/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/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--misc--idmouse.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 15:00:30,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 15:00:30,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 15:00:30,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 15:00:30,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 15:00:30,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 15:00:30,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 15:00:30,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 15:00:30,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 15:00:30,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 15:00:30,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 15:00:30,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 15:00:30,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 15:00:30,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 15:00:30,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 15:00:30,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 15:00:30,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 15:00:30,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 15:00:30,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 15:00:30,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 15:00:30,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 15:00:30,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 15:00:30,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 15:00:30,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 15:00:30,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 15:00:30,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 15:00:30,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 15:00:30,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 15:00:30,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 15:00:30,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 15:00:30,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 15:00:30,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 15:00:30,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 15:00:30,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 15:00:30,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 15:00:30,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 15:00:30,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 15:00:30,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 15:00:30,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 15:00:30,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 15:00:30,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 15:00:30,583 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 15:00:30,638 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 15:00:30,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 15:00:30,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 15:00:30,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 15:00:30,645 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 15:00:30,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 15:00:30,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 15:00:30,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 15:00:30,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 15:00:30,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 15:00:30,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 15:00:30,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 15:00:30,648 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 15:00:30,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 15:00:30,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 15:00:30,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 15:00:30,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 15:00:30,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 15:00:30,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 15:00:30,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 15:00:30,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 15:00:30,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 15:00:30,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 15:00:30,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 15:00:30,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 15:00:30,651 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 15:00:31,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 15:00:31,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 15:00:31,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 15:00:31,172 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 15:00:31,172 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 15:00:31,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--misc--idmouse.ko-entry_point.cil.out.i [2020-12-23 15:00:31,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0242c844f/77462b6cf74948b2a303f36c4ddd9ffa/FLAG616df7f51 [2020-12-23 15:00:32,347 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 15:00:32,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--misc--idmouse.ko-entry_point.cil.out.i [2020-12-23 15:00:32,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0242c844f/77462b6cf74948b2a303f36c4ddd9ffa/FLAG616df7f51 [2020-12-23 15:00:32,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0242c844f/77462b6cf74948b2a303f36c4ddd9ffa [2020-12-23 15:00:32,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 15:00:32,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 15:00:32,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 15:00:32,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 15:00:32,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 15:00:32,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:00:32" (1/1) ... [2020-12-23 15:00:32,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c797a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:32, skipping insertion in model container [2020-12-23 15:00:32,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:00:32" (1/1) ... [2020-12-23 15:00:32,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 15:00:32,948 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~p~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~tmp~8,] [2020-12-23 15:00:33,951 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/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--misc--idmouse.ko-entry_point.cil.out.i[101600,101613] left hand side expression in assignment: lhs: VariableLHS[~__len~0,] left hand side expression in assignment: lhs: VariableLHS[~__ret~0,] left hand side expression in assignment: lhs: VariableLHS[~__ret~0,] left hand side expression in assignment: lhs: VariableLHS[~bytes_read~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~1,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~1,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~dev,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~0,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~bytes_read~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~bytes_read~0,] left hand side expression in assignment: lhs: VariableLHS[~bytes_read~0,] left hand side expression in assignment: lhs: VariableLHS[~bytes_read~0,] left hand side expression in assignment: lhs: VariableLHS[~bytes_read~0,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~descriptor~0,],modname] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~descriptor~0,],function] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~descriptor~0,],filename] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~descriptor~0,],format] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~descriptor~0,],lineno] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~descriptor~0,],flags] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~10,] left hand side expression in assignment: lhs: VariableLHS[~interface~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~dev~0,] left hand side expression in assignment: lhs: VariableLHS[~result~1,] left hand side expression in assignment: lhs: VariableLHS[~result~1,] left hand side expression in assignment: lhs: VariableLHS[~result~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[33],StructAccessExpression[IdentifierExpression[~dev~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~file,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[292],StructAccessExpression[IdentifierExpression[~file,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~dev~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~1,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[33],StructAccessExpression[IdentifierExpression[~dev~1,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~dev~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~11,] left hand side expression in assignment: lhs: VariableLHS[~result~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~12,] left hand side expression in assignment: lhs: VariableLHS[~udev~0,] left hand side expression in assignment: lhs: VariableLHS[~iface_desc~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~6,] left hand side expression in assignment: lhs: VariableLHS[~dev~3,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~endpoint~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~2,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~2,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[37],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~result~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp~13,] left hand side expression in assignment: lhs: VariableLHS[~dev~4,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~4,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[37],StructAccessExpression[IdentifierExpression[~dev~4,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~tmp~14,] left hand side expression in assignment: lhs: VariableLHS[~tmp~15,] left hand side expression in assignment: lhs: VariableLHS[~idmouse_driver_group1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~16,] left hand side expression in assignment: lhs: VariableLHS[~idmouse_fops_group1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~7,] left hand side expression in assignment: lhs: VariableLHS[~idmouse_fops_group2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~17,] left hand side expression in assignment: lhs: VariableLHS[~ldvarg1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~8,] left hand side expression in assignment: lhs: VariableLHS[~ldvarg4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~3,] left hand side expression in assignment: lhs: VariableLHS[~ldvarg3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~3,] left hand side expression in assignment: lhs: VariableLHS[~ldvarg5~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~2,] left hand side expression in assignment: lhs: VariableLHS[~ldvarg2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~1,] left hand side expression in assignment: lhs: VariableLHS[~ldvarg6~0,] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ref_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~1,] left hand side expression in assignment: lhs: VariableLHS[~ldv_retval_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ref_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_retval_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ref_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ref_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_retval_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_retval_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~1,] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_retval_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___8~1,] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ref_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_retval_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ref_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~18,] left hand side expression in assignment: lhs: VariableLHS[~tmp~19,] 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[~ldv_func_res~0,] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~usb_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~usb_intfdata~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~usb_intfdata~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~usb_urb~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~completeFnInt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~completeFnIntCounter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~completeFnBulk~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~completeFnBulkCounter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~22,] left hand side expression in assignment: lhs: VariableLHS[~res~0,] left hand side expression in assignment: lhs: VariableLHS[~completeFnIntCounter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~completeFnBulkCounter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~23,] left