accepts]: Start accepts. Automaton has 39821 states and 71615 transitions. Word has length 115 [2020-12-23 09:11:49,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:49,338 INFO L481 AbstractCegarLoop]: Abstraction has 39821 states and 71615 transitions. [2020-12-23 09:11:49,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 09:11:49,338 INFO L276 IsEmpty]: Start isEmpty. Operand 39821 states and 71615 transitions. [2020-12-23 09:11:49,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 09:11:49,386 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:49,387 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:49,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-23 09:11:49,387 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:49,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:49,388 INFO L82 PathProgramCache]: Analyzing trace with hash 232341693, now seen corresponding path program 1 times [2020-12-23 09:11:49,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:49,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426771719] [2020-12-23 09:11:49,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:11:49,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426771719] [2020-12-23 09:11:49,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:49,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:11:49,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930032990] [2020-12-23 09:11:49,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:11:49,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:49,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:11:49,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:11:49,464 INFO L87 Difference]: Start difference. First operand 39821 states and 71615 transitions. Second operand 4 states. [2020-12-23 09:11:51,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:51,684 INFO L93 Difference]: Finished difference Result 42809 states and 76302 transitions. [2020-12-23 09:11:51,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:11:51,685 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2020-12-23 09:11:51,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:51,768 INFO L225 Difference]: With dead ends: 42809 [2020-12-23 09:11:51,768 INFO L226 Difference]: Without dead ends: 41798 [2020-12-23 09:11:51,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:11:51,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41798 states. [2020-12-23 09:11:53,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41798 to 39831. [2020-12-23 09:11:53,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39831 states. [2020-12-23 09:11:53,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39831 states to 39831 states and 71625 transitions. [2020-12-23 09:11:53,564 INFO L78 Accepts]: Start accepts. Automaton has 39831 states and 71625 transitions. Word has length 117 [2020-12-23 09:11:53,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:53,564 INFO L481 AbstractCegarLoop]: Abstraction has 39831 states and 71625 transitions. [2020-12-23 09:11:53,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:11:53,565 INFO L276 IsEmpty]: Start isEmpty. Operand 39831 states and 71625 transitions. [2020-12-23 09:11:53,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 09:11:53,612 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:53,613 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:53,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-23 09:11:53,613 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:53,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:53,613 INFO L82 PathProgramCache]: Analyzing trace with hash 168752732, now seen corresponding path program 1 times [2020-12-23 09:11:53,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:53,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84153394] [2020-12-23 09:11:53,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:53,703 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:11:53,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84153394] [2020-12-23 09:11:53,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:53,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 09:11:53,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586097029] [2020-12-23 09:11:53,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 09:11:53,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:53,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 09:11:53,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 09:11:53,705 INFO L87 Difference]: Start difference. First operand 39831 states and 71625 transitions. Second operand 6 states. [2020-12-23 09:11:55,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:11:55,695 INFO L93 Difference]: Finished difference Result 41625 states and 74448 transitions. [2020-12-23 09:11:55,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 09:11:55,695 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2020-12-23 09:11:55,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:11:55,754 INFO L225 Difference]: With dead ends: 41625 [2020-12-23 09:11:55,755 INFO L226 Difference]: Without dead ends: 40576 [2020-12-23 09:11:55,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-23 09:11:55,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40576 states. [2020-12-23 09:11:57,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40576 to 39771. [2020-12-23 09:11:57,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39771 states. [2020-12-23 09:11:57,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39771 states to 39771 states and 71528 transitions. [2020-12-23 09:11:57,653 INFO L78 Accepts]: Start accepts. Automaton has 39771 states and 71528 transitions. Word has length 117 [2020-12-23 09:11:57,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:11:57,654 INFO L481 AbstractCegarLoop]: Abstraction has 39771 states and 71528 transitions. [2020-12-23 09:11:57,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 09:11:57,654 INFO L276 IsEmpty]: Start isEmpty. Operand 39771 states and 71528 transitions. [2020-12-23 09:11:57,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-23 09:11:57,708 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:11:57,708 