hand side expression in assignment: lhs: VariableLHS[~result~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp~24,] left hand side expression in assignment: lhs: VariableLHS[~dev_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~usb_dev~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~dev_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~dev_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~usb_dev~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~25,] left hand side expression in assignment: lhs: VariableLHS[~res~1,] left hand side expression in assignment: lhs: VariableLHS[~INTERF_STATE~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~INTERF_STATE~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~26,] left hand side expression in assignment: lhs: VariableLHS[~res~2,] left hand side expression in assignment: lhs: VariableLHS[~SERIAL_STATE~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~SERIAL_STATE~0,GLOBAL] [2020-12-23 15:00:34,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 15:00:34,278 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~p~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~tmp~8,] [2020-12-23 15:00:34,388 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/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--misc--idmouse.ko-entry_point.cil.out.i[101600,101613] left hand side expression in assignment: lhs: VariableLHS[~__len~0,] left hand side expression in assignment: lhs: VariableLHS[~__ret~0,] left hand side expression in assignment: lhs: VariableLHS[~__ret~0,] left hand side expression in assignment: lhs: VariableLHS[~bytes_read~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~1,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~1,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~dev,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~0,] left hand side expression in assignment: lhs: VariableLHS[~result~0,] left hand side expression in assignment: lhs: VariableLHS[~bytes_read~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~bytes_read~0,] left hand side expression in assignment: lhs: VariableLHS[~bytes_read~0,] left hand side expression in assignment: lhs: VariableLHS[~bytes_read~0,] left hand side expression in assignment: lhs: VariableLHS[~bytes_read~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#descriptor~0,],base],StructAccessExpression[IdentifierExpression[~#descriptor~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#descriptor~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~#descriptor~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#descriptor~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~#descriptor~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#descriptor~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~#descriptor~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#descriptor~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~#descriptor~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#descriptor~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[~#descriptor~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~10,] left hand side expression in assignment: lhs: VariableLHS[~interface~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~dev~0,] left hand side expression in assignment: lhs: VariableLHS[~result~1,] left hand side expression in assignment: lhs: VariableLHS[~result~1,] left hand side expression in assignment: lhs: VariableLHS[~result~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[33],StructAccessExpression[IdentifierExpression[~dev~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~file,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[292],StructAccessExpression[IdentifierExpression[~file,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~dev~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~1,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[33],StructAccessExpression[IdentifierExpression[~dev~1,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~dev~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~11,] left hand side expression in assignment: lhs: VariableLHS[~result~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~12,] left hand side expression in assignment: lhs: VariableLHS[~udev~0,] left hand side expression in assignment: lhs: VariableLHS[~iface_desc~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~6,] left hand side expression in assignment: lhs: VariableLHS[~dev~3,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~endpoint~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~2,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~2,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[37],StructAccessExpression[IdentifierExpression[~dev~3,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~result~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp~13,] left hand side expression in assignment: lhs: VariableLHS[~dev~4,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~dev~4,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[37],StructAccessExpression[IdentifierExpression[~dev~4,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~tmp~14,] left hand side expression in assignment: lhs: VariableLHS[~tmp~15,] left hand side expression in assignment: lhs: VariableLHS[~idmouse_driver_group1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~16,] left hand side expression in assignment: lhs: VariableLHS[~idmouse_fops_group1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~7,] left hand side expression in assignment: lhs: VariableLHS[~idmouse_fops_group2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~17,] left hand side expression in assignment: lhs: VariableLHS[~ldvarg1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~8,] left hand side expression in assignment: lhs: VariableLHS[~ldvarg4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~3,] left hand side expression in assignment: lhs: VariableLHS[~ldvarg3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~3,] left hand side expression in assignment: lhs: VariableLHS[~ldvarg5~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~2,] left hand side expression in assignment: lhs: VariableLHS[~ldvarg2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~1,] left hand side expression in assignment: lhs: VariableLHS[~ldvarg6~0,] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ref_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~1,] left hand side expression in assignment: lhs: VariableLHS[~ldv_retval_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ref_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_retval_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ref_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ref_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_retval_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_retval_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~1,] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_retval_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___8~1,] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ref_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_retval_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ref_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~18,] left hand side expression in assignment: lhs: VariableLHS[~tmp~19,] 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[~ldv_func_res~0,] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~usb_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ldv_state_variable_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~usb_intfdata~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~usb_intfdata~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~usb_urb~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~completeFnInt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~completeFnIntCounter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~completeFnBulk~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~completeFnBulkCounter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~22,] left hand side expression in assignment: lhs: VariableLHS[~res~0,] left hand side expression in assignment: lhs: VariableLHS[~completeFnIntCounter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~completeFnBulkCounter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~23,] left hand side expression in assignment: lhs: VariableLHS[~result~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp~24,] left hand side expression in assignment: lhs: VariableLHS[~dev_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~usb_dev~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~dev_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~dev_counter~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~usb_dev~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~25,] left hand side expression in assignment: lhs: VariableLHS[~res~1,] left hand side expression in assignment: lhs: VariableLHS[~INTERF_STATE~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~INTERF_STATE~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~26,] left hand side expression in assignment: lhs: VariableLHS[~res~2,] left hand side expression in assignment: lhs: VariableLHS[~SERIAL_STATE~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~SERIAL_STATE~0,GLOBAL] [2020-12-23 15:00:34,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 15:00:34,622 INFO L208 MainTranslator]: Completed translation [2020-12-23 15:00:34,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:34 WrapperNode [2020-12-23 15:00:34,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 15:00:34,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 15:00:34,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 15:00:34,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 15:00:34,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:34" (1/1) ... [2020-12-23 15:00:34,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:34" (1/1) ... [2020-12-23 15:00:34,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 15:00:34,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 15:00:34,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 15:00:34,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 15:00:34,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:34" (1/1) ... [2020-12-23 15:00:34,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:34" (1/1) ... [2020-12-23 15:00:34,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:34" (1/1) ... [2020-12-23 15:00:34,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:34" (1/1) ... [2020-12-23 15:00:34,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:34" (1/1) ... [2020-12-23 15:00:34,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:34" (1/1) ... [2020-12-23 15:00:34,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:34" (1/1) ... [2020-12-23 15:00:34,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 15:00:34,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 15:00:34,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 15:00:34,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 15:00:35,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:34" (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 15:00:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-23 15:00:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-23 15:00:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-23 15:00:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 15:00:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 15:00:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 15:00:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 15:00:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 15:00:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-23 15:00:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 15:00:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 15:00:35,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-23 15:00:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 15:00:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-23 15:00:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 15:00:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 15:00:37,666 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 15:00:37,666 INFO L299 CfgBuilder]: Removed 333 assume(true) statements. [2020-12-23 15:00:37,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:00:37 BoogieIcfgContainer [2020-12-23 15:00:37,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 15:00:37,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 15:00:37,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 15:00:37,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 15:00:37,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:00:32" (1/3) ... [2020-12-23 15:00:37,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228cf55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:00:37, skipping insertion in model container [2020-12-23 15:00:37,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:00:34" (2/3) ... [2020-12-23 15:00:37,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228cf55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:00:37, skipping insertion in model container [2020-12-23 15:00:37,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:00:37" (3/3) ... [2020-12-23 15:00:37,696 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--misc--idmouse.ko-entry_point.cil.out.i [2020-12-23 15:00:37,703 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 15:00:37,709 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-23 15:00:37,730 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-23 15:00:37,763 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 15:00:37,764 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 15:00:37,764 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 15:00:37,764 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 15:00:37,764 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 15:00:37,764 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 15:00:37,765 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 15:00:37,765 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 15:00:37,789 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-12-23 15:00:37,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 15:00:37,799 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:37,800 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] [2020-12-23 15:00:37,800 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:37,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:37,807 INFO L82 PathProgramCache]: Analyzing trace with hash 146323834, now seen corresponding path program 1 times [2020-12-23 15:00:37,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:37,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105242372] [2020-12-23 15:00:37,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:38,380 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 15:00:38,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105242372] [2020-12-23 15:00:38,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:00:38,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:00:38,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156573560] [2020-12-23 15:00:38,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:00:38,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:38,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:00:38,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:00:38,410 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 3 states. [2020-12-23 15:00:38,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:38,560 INFO L93 Difference]: Finished difference Result 586 states and 813 transitions. [2020-12-23 15:00:38,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:00:38,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-23 15:00:38,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:38,597 INFO L225 Difference]: With dead ends: 586 [2020-12-23 15:00:38,598 INFO L226 Difference]: Without dead ends: 286 [2020-12-23 15:00:38,609 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 15:00:38,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-12-23 15:00:38,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-12-23 15:00:38,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-12-23 15:00:38,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 378 transitions. [2020-12-23 15:00:38,738 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 378 transitions. Word has length 21 [2020-12-23 15:00:38,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:38,739 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 378 transitions. [2020-12-23 15:00:38,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:00:38,739 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 378 transitions. [2020-12-23 15:00:38,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 15:00:38,743 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:38,744 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] [2020-12-23 15:00:38,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 15:00:38,744 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:38,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:38,746 INFO L82 PathProgramCache]: Analyzing trace with hash 656053662, now seen corresponding path program 1 times [2020-12-23 15:00:38,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:38,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740078920] [2020-12-23 15:00:38,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:38,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 15:00:38,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740078920] [2020-12-23 15:00:38,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:00:38,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:00:38,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117913243] [2020-12-23 15:00:38,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:00:38,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:38,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:00:38,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:00:38,920 INFO L87 Difference]: Start difference. First operand 286 states and 378 transitions. Second operand 3 states. [2020-12-23 15:00:39,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:39,082 INFO L93 Difference]: Finished difference Result 779 states and 1044 transitions. [2020-12-23 15:00:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:00:39,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-23 15:00:39,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:39,087 INFO L225 Difference]: With dead ends: 779 [2020-12-23 15:00:39,088 INFO L226 Difference]: Without dead ends: 514 [2020-12-23 15:00:39,090 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 15:00:39,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-12-23 15:00:39,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 512. [2020-12-23 15:00:39,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-12-23 15:00:39,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 687 transitions. [2020-12-23 15:00:39,134 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 687 transitions. Word has length 22 [2020-12-23 15:00:39,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:39,136 INFO L481 AbstractCegarLoop]: Abstraction has 512 states and 687 transitions. [2020-12-23 15:00:39,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:00:39,136 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 687 transitions. [2020-12-23 15:00:39,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-23 15:00:39,146 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:39,146 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] [2020-12-23 15:00:39,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 15:00:39,148 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:39,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:39,149 INFO L82 PathProgramCache]: Analyzing trace with hash -976116528, now seen corresponding path program 1 times [2020-12-23 15:00:39,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:39,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280002662] [2020-12-23 15:00:39,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:39,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:00:39,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280002662] [2020-12-23 15:00:39,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724666458] [2020-12-23 15:00:39,410 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 15:00:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:39,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 15:00:39,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:00:40,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:00:40,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 15:00:40,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-12-23 15:00:40,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403925776] [2020-12-23 15:00:40,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 15:00:40,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:40,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 15:00:40,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:00:40,115 INFO L87 Difference]: Start difference. First operand 512 states and 687 transitions. Second operand 6 states. [2020-12-23 15:00:40,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:40,166 INFO L93 Difference]: Finished difference Result 1005 states and 1352 transitions. [2020-12-23 15:00:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:00:40,166 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-12-23 15:00:40,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:40,170 INFO L225 Difference]: With dead ends: 1005 [2020-12-23 15:00:40,170 INFO L226 Difference]: Without dead ends: 513 [2020-12-23 15:00:40,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:00:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2020-12-23 15:00:40,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2020-12-23 15:00:40,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 513 states. [2020-12-23 15:00:40,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 688 transitions. [2020-12-23 15:00:40,197 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 688 transitions. Word has length 29 [2020-12-23 15:00:40,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:40,198 INFO L481 AbstractCegarLoop]: Abstraction has 513 states and 688 transitions. [2020-12-23 15:00:40,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 15:00:40,198 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 688 transitions. [2020-12-23 15:00:40,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-23 15:00:40,199 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:40,199 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] [2020-12-23 15:00:40,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 15:00:40,415 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:40,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:40,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1674109708, now seen corresponding path program 2 times [2020-12-23 15:00:40,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:40,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474078669] [2020-12-23 15:00:40,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:40,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:00:40,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474078669] [2020-12-23 15:00:40,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678310282] [2020-12-23 15:00:40,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 15:00:41,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 15:00:41,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:00:41,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 15:00:41,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:00:41,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-23 15:00:41,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:00:41,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-12-23 15:00:41,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909679845] [2020-12-23 15:00:41,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:00:41,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:41,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:00:41,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:00:41,386 INFO L87 Difference]: Start difference. First operand 513 states and 688 transitions. Second operand 3 states. [2020-12-23 15:00:41,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:41,409 INFO L93 Difference]: Finished difference Result 513 states and 688 transitions. [2020-12-23 15:00:41,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:00:41,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-12-23 15:00:41,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:41,416 INFO L225 Difference]: With dead ends: 513 [2020-12-23 15:00:41,416 INFO L226 Difference]: Without dead ends: 511 [2020-12-23 15:00:41,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:00:41,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-12-23 15:00:41,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2020-12-23 15:00:41,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2020-12-23 15:00:41,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 686 transitions. [2020-12-23 15:00:41,451 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 686 transitions. Word has length 30 [2020-12-23 15:00:41,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:41,452 INFO L481 AbstractCegarLoop]: Abstraction has 511 states and 686 transitions. [2020-12-23 