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:11:57,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-23 09:11:57,709 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:11:57,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:11:57,709 INFO L82 PathProgramCache]: Analyzing trace with hash 326051971, now seen corresponding path program 1 times [2020-12-23 09:11:57,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:11:57,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776536179] [2020-12-23 09:11:57,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:11:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:11:57,926 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:11:57,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776536179] [2020-12-23 09:11:57,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:11:57,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-23 09:11:57,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610792609] [2020-12-23 09:11:57,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 09:11:57,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:11:57,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 09:11:57,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-12-23 09:11:57,929 INFO L87 Difference]: Start difference. First operand 39771 states and 71528 transitions. Second operand 12 states. [2020-12-23 09:11:59,259 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-23 09:12:01,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:12:01,048 INFO L93 Difference]: Finished difference Result 43226 states and 76889 transitions. [2020-12-23 09:12:01,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-12-23 09:12:01,049 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 118 [2020-12-23 09:12:01,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:12:01,104 INFO L225 Difference]: With dead ends: 43226 [2020-12-23 09:12:01,104 INFO L226 Difference]: Without dead ends: 42889 [2020-12-23 09:12:01,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=316, Invalid=874, Unknown=0, NotChecked=0, Total=1190 [2020-12-23 09:12:01,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42889 states. [2020-12-23 09:12:03,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42889 to 40219. [2020-12-23 09:12:03,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40219 states. [2020-12-23 09:12:03,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40219 states to 40219 states and 72253 transitions. [2020-12-23 09:12:03,116 INFO L78 Accepts]: Start accepts. Automaton has 40219 states and 72253 transitions. Word has length 118 [2020-12-23 09:12:03,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:12:03,116 INFO L481 AbstractCegarLoop]: Abstraction has 40219 states and 72253 transitions. [2020-12-23 09:12:03,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 09:12:03,116 INFO L276 IsEmpty]: Start isEmpty. Operand 40219 states and 72253 transitions. [2020-12-23 09:12:03,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-23 09:12:03,160 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:12:03,160 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:12:03,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-23 09:12:03,160 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:12:03,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:12:03,161 INFO L82 PathProgramCache]: Analyzing trace with hash -482355143, now seen corresponding path program 1 times [2020-12-23 09:12:03,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:12:03,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164073083] [2020-12-23 09:12:03,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:12:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:12:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:12:03,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164073083] [2020-12-23 09:12:03,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:12:03,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 09:12:03,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107207092] [2020-12-23 09:12:03,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 09:12:03,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:12:03,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 09:12:03,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-23 09:12:03,286 INFO L87 Difference]: Start difference. First operand 40219 states and 72253 transitions. Second operand 9 states. [2020-12-23 09:12:05,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:12:05,209 INFO L93 Difference]: Finished difference Result 41273 states and 73897 transitions. [2020-12-23 09:12:05,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 09:12:05,209 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 118 [2020-12-23 09:12:05,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:12:05,277 INFO L225 Difference]: With dead ends: 41273 [2020-12-23 09:12:05,277 INFO L226 Difference]: Without dead ends: 39947 [2020-12-23 09:12:05,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2020-12-23 09:12:05,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39947 states. [2020-12-23 09:12:07,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39947 to 39729. [2020-12-23 09:12:07,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39729 states. [2020-12-23 09:12:07,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39729 states to 39729 states and 71457 transitions. [2020-12-23 09:12:07,117 INFO L78 Accepts]: Start accepts. Automaton has 39729 states and 71457 transitions. Word has length 118 [2020-12-23 09:12:07,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:12:07,117 INFO L481 AbstractCegarLoop]: Abstraction has 39729 states and 71457 transitions. [2020-12-23 09:12:07,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 09:12:07,118 INFO L276 IsEmpty]: Start isEmpty. Operand 39729 states and 71457 transitions. [2020-12-23 09:12:07,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-12-23 09:12:07,162 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:12:07,162 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:12:07,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-23 09:12:07,162 