15:00:41,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:00:41,452 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 686 transitions. [2020-12-23 15:00:41,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-23 15:00:41,453 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:41,453 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] [2020-12-23 15:00:41,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:00:41,667 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:41,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:41,669 INFO L82 PathProgramCache]: Analyzing trace with hash -357794123, now seen corresponding path program 1 times [2020-12-23 15:00:41,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:41,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537097560] [2020-12-23 15:00:41,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:41,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:00:41,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537097560] [2020-12-23 15:00:41,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995636945] [2020-12-23 15:00:41,844 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:00:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:42,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 15:00:42,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:00:42,392 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:00:42,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 15:00:42,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-12-23 15:00:42,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009667953] [2020-12-23 15:00:42,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 15:00:42,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:42,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 15:00:42,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 15:00:42,396 INFO L87 Difference]: Start difference. First operand 511 states and 686 transitions. Second operand 8 states. [2020-12-23 15:00:42,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:42,443 INFO L93 Difference]: Finished difference Result 1002 states and 1349 transitions. [2020-12-23 15:00:42,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:00:42,444 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2020-12-23 15:00:42,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:42,447 INFO L225 Difference]: With dead ends: 1002 [2020-12-23 15:00:42,448 INFO L226 Difference]: Without dead ends: 512 [2020-12-23 15:00:42,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 15:00:42,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-12-23 15:00:42,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2020-12-23 15:00:42,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-12-23 15:00:42,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 687 transitions. [2020-12-23 15:00:42,472 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 687 transitions. Word has length 31 [2020-12-23 15:00:42,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:42,473 INFO L481 AbstractCegarLoop]: Abstraction has 512 states and 687 transitions. [2020-12-23 15:00:42,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 15:00:42,473 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 687 transitions. [2020-12-23 15:00:42,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-23 15:00:42,474 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:42,474 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 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 15:00:42,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:00:42,688 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:42,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:42,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1114341927, now seen corresponding path program 2 times [2020-12-23 15:00:42,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:42,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634660236] [2020-12-23 15:00:42,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:42,901 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:00:42,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634660236] [2020-12-23 15:00:42,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343193634] [2020-12-23 15:00:42,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:00:43,302 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 15:00:43,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:00:43,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 15:00:43,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:00:43,383 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 15:00:43,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:00:43,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-12-23 15:00:43,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817684930] [2020-12-23 15:00:43,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:00:43,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:43,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:00:43,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-23 15:00:43,386 INFO L87 Difference]: Start difference. First operand 512 states and 687 transitions. Second operand 4 states. [2020-12-23 15:00:43,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:43,435 INFO L93 Difference]: Finished difference Result 512 states and 687 transitions. [2020-12-23 15:00:43,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:00:43,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-12-23 15:00:43,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:43,439 INFO L225 Difference]: With dead ends: 512 [2020-12-23 15:00:43,439 INFO L226 Difference]: Without dead ends: 510 [2020-12-23 15:00:43,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-23 15:00:43,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-12-23 15:00:43,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2020-12-23 15:00:43,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2020-12-23 15:00:43,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 685 transitions. [2020-12-23 15:00:43,470 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 685 transitions. Word has length 32 [2020-12-23 15:00:43,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:43,470 INFO L481 AbstractCegarLoop]: Abstraction has 510 states and 685 transitions. [2020-12-23 15:00:43,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:00:43,471 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 685 transitions. [2020-12-23 15:00:43,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-23 15:00:43,471 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:43,472 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 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 15:00:43,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:00:43,686 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:43,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:43,687 INFO L82 PathProgramCache]: Analyzing trace with hash -184862086, now seen corresponding path program 1 times [2020-12-23 15:00:43,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:43,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834445666] [2020-12-23 15:00:43,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:43,880 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 15:00:43,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834445666] [2020-12-23 15:00:43,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:00:43,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 15:00:43,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297950753] [2020-12-23 15:00:43,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:00:43,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:43,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:00:43,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:00:43,886 INFO L87 Difference]: Start difference. First operand 510 states and 685 transitions. Second operand 3 states. [2020-12-23 15:00:43,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:43,912 INFO L93 Difference]: Finished difference Result 510 states and 685 transitions. [2020-12-23 15:00:43,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:00:43,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-12-23 15:00:43,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:43,916 INFO L225 Difference]: With dead ends: 510 [2020-12-23 15:00:43,917 INFO L226 Difference]: Without dead ends: 508 [2020-12-23 15:00:43,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:00:43,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-12-23 15:00:43,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2020-12-23 15:00:43,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-12-23 15:00:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 683 transitions. [2020-12-23 15:00:43,957 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 683 transitions. Word has length 33 [2020-12-23 15:00:43,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:43,959 INFO L481 AbstractCegarLoop]: Abstraction has 508 states and 683 transitions. [2020-12-23 15:00:43,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:00:43,959 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 683 transitions. [2020-12-23 15:00:43,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-23 15:00:43,960 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:43,960 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 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 15:00:43,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 15:00:43,961 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:43,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:43,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1435758077, now seen corresponding path program 1 times [2020-12-23 15:00:43,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:43,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492050419] [2020-12-23 15:00:43,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 15:00:44,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492050419] [2020-12-23 15:00:44,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:00:44,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 15:00:44,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770203601] [2020-12-23 15:00:44,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:00:44,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:44,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:00:44,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:00:44,096 INFO L87 Difference]: Start difference. First operand 508 states and 683 transitions. Second operand 3 states. [2020-12-23 15:00:44,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:44,199 INFO L93 Difference]: Finished difference Result 1469 states and 1988 transitions. [2020-12-23 15:00:44,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:00:44,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-12-23 15:00:44,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:44,206 INFO L225 Difference]: With dead ends: 1469 [2020-12-23 15:00:44,206 INFO L226 Difference]: Without dead ends: 984 [2020-12-23 15:00:44,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:00:44,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-12-23 15:00:44,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 981. [2020-12-23 15:00:44,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 981 states. [2020-12-23 15:00:44,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1327 transitions. [2020-12-23 15:00:44,298 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1327 transitions. Word has length 34 [2020-12-23 15:00:44,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:44,301 INFO L481 AbstractCegarLoop]: Abstraction has 981 states and 1327 transitions. [2020-12-23 15:00:44,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:00:44,301 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1327 transitions. [2020-12-23 15:00:44,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 15:00:44,303 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:44,303 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:44,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 15:00:44,304 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:44,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:44,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1558828124, now seen corresponding path program 1 times [2020-12-23 15:00:44,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:44,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014610833] [2020-12-23 15:00:44,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:44,441 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 15:00:44,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014610833] [2020-12-23 15:00:44,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:00:44,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 