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:12:07,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:12:07,163 INFO L82 PathProgramCache]: Analyzing trace with hash -922339755, now seen corresponding path program 1 times [2020-12-23 09:12:07,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:12:07,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404716661] [2020-12-23 09:12:07,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:12:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:12:07,270 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:12:07,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404716661] [2020-12-23 09:12:07,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:12:07,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:12:07,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873294251] [2020-12-23 09:12:07,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:12:07,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:12:07,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:12:07,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:12:07,272 INFO L87 Difference]: Start difference. First operand 39729 states and 71457 transitions. Second operand 5 states. [2020-12-23 09:12:08,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:12:08,969 INFO L93 Difference]: Finished difference Result 39842 states and 71631 transitions. [2020-12-23 09:12:08,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:12:08,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-12-23 09:12:08,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:12:09,029 INFO L225 Difference]: With dead ends: 39842 [2020-12-23 09:12:09,029 INFO L226 Difference]: Without dead ends: 39729 [2020-12-23 09:12:09,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:12:09,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39729 states. [2020-12-23 09:12:10,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39729 to 39729. [2020-12-23 09:12:10,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39729 states. [2020-12-23 09:12:10,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39729 states to 39729 states and 71449 transitions. [2020-12-23 09:12:10,838 INFO L78 Accepts]: Start accepts. Automaton has 39729 states and 71449 transitions. Word has length 119 [2020-12-23 09:12:10,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:12:10,838 INFO L481 AbstractCegarLoop]: Abstraction has 39729 states and 71449 transitions. [2020-12-23 09:12:10,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:12:10,838 INFO L276 IsEmpty]: Start isEmpty. Operand 39729 states and 71449 transitions. [2020-12-23 09:12:10,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-12-23 09:12:10,885 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:12:10,885 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:12:10,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-23 09:12:10,886 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:12:10,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:12:10,886 INFO L82 PathProgramCache]: Analyzing trace with hash 157167640, now seen corresponding path program 1 times [2020-12-23 09:12:10,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:12:10,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111008155] [2020-12-23 09:12:10,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:12:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:12:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:12:11,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111008155] [2020-12-23 09:12:11,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:12:11,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-23 09:12:11,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270005987] [2020-12-23 09:12:11,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-23 09:12:11,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:12:11,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-23 09:12:11,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-12-23 09:12:11,099 INFO L87 Difference]: Start difference. First operand 39729 states and 71449 transitions. Second operand 13 states. [2020-12-23 09:12:13,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:12:13,660 INFO L93 Difference]: Finished difference Result 40117 states and 72033 transitions. [2020-12-23 09:12:13,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-23 09:12:13,661 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 145 [2020-12-23 09:12:13,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:12:13,745 INFO L225 Difference]: With dead ends: 40117 [2020-12-23 09:12:13,745 INFO L226 Difference]: Without dead ends: 39900 [2020-12-23 09:12:13,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=275, Invalid=655, Unknown=0, NotChecked=0, Total=930 [2020-12-23 09:12:13,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39900 states. [2020-12-23 09:12:15,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39900 to 39725. [2020-12-23 09:12:15,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39725 states. [2020-12-23 09:12:15,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39725 states to 39725 states and 71433 transitions. [2020-12-23 09:12:15,623 INFO L78 Accepts]: Start accepts. Automaton has 39725 states and 71433 transitions. Word has length 145 [2020-12-23 09:12:15,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:12:15,623 INFO L481 AbstractCegarLoop]: Abstraction has 39725 states and 71433 transitions. [2020-12-23 09:12:15,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-23 09:12:15,623 INFO L276 IsEmpty]: Start isEmpty. Operand 39725 states and 71433 transitions. [2020-12-23 09:12:15,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-12-23 09:12:15,667 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:12:15,667 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:12:15,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-23 09:12:15,668 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:12:15,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:12:15,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1879428605, now seen corresponding path program 1 times [2020-12-23 09:12:15,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:12:15,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918635710] [2020-12-23 09:12:15,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:12:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:12:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:12:16,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918635710] [2020-12-23 09:12:16,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:12:16,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-12-23 09:12:16,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122224000] [2020-12-23 09:12:16,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-23 09:12:16,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:12:16,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-23 09:12:16,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-12-23 09:12:16,074 INFO L87 Difference]: Start difference. First operand 39725 states and 71433 transitions. Second operand 15 states. [2020-12-23 09:12:18,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:12:18,814 INFO L93 Difference]: Finished difference Result 40497 states and 72569 transitions. [2020-12-23 09:12:18,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-23 09:12:18,815 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 145 [2020-12-23 09:12:18,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:12:18,946 INFO L225 Difference]: With dead ends: 40497 [2020-12-23 09:12:18,946 INFO L226 Difference]: Without dead ends: 40416 [2020-12-23 09:12:18,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2020-12-23 09:12:18,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40416 states. [2020-12-23 09:12:20,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40416 to 39725. [2020-12-23 09:12:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39725 states. [2020-12-23 09:12:20,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39725 states to 39725 states and 71429 transitions. [2020-12-23 09:12:20,681 INFO L78 Accepts]: Start accepts. Automaton has 39725 states and 71429 transitions. Word has length 145 [2020-12-23 09:12:20,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:12:20,681 INFO L481 AbstractCegarLoop]: Abstraction has 39725 states and 71429 transitions. [2020-12-23 09:12:20,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-23 09:12:20,682 INFO L276 IsEmpty]: Start isEmpty. Operand 39725 states and 71429 transitions. [2020-12-23 09:12:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-12-23 09:12:20,727 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:12:20,728 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:12:20,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-23 09:12:20,728 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:12:20,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:12:20,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1169846910, now seen corresponding path program 1 times [2020-12-23 09:12:20,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:12:20,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184407733] [2020-12-23 09:12:20,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:12:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:12:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:12:21,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184407733] [2020-12-23 09:12:21,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:12:21,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-23 09:12:21,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794972233] [2020-12-23 09:12:21,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-23 09:12:21,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:12:21,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-23 09:12:21,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-12-23 09:12:21,207 INFO L87 Difference]: Start difference. First operand 39725 states and 71429 transitions. Second operand 17 states. [2020-12-23 09:12:25,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:12:25,304 INFO L93 Difference]: Finished difference Result 41070 states and 73403 transitions. [2020-12-23 09:12:25,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-12-23 09:12:25,305 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 146 [2020-12-23 09:12:25,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:12:25,355 INFO L225 Difference]: With dead ends: 41070 [2020-12-23 09:12:25,355 INFO L226 Difference]: Without dead ends: 41040 [2020-12-23 09:12:25,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=897, Invalid=3009, Unknown=0, NotChecked=0, Total=3906 [2020-12-23 09:12:25,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41040 states. [2020-12-23 09:12:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41040 to 39051. [2020-12-23 09:12:26,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39051 states. [2020-12-23 09:12:26,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39051 states to 39051 states and 70390 transitions. [2020-12-23 09:12:26,952 INFO L78 Accepts]: Start accepts. Automaton has 39051 states and 70390 transitions. Word has length 146 [2020-12-23 09:12:26,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:12:26,952 INFO L481 AbstractCegarLoop]: Abstraction has 39051 states and 70390 transitions. [2020-12-23 09:12:26,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-23 09:12:26,952 INFO L276 IsEmpty]: Start isEmpty. Operand 39051 states and 70390 transitions. [2020-12-23 09:12:26,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-23 09:12:26,995 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:12:26,995 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:12:26,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-23 09:12:26,995 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:12:26,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:12:26,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1118436915, now seen corresponding path program 1 times [2020-12-23 09:12:26,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:12:26,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336681867] [2020-12-23 