15:00:44,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680425499] [2020-12-23 15:00:44,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:00:44,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:44,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:00:44,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:00:44,445 INFO L87 Difference]: Start difference. First operand 981 states and 1327 transitions. Second operand 3 states. [2020-12-23 15:00:44,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:44,506 INFO L93 Difference]: Finished difference Result 981 states and 1327 transitions. [2020-12-23 15:00:44,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:00:44,506 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-12-23 15:00:44,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:44,516 INFO L225 Difference]: With dead ends: 981 [2020-12-23 15:00:44,516 INFO L226 Difference]: Without dead ends: 972 [2020-12-23 15:00:44,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:00:44,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2020-12-23 15:00:44,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 972. [2020-12-23 15:00:44,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 972 states. [2020-12-23 15:00:44,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1315 transitions. [2020-12-23 15:00:44,583 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1315 transitions. Word has length 35 [2020-12-23 15:00:44,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:44,584 INFO L481 AbstractCegarLoop]: Abstraction has 972 states and 1315 transitions. [2020-12-23 15:00:44,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:00:44,584 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1315 transitions. [2020-12-23 15:00:44,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-23 15:00:44,586 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:44,587 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:44,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 15:00:44,588 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:44,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:44,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1705953423, now seen corresponding path program 1 times [2020-12-23 15:00:44,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:44,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065407720] [2020-12-23 15:00:44,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 15:00:44,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065407720] [2020-12-23 15:00:44,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:00:44,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:00:44,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854725364] [2020-12-23 15:00:44,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:00:44,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:44,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:00:44,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:00:44,686 INFO L87 Difference]: Start difference. First operand 972 states and 1315 transitions. Second operand 3 states. [2020-12-23 15:00:44,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:44,849 INFO L93 Difference]: Finished difference Result 2375 states and 3210 transitions. [2020-12-23 15:00:44,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:00:44,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-23 15:00:44,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:44,859 INFO L225 Difference]: With dead ends: 2375 [2020-12-23 15:00:44,859 INFO L226 Difference]: Without dead ends: 1426 [2020-12-23 15:00:44,862 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 15:00:44,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-12-23 15:00:44,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1418. [2020-12-23 15:00:44,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1418 states. [2020-12-23 15:00:44,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 1911 transitions. [2020-12-23 15:00:44,952 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 1911 transitions. Word has length 61 [2020-12-23 15:00:44,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:44,952 INFO L481 AbstractCegarLoop]: Abstraction has 1418 states and 1911 transitions. [2020-12-23 15:00:44,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:00:44,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 1911 transitions. [2020-12-23 15:00:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-23 15:00:44,955 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:44,956 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-12-23 15:00:44,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 15:00:44,956 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:44,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:44,957 INFO L82 PathProgramCache]: Analyzing trace with hash -2079480930, now seen corresponding path program 1 times [2020-12-23 15:00:44,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:44,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175681631] [2020-12-23 15:00:44,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:45,115 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 15:00:45,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175681631] [2020-12-23 15:00:45,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:00:45,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 15:00:45,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105491688] [2020-12-23 15:00:45,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 15:00:45,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:45,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 15:00:45,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:00:45,117 INFO L87 Difference]: Start difference. First operand 1418 states and 1911 transitions. Second operand 5 states. [2020-12-23 15:00:45,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:45,568 INFO L93 Difference]: Finished difference Result 5797 states and 7806 transitions. [2020-12-23 15:00:45,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 15:00:45,569 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 79 [2020-12-23 15:00:45,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:45,595 INFO L225 Difference]: With dead ends: 5797 [2020-12-23 15:00:45,595 INFO L226 Difference]: Without dead ends: 4402 [2020-12-23 15:00:45,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 15:00:45,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4402 states. [2020-12-23 15:00:45,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4402 to 1426. [2020-12-23 15:00:45,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-12-23 15:00:45,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1917 transitions. [2020-12-23 15:00:45,766 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1917 transitions. Word has length 79 [2020-12-23 15:00:45,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:45,768 INFO L481 AbstractCegarLoop]: Abstraction has 1426 states and 1917 transitions. [2020-12-23 15:00:45,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 15:00:45,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1917 transitions. [2020-12-23 15:00:45,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-23 15:00:45,771 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:45,771 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-12-23 15:00:45,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 15:00:45,772 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:45,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:45,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1204369116, now seen corresponding path program 1 times [2020-12-23 15:00:45,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:45,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157666804] [2020-12-23 15:00:45,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:45,940 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-23 15:00:45,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157666804] [2020-12-23 15:00:45,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316861637] [2020-12-23 15:00:45,941 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:00:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:46,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 15:00:46,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:00:46,652 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-23 15:00:46,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 15:00:46,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-12-23 15:00:46,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671041631] [2020-12-23 15:00:46,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 15:00:46,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:46,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 15:00:46,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2020-12-23 15:00:46,658 INFO L87 Difference]: Start difference. First operand 1426 states and 1917 transitions. Second operand 10 states. [2020-12-23 15:00:46,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:46,817 INFO L93 Difference]: Finished difference Result 2831 states and 3810 transitions. [2020-12-23 15:00:46,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 15:00:46,817 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2020-12-23 15:00:46,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:46,825 INFO L225 Difference]: With dead ends: 2831 [2020-12-23 15:00:46,826 INFO L226 Difference]: Without dead ends: 1427 [2020-12-23 15:00:46,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2020-12-23 15:00:46,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2020-12-23 15:00:46,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1427. [2020-12-23 15:00:46,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1427 states. [2020-12-23 15:00:46,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1918 transitions. [2020-12-23 15:00:46,950 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1918 transitions. Word has length 79 [2020-12-23 15:00:46,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:46,950 INFO L481 AbstractCegarLoop]: Abstraction has 1427 states and 1918 transitions. [2020-12-23 15:00:46,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 15:00:46,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1918 transitions. [2020-12-23 15:00:46,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-23 15:00:46,953 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:46,953 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 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] [2020-12-23 15:00:47,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-23 15:00:47,171 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:47,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:47,172 INFO L82 PathProgramCache]: Analyzing trace with hash 275832320, now seen corresponding path program 2 times [2020-12-23 15:00:47,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:47,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477236133] [2020-12-23 15:00:47,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:47,357 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-23 15:00:47,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477236133] [2020-12-23 15:00:47,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:00:47,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 15:00:47,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576161869] [2020-12-23 15:00:47,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 15:00:47,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:47,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 15:00:47,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:00:47,360 INFO L87 Difference]: Start difference. First operand 1427 states and 1918 transitions. Second operand 5 states. [2020-12-23 15:00:47,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:47,965 INFO L93 Difference]: Finished difference Result 5844 states and 7846 transitions. [2020-12-23 15:00:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 15:00:47,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-12-23 15:00:47,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:47,991 INFO L225 Difference]: With dead ends: 5844 [2020-12-23 15:00:47,992 INFO L226 Difference]: Without dead ends: 4441 [2020-12-23 15:00:47,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 1 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 15:00:48,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4441 states. [2020-12-23 15:00:48,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4441 to 1439. [2020-12-23 15:00:48,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1439 states. [2020-12-23 15:00:48,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1930 