09:12:26,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:12:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:12:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:12:27,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336681867] [2020-12-23 09:12:27,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:12:27,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-12-23 09:12:27,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738494530] [2020-12-23 09:12:27,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-23 09:12:27,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:12:27,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-23 09:12:27,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2020-12-23 09:12:27,371 INFO L87 Difference]: Start difference. First operand 39051 states and 70390 transitions. Second operand 16 states. [2020-12-23 09:12:30,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:12:30,936 INFO L93 Difference]: Finished difference Result 39461 states and 70995 transitions. [2020-12-23 09:12:30,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-12-23 09:12:30,936 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 147 [2020-12-23 09:12:30,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:12:30,992 INFO L225 Difference]: With dead ends: 39461 [2020-12-23 09:12:30,992 INFO L226 Difference]: Without dead ends: 39434 [2020-12-23 09:12:31,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=873, Invalid=2787, Unknown=0, NotChecked=0, Total=3660 [2020-12-23 09:12:31,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39434 states. [2020-12-23 09:12:32,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39434 to 39048. [2020-12-23 09:12:32,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39048 states. [2020-12-23 09:12:32,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39048 states to 39048 states and 70383 transitions. [2020-12-23 09:12:32,716 INFO L78 Accepts]: Start accepts. Automaton has 39048 states and 70383 transitions. Word has length 147 [2020-12-23 09:12:32,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:12:32,716 INFO L481 AbstractCegarLoop]: Abstraction has 39048 states and 70383 transitions. [2020-12-23 09:12:32,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-23 09:12:32,716 INFO L276 IsEmpty]: Start isEmpty. Operand 39048 states and 70383 transitions. [2020-12-23 09:12:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-23 09:12:32,754 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:12:32,755 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:12:32,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-23 09:12:32,755 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:12:32,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:12:32,755 INFO L82 PathProgramCache]: Analyzing trace with hash -894963135, now seen corresponding path program 1 times [2020-12-23 09:12:32,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:12:32,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788168210] [2020-12-23 09:12:32,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:12:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:12:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:12:33,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788168210] [2020-12-23 09:12:33,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:12:33,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-23 09:12:33,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760385485] [2020-12-23 09:12:33,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-23 09:12:33,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:12:33,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-23 09:12:33,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-12-23 09:12:33,045 INFO L87 Difference]: Start difference. First operand 39048 states and 70383 transitions. Second operand 17 states. [2020-12-23 09:12:37,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:12:37,270 INFO L93 Difference]: Finished difference Result 39733 states and 71390 transitions. [2020-12-23 09:12:37,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-12-23 09:12:37,271 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 147 [2020-12-23 09:12:37,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:12:37,323 INFO L225 Difference]: With dead ends: 39733 [2020-12-23 09:12:37,323 INFO L226 Difference]: Without dead ends: 39722 [2020-12-23 09:12:37,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 883 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=945, Invalid=3345, Unknown=0, NotChecked=0, Total=4290 [2020-12-23 09:12:37,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39722 states. [2020-12-23 09:12:38,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39722 to 39048. [2020-12-23 09:12:38,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39048 states. [2020-12-23 09:12:39,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39048 states to 39048 states and 70382 transitions. [2020-12-23 09:12:39,032 INFO L78 Accepts]: Start accepts. Automaton has 39048 states and 70382 transitions. Word has length 147 [2020-12-23 09:12:39,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:12:39,032 INFO L481 AbstractCegarLoop]: Abstraction has 39048 states and 70382 transitions. [2020-12-23 09:12:39,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-23 09:12:39,033 INFO L276 IsEmpty]: Start isEmpty. Operand 39048 states and 70382 transitions. [2020-12-23 09:12:39,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-12-23 09:12:39,072 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:12:39,072 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:12:39,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-23 09:12:39,072 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:12:39,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:12:39,073 INFO L82 PathProgramCache]: Analyzing trace with hash -292387008, now seen corresponding path program 1 times [2020-12-23 09:12:39,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:12:39,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275752025] [2020-12-23 09:12:39,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:12:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:12:39,203 