transitions. [2020-12-23 15:00:48,166 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1930 transitions. Word has length 80 [2020-12-23 15:00:48,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:48,166 INFO L481 AbstractCegarLoop]: Abstraction has 1439 states and 1930 transitions. [2020-12-23 15:00:48,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 15:00:48,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1930 transitions. [2020-12-23 15:00:48,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 15:00:48,169 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:48,169 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 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] [2020-12-23 15:00:48,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 15:00:48,170 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:48,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:48,170 INFO L82 PathProgramCache]: Analyzing trace with hash -141489372, now seen corresponding path program 1 times [2020-12-23 15:00:48,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:48,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644288308] [2020-12-23 15:00:48,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:48,445 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-23 15:00:48,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644288308] [2020-12-23 15:00:48,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:00:48,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 15:00:48,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245329876] [2020-12-23 15:00:48,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 15:00:48,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:48,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 15:00:48,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:00:48,448 INFO L87 Difference]: Start difference. First operand 1439 states and 1930 transitions. Second operand 6 states. [2020-12-23 15:00:49,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:49,666 INFO L93 Difference]: Finished difference Result 9368 states and 12770 transitions. [2020-12-23 15:00:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 15:00:49,667 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2020-12-23 15:00:49,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:49,712 INFO L225 Difference]: With dead ends: 9368 [2020-12-23 15:00:49,713 INFO L226 Difference]: Without dead ends: 7953 [2020-12-23 15:00:49,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-12-23 15:00:49,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7953 states. [2020-12-23 15:00:50,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7953 to 2301. [2020-12-23 15:00:50,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2301 states. [2020-12-23 15:00:50,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3133 transitions. [2020-12-23 15:00:50,055 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3133 transitions. Word has length 82 [2020-12-23 15:00:50,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:50,056 INFO L481 AbstractCegarLoop]: Abstraction has 2301 states and 3133 transitions. [2020-12-23 15:00:50,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 15:00:50,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3133 transitions. [2020-12-23 15:00:50,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 15:00:50,060 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:50,060 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-12-23 15:00:50,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 15:00:50,061 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:50,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:50,061 INFO L82 PathProgramCache]: Analyzing trace with hash 2112576136, now seen corresponding path program 1 times [2020-12-23 15:00:50,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:50,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524612286] [2020-12-23 15:00:50,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:50,162 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-23 15:00:50,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524612286] [2020-12-23 15:00:50,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:00:50,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:00:50,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792062478] [2020-12-23 15:00:50,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:00:50,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:50,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:00:50,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:00:50,165 INFO L87 Difference]: Start difference. First operand 2301 states and 3133 transitions. Second operand 3 states. [2020-12-23 15:00:50,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:50,577 INFO L93 Difference]: Finished difference Result 5514 states and 7532 transitions. [2020-12-23 15:00:50,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:00:50,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-12-23 15:00:50,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:50,596 INFO L225 Difference]: With dead ends: 5514 [2020-12-23 15:00:50,596 INFO L226 Difference]: Without dead ends: 3237 [2020-12-23 15:00:50,601 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 15:00:50,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3237 states. [2020-12-23 15:00:50,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3237 to 3211. [2020-12-23 15:00:50,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3211 states. [2020-12-23 15:00:50,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 4387 transitions. [2020-12-23 15:00:50,955 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 4387 transitions. Word has length 109 [2020-12-23 15:00:50,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:50,955 INFO L481 AbstractCegarLoop]: Abstraction has 3211 states and 4387 transitions. [2020-12-23 15:00:50,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:00:50,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 4387 transitions. [2020-12-23 15:00:50,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 15:00:50,961 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:50,961 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-12-23 15:00:50,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 15:00:50,962 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:50,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:50,963 INFO L82 PathProgramCache]: Analyzing trace with hash 517970430, now seen corresponding path program 2 times [2020-12-23 15:00:50,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:50,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583606210] [2020-12-23 15:00:50,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 15:00:51,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583606210] [2020-12-23 15:00:51,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395964555] [2020-12-23 15:00:51,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:00:51,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 15:00:51,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:00:51,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:00:51,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:00:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 15:00:52,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:00:52,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-12-23 15:00:52,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353285279] [2020-12-23 15:00:52,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:00:52,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:52,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:00:52,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:00:52,118 INFO L87 Difference]: Start difference. First operand 3211 states and 4387 transitions. Second operand 4 states. [2020-12-23 15:00:53,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:53,278 INFO L93 Difference]: Finished difference Result 9589 states and 13108 transitions. [2020-12-23 15:00:53,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:00:53,279 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2020-12-23 15:00:53,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:53,319 INFO L225 Difference]: With dead ends: 9589 [2020-12-23 15:00:53,320 INFO L226 Difference]: Without dead ends: 9581 [2020-12-23 15:00:53,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 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 15:00:53,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9581 states. [2020-12-23 15:00:54,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9581 to 9163. [2020-12-23 15:00:54,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9163 states. [2020-12-23 15:00:54,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9163 states to 9163 states and 12615 transitions. [2020-12-23 15:00:54,368 INFO L78 Accepts]: Start accepts. Automaton has 9163 states and 12615 transitions. Word has length 109 [2020-12-23 15:00:54,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:54,369 INFO L481 AbstractCegarLoop]: Abstraction has 9163 states and 12615 transitions. [2020-12-23 15:00:54,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:00:54,369 INFO L276 IsEmpty]: Start isEmpty. Operand 9163 states and 12615 transitions. [2020-12-23 15:00:54,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 15:00:54,386 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:54,387 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-12-23 15:00:54,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:00:54,601 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:54,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:54,602 INFO L82 PathProgramCache]: Analyzing trace with hash 502451712, now seen corresponding path program 1 times [2020-12-23 15:00:54,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:54,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177134173] [2020-12-23 15:00:54,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:54,742 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 15:00:54,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177134173] [2020-12-23 15:00:54,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:00:54,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:00:54,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483555697] [2020-12-23 15:00:54,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:00:54,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:54,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:00:54,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:00:54,749 INFO L87 Difference]: Start difference. First operand 9163 states and 12615 transitions. Second operand 4 states. [2020-12-23 15:00:56,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:00:56,723 INFO L93 Difference]: Finished difference Result 33614 states and 46435 transitions. [2020-12-23 15:00:56,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:00:56,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2020-12-23 15:00:56,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:00:56,790 INFO L225 Difference]: With dead ends: 33614 [2020-12-23 15:00:56,790 INFO L226 Difference]: Without dead ends: 24475 [2020-12-23 15:00:56,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 15:00:56,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24475 states. [2020-12-23 15:00:57,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24475 to 9195. [2020-12-23 15:00:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9195 states. [2020-12-23 15:00:57,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9195 states to 9195 states and 12647 transitions. [2020-12-23 15:00:57,998 INFO L78 Accepts]: Start accepts. Automaton has 9195 states and 12647 transitions. Word has length 109 [2020-12-23 15:00:57,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:00:57,998 INFO L481 AbstractCegarLoop]: Abstraction has 9195 states and 12647 transitions. [2020-12-23 15:00:57,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:00:57,999 INFO L276 IsEmpty]: Start isEmpty. Operand 9195 states and 12647 transitions. [2020-12-23 15:00:58,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-23 15:00:58,012 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:00:58,012 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 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 15:00:58,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 15:00:58,012 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:00:58,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:00:58,013 INFO L82 PathProgramCache]: Analyzing trace with hash -576657306, now seen corresponding path program 1 times [2020-12-23 15:00:58,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:00:58,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430853656] [2020-12-23 