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 09:12:39,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275752025] [2020-12-23 09:12:39,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:12:39,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:12:39,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534012009] [2020-12-23 09:12:39,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:12:39,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:12:39,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:12:39,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:12:39,205 INFO L87 Difference]: Start difference. First operand 39048 states and 70382 transitions. Second operand 5 states. [2020-12-23 09:12:41,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:12:41,278 INFO L93 Difference]: Finished difference Result 39415 states and 70930 transitions. [2020-12-23 09:12:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 09:12:41,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-12-23 09:12:41,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:12:41,327 INFO L225 Difference]: With dead ends: 39415 [2020-12-23 09:12:41,327 INFO L226 Difference]: Without dead ends: 38991 [2020-12-23 09:12:41,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 09:12:41,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38991 states. [2020-12-23 09:12:42,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38991 to 38794. [2020-12-23 09:12:42,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38794 states. [2020-12-23 09:12:42,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38794 states to 38794 states and 69766 transitions. [2020-12-23 09:12:42,930 INFO L78 Accepts]: Start accepts. Automaton has 38794 states and 69766 transitions. Word has length 148 [2020-12-23 09:12:42,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:12:42,930 INFO L481 AbstractCegarLoop]: Abstraction has 38794 states and 69766 transitions. [2020-12-23 09:12:42,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:12:42,930 INFO L276 IsEmpty]: Start isEmpty. Operand 38794 states and 69766 transitions. [2020-12-23 09:12:42,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-12-23 09:12:42,971 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:12:42,972 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:12:42,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-23 09:12:42,972 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:12:42,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:12:42,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1983907192, now seen corresponding path program 1 times [2020-12-23 09:12:42,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:12:42,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117869368] [2020-12-23 09:12:42,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:12:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:12:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 09:12:43,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117869368] [2020-12-23 09:12:43,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:12:43,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:12:43,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039946443] [2020-12-23 09:12:43,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:12:43,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:12:43,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:12:43,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:12:43,066 INFO L87 Difference]: Start difference. First operand 38794 states and 69766 transitions. Second operand 5 states. [2020-12-23 09:12:46,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:12:46,262 INFO L93 Difference]: Finished difference Result 109882 states and 197057 transitions. [2020-12-23 09:12:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:12:46,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2020-12-23 09:12:46,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:12:46,366 INFO L225 Difference]: With dead ends: 109882 [2020-12-23 09:12:46,366 INFO L226 Difference]: Without dead ends: 71339 [2020-12-23 09:12:46,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:12:46,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71339 states. [2020-12-23 09:12:48,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71339 to 38794. [2020-12-23 09:12:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38794 states. [2020-12-23 09:12:48,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38794 states to 38794 states and 69637 transitions. [2020-12-23 09:12:48,813 INFO L78 Accepts]: Start accepts. Automaton has 38794 states and 69637 transitions. Word has length 154 [2020-12-23 09:12:48,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:12:48,813 INFO L481 AbstractCegarLoop]: Abstraction has 38794 states and 69637 transitions. [2020-12-23 09:12:48,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:12:48,813 INFO L276 IsEmpty]: Start isEmpty. Operand 38794 states and 69637 transitions. [2020-12-23 09:12:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-12-23 09:12:48,851 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:12:48,852 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-12-23 09:12:48,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-23 09:12:48,852 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:12:48,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:12:48,852 INFO L82 PathProgramCache]: Analyzing trace with hash 337535625, now seen corresponding path program 1 times [2020-12-23 09:12:48,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:12:48,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368564778] [2020-12-23 09:12:48,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:12:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:12:48,961 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 09:12:48,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368564778] [2020-12-23 09:12:48,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:12:48,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:12:48,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102257690] [2020-12-23 