15:00:58,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:00:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:00:58,163 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-12-23 15:00:58,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430853656] [2020-12-23 15:00:58,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:00:58,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:00:58,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583683257] [2020-12-23 15:00:58,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:00:58,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:00:58,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:00:58,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:00:58,166 INFO L87 Difference]: Start difference. First operand 9195 states and 12647 transitions. Second operand 4 states. [2020-12-23 15:01:01,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:01:01,221 INFO L93 Difference]: Finished difference Result 34792 states and 48039 transitions. [2020-12-23 15:01:01,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:01:01,222 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2020-12-23 15:01:01,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:01:01,295 INFO L225 Difference]: With dead ends: 34792 [2020-12-23 15:01:01,295 INFO L226 Difference]: Without dead ends: 30159 [2020-12-23 15:01:01,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 15:01:01,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30159 states. [2020-12-23 15:01:02,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30159 to 9243. [2020-12-23 15:01:02,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9243 states. [2020-12-23 15:01:02,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9243 states to 9243 states and 12695 transitions. [2020-12-23 15:01:02,578 INFO L78 Accepts]: Start accepts. Automaton has 9243 states and 12695 transitions. Word has length 110 [2020-12-23 15:01:02,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:01:02,579 INFO L481 AbstractCegarLoop]: Abstraction has 9243 states and 12695 transitions. [2020-12-23 15:01:02,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:01:02,579 INFO L276 IsEmpty]: Start isEmpty. Operand 9243 states and 12695 transitions. [2020-12-23 15:01:02,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-23 15:01:02,591 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:01:02,591 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 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 15:01:02,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 15:01:02,591 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:01:02,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:01:02,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1799824277, now seen corresponding path program 1 times [2020-12-23 15:01:02,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:01:02,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229473921] [2020-12-23 15:01:02,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:01:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:01:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-12-23 15:01:02,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229473921] [2020-12-23 15:01:02,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:01:02,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:01:02,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075334557] [2020-12-23 15:01:02,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:01:02,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:01:02,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:01:02,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:01:02,776 INFO L87 Difference]: Start difference. First operand 9243 states and 12695 transitions. Second operand 4 states. [2020-12-23 15:01:04,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:01:04,349 INFO L93 Difference]: Finished difference Result 13829 states and 19020 transitions. [2020-12-23 15:01:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:01:04,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2020-12-23 15:01:04,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:01:04,375 INFO L225 Difference]: With dead ends: 13829 [2020-12-23 15:01:04,375 INFO L226 Difference]: Without dead ends: 13827 [2020-12-23 15:01:04,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:01:04,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13827 states. [2020-12-23 15:01:06,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13827 to 13817. [2020-12-23 15:01:06,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13817 states. [2020-12-23 15:01:06,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13817 states to 13817 states and 18999 transitions. [2020-12-23 15:01:06,034 INFO L78 Accepts]: Start accepts. Automaton has 13817 states and 18999 transitions. Word has length 112 [2020-12-23 15:01:06,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:01:06,034 INFO L481 AbstractCegarLoop]: Abstraction has 13817 states and 18999 transitions. [2020-12-23 15:01:06,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:01:06,034 INFO L276 IsEmpty]: Start isEmpty. Operand 13817 states and 18999 transitions. [2020-12-23 15:01:06,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-23 15:01:06,045 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:01:06,046 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 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 15:01:06,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 15:01:06,046 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:01:06,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:01:06,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1659275667, now seen corresponding path program 1 times [2020-12-23 15:01:06,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:01:06,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679375439] [2020-12-23 15:01:06,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:01:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:01:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-12-23 15:01:06,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679375439] [2020-12-23 15:01:06,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:01:06,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 15:01:06,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182353490] [2020-12-23 15:01:06,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 15:01:06,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:01:06,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 15:01:06,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-23 15:01:06,217 INFO L87 Difference]: Start difference. First operand 13817 states and 18999 transitions. Second operand 7 states. [2020-12-23 15:01:10,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:01:10,723 INFO L93 Difference]: Finished difference Result 57927 states and 80008 transitions. [2020-12-23 15:01:10,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 15:01:10,724 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-12-23 15:01:10,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:01:10,814 INFO L225 Difference]: With dead ends: 57927 [2020-12-23 15:01:10,815 INFO L226 Difference]: Without dead ends: 44134 [2020-12-23 15:01:10,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-12-23 15:01:10,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44134 states. [2020-12-23 15:01:12,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44134 to 13168. [2020-12-23 15:01:12,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13168 states. [2020-12-23 15:01:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13168 states to 13168 states and 18026 transitions. [2020-12-23 15:01:12,716 INFO L78 Accepts]: Start accepts. Automaton has 13168 states and 18026 transitions. Word has length 112 [2020-12-23 15:01:12,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:01:12,717 INFO L481 AbstractCegarLoop]: Abstraction has 13168 states and 18026 transitions. [2020-12-23 15:01:12,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 15:01:12,717 INFO L276 IsEmpty]: Start isEmpty. Operand 13168 states and 18026 transitions. [2020-12-23 15:01:12,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 15:01:12,727 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:01:12,727 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:01:12,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 15:01:12,727 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:01:12,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:01:12,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1740924070, now seen corresponding path program 1 times [2020-12-23 15:01:12,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:01:12,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913269468] [2020-12-23 15:01:12,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:01:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:01:12,890 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-12-23 15:01:12,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913269468] [2020-12-23 15:01:12,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:01:12,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:01:12,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213099037] [2020-12-23 15:01:12,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:01:12,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:01:12,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:01:12,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:01:12,892 INFO L87 Difference]: Start difference. First operand 13168 states and 18026 transitions. Second operand 3 states. [2020-12-23 15:01:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:01:13,908 INFO L93 Difference]: Finished difference Result 20096 states and 27608 transitions. [2020-12-23 15:01:13,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:01:13,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-12-23 15:01:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:01:13,921 INFO L225 Difference]: With dead ends: 20096 [2020-12-23 15:01:13,921 INFO L226 Difference]: Without dead ends: 6103 [2020-12-23 15:01:13,941 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 15:01:13,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6103 states. [2020-12-23 15:01:14,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6103 to 5009. [2020-12-23 15:01:14,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5009 states. [2020-12-23 15:01:14,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5009 states to 5009 states and 6778 transitions. [2020-12-23 15:01:14,509 INFO L78 Accepts]: Start accepts. Automaton has 5009 states and 6778 transitions. Word has length 116 [2020-12-23 15:01:14,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:01:14,509 INFO L481 AbstractCegarLoop]: Abstraction has 5009 states and 6778 transitions. [2020-12-23 15:01:14,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:01:14,510 INFO L276 IsEmpty]: Start isEmpty. Operand 5009 states and 6778 transitions. [2020-12-23 15:01:14,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-23 15:01:14,516 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:01:14,516 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:01:14,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 15:01:14,516 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:01:14,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:01:14,517 INFO L82 PathProgramCache]: Analyzing trace with hash -180779501, now seen corresponding path program 1 times [2020-12-23 15:01:14,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:01:14,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989878717] [2020-12-23 15:01:14,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:01:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:01:14,672 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 15:01:14,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989878717] [2020-12-23 15:01:14,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:01:14,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:01:14,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206874536] [2020-12-23 15:01:14,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:01:14,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:01:14,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:01:14,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:01:14,674 INFO L87 Difference]: Start difference. First operand 5009 states and 6778 transitions. Second operand 3 states. [2020-12-23 15:01:15,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:01:15,500 INFO L93 Difference]: Finished difference Result 9204 states and 12556 transitions. [2020-12-23 