09:12:48,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:12:48,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:12:48,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:12:48,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:12:48,963 INFO L87 Difference]: Start difference. First operand 38794 states and 69637 transitions. Second operand 5 states. [2020-12-23 09:12:55,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:12:55,529 INFO L93 Difference]: Finished difference Result 188238 states and 337125 transitions. [2020-12-23 09:12:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 09:12:55,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-12-23 09:12:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:12:55,952 INFO L225 Difference]: With dead ends: 188238 [2020-12-23 09:12:55,953 INFO L226 Difference]: Without dead ends: 149543 [2020-12-23 09:12:55,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 09:12:56,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149543 states. [2020-12-23 09:13:00,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149543 to 80853. [2020-12-23 09:13:00,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80853 states. [2020-12-23 09:13:00,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80853 states to 80853 states and 142365 transitions. [2020-12-23 09:13:00,820 INFO L78 Accepts]: Start accepts. Automaton has 80853 states and 142365 transitions. Word has length 155 [2020-12-23 09:13:00,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:13:00,820 INFO L481 AbstractCegarLoop]: Abstraction has 80853 states and 142365 transitions. [2020-12-23 09:13:00,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:13:00,820 INFO L276 IsEmpty]: Start isEmpty. Operand 80853 states and 142365 transitions. [2020-12-23 09:13:00,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-12-23 09:13:00,912 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:13:00,912 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:13:00,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-23 09:13:00,913 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:13:00,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:13:00,913 INFO L82 PathProgramCache]: Analyzing trace with hash -446415580, now seen corresponding path program 1 times [2020-12-23 09:13:00,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:13:00,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436724021] [2020-12-23 09:13:00,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:13:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:13:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 09:13:01,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436724021] [2020-12-23 09:13:01,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:13:01,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:13:01,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227680660] [2020-12-23 09:13:01,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:13:01,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:13:01,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:13:01,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:13:01,009 INFO L87 Difference]: Start difference. First operand 80853 states and 142365 transitions. Second operand 5 states. [2020-12-23 09:13:15,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:13:15,676 INFO L93 Difference]: Finished difference Result 384866 states and 679763 transitions. [2020-12-23 09:13:15,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 09:13:15,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-12-23 09:13:15,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:13:16,573 INFO L225 Difference]: With dead ends: 384866 [2020-12-23 09:13:16,573 INFO L226 Difference]: Without dead ends: 304315 [2020-12-23 09:13:16,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 09:13:16,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304315 states. [2020-12-23 09:13:27,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304315 to 161174. [2020-12-23 09:13:27,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161174 states. [2020-12-23 09:13:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161174 states to 161174 states and 283883 transitions. [2020-12-23 09:13:27,781 INFO L78 Accepts]: Start accepts. Automaton has 161174 states and 283883 transitions. Word has length 155 [2020-12-23 09:13:27,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:13:27,781 INFO L481 AbstractCegarLoop]: Abstraction has 161174 states and 283883 transitions. [2020-12-23 09:13:27,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:13:27,781 INFO L276 IsEmpty]: Start isEmpty. Operand 161174 states and 283883 transitions. [2020-12-23 09:13:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-12-23 09:13:28,005 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:13:28,005 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:13:28,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-23 09:13:28,005 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:13:28,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:13:28,006 INFO L82 PathProgramCache]: Analyzing trace with hash -601598723, now seen corresponding path program 1 times [2020-12-23 09:13:28,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:13:28,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288352527] [2020-12-23 09:13:28,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:13:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:13:28,110 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 09:13:28,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288352527] [2020-12-23 09:13:28,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:13:28,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:13:28,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033209410] [2020-12-23 09:13:28,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:13:28,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:13:28,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:13:28,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:13:28,112 INFO L87 Difference]: Start difference. First operand 161174 states and 283883 transitions. Second operand 4 states.