15:01:15,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:01:15,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-12-23 15:01:15,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:01:15,507 INFO L225 Difference]: With dead ends: 9204 [2020-12-23 15:01:15,508 INFO L226 Difference]: Without dead ends: 4807 [2020-12-23 15:01:15,515 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 15:01:15,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4807 states. [2020-12-23 15:01:16,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4807 to 4745. [2020-12-23 15:01:16,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4745 states. [2020-12-23 15:01:16,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4745 states to 4745 states and 6402 transitions. [2020-12-23 15:01:16,030 INFO L78 Accepts]: Start accepts. Automaton has 4745 states and 6402 transitions. Word has length 118 [2020-12-23 15:01:16,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:01:16,030 INFO L481 AbstractCegarLoop]: Abstraction has 4745 states and 6402 transitions. [2020-12-23 15:01:16,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:01:16,030 INFO L276 IsEmpty]: Start isEmpty. Operand 4745 states and 6402 transitions. [2020-12-23 15:01:16,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-12-23 15:01:16,035 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:01:16,035 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 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 15:01:16,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 15:01:16,036 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:01:16,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:01:16,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1700147490, now seen corresponding path program 1 times [2020-12-23 15:01:16,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:01:16,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193057773] [2020-12-23 15:01:16,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:01:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:01:16,175 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-12-23 15:01:16,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193057773] [2020-12-23 15:01:16,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:01:16,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:01:16,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567702408] [2020-12-23 15:01:16,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:01:16,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:01:16,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:01:16,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:01:16,177 INFO L87 Difference]: Start difference. First operand 4745 states and 6402 transitions. Second operand 3 states. [2020-12-23 15:01:16,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:01:16,866 INFO L93 Difference]: Finished difference Result 11292 states and 15420 transitions. [2020-12-23 15:01:16,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:01:16,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-12-23 15:01:16,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:01:16,876 INFO L225 Difference]: With dead ends: 11292 [2020-12-23 15:01:16,876 INFO L226 Difference]: Without dead ends: 6571 [2020-12-23 15:01:16,884 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 15:01:16,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6571 states. [2020-12-23 15:01:17,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6571 to 6558. [2020-12-23 15:01:17,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6558 states. [2020-12-23 15:01:17,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6558 states to 6558 states and 8866 transitions. [2020-12-23 15:01:17,466 INFO L78 Accepts]: Start accepts. Automaton has 6558 states and 8866 transitions. Word has length 127 [2020-12-23 15:01:17,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:01:17,467 INFO L481 AbstractCegarLoop]: Abstraction has 6558 states and 8866 transitions. [2020-12-23 15:01:17,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:01:17,467 INFO L276 IsEmpty]: Start isEmpty. Operand 6558 states and 8866 transitions. [2020-12-23 15:01:17,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-12-23 15:01:17,472 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:01:17,472 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 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 15:01:17,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 15:01:17,472 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:01:17,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:01:17,474 INFO L82 PathProgramCache]: Analyzing trace with hash -927726502, now seen corresponding path program 1 times [2020-12-23 15:01:17,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:01:17,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167776166] [2020-12-23 15:01:17,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:01:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:01:17,684 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:01:17,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167776166] [2020-12-23 15:01:17,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:01:17,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:01:17,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876579464] [2020-12-23 15:01:17,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:01:17,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:01:17,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:01:17,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:01:17,687 INFO L87 Difference]: Start difference. First operand 6558 states and 8866 transitions. Second operand 4 states. [2020-12-23 15:01:18,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:01:18,837 INFO L93 Difference]: Finished difference Result 17402 states and 23642 transitions. [2020-12-23 15:01:18,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:01:18,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-12-23 15:01:18,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:01:18,852 INFO L225 Difference]: With dead ends: 17402 [2020-12-23 15:01:18,852 INFO L226 Difference]: Without dead ends: 10810 [2020-12-23 15:01:18,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 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 15:01:18,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2020-12-23 15:01:19,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 6558. [2020-12-23 15:01:19,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6558 states. [2020-12-23 15:01:19,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6558 states to 6558 states and 8837 transitions. [2020-12-23 15:01:19,678 INFO L78 Accepts]: Start accepts. Automaton has 6558 states and 8837 transitions. Word has length 127 [2020-12-23 15:01:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:01:19,678 INFO L481 AbstractCegarLoop]: Abstraction has 6558 states and 8837 transitions. [2020-12-23 15:01:19,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:01:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 6558 states and 8837 transitions. [2020-12-23 15:01:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-12-23 15:01:19,682 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:01:19,682 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 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] [2020-12-23 15:01:19,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 15:01:19,682 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:01:19,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:01:19,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1729926998, now seen corresponding path program 1 times [2020-12-23 15:01:19,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:01:19,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998691217] [2020-12-23 15:01:19,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:01:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:01:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:01:19,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998691217] [2020-12-23 15:01:19,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:01:19,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 15:01:19,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783495280] [2020-12-23 15:01:19,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 15:01:19,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:01:19,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 15:01:19,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-23 15:01:19,882 INFO L87 Difference]: Start difference. First operand 6558 states and 8837 transitions. Second operand 7 states. [2020-12-23 15:01:22,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:01:22,583 INFO L93 Difference]: Finished difference Result 39464 states and 54015 transitions. [2020-12-23 15:01:22,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 15:01:22,584 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2020-12-23 15:01:22,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:01:22,629 INFO L225 Difference]: With dead ends: 39464 [2020-12-23 15:01:22,629 INFO L226 Difference]: Without dead ends: 32930 [2020-12-23 15:01:22,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-12-23 15:01:22,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32930 states. [2020-12-23 15:01:23,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32930 to 6703. [2020-12-23 15:01:23,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6703 states. [2020-12-23 15:01:23,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6703 states to 6703 states and 8982 transitions. [2020-12-23 15:01:23,656 INFO L78 Accepts]: Start accepts. Automaton has 6703 states and 8982 transitions. Word has length 129 [2020-12-23 15:01:23,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:01:23,656 INFO L481 AbstractCegarLoop]: Abstraction has 6703 states and 8982 transitions. [2020-12-23 15:01:23,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 15:01:23,656 INFO L276 IsEmpty]: Start isEmpty. Operand 6703 states and 8982 transitions. [2020-12-23 15:01:23,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-12-23 15:01:23,660 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:01:23,661 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 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] [2020-12-23 15:01:23,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-23 15:01:23,661 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:01:23,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:01:23,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1559724230, now seen corresponding path program 1 times [2020-12-23 15:01:23,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:01:23,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191060374] [2020-12-23 15:01:23,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:01:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:01:24,426 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-23 15:01:24,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191060374] [2020-12-23 15:01:24,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:01:24,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-23 15:01:24,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59571044] [2020-12-23 15:01:24,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 15:01:24,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:01:24,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 15:01:24,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-12-23 15:01:24,429 INFO L87 Difference]: Start difference. First operand 6703 states and 8982 transitions. Second operand 19 states. [2020-12-23 15:01:49,196 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-23 15:01:49,631 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2020-12-23 15:01:55,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:01:55,973 INFO L93 Difference]: Finished difference Result 94390 states and 130165 transitions. [2020-12-23 15:01:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 292 states. [2020-12-23 15:01:55,974 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 131 [2020-12-23 15:01:55,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:01:56,196 INFO L225 Difference]: With dead ends: 94390 [2020-12-23 15:01:56,196 INFO L226 Difference]: Without dead ends: 88501 [2020-12-23 15:01:56,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 305 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39887 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=11374, Invalid=82568, Unknown=0, NotChecked=0, Total=93942 [2020-12-23 15:01:56,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88501 states. [2020-12-23 15:01:58,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88501 to 9132. [2020-12-23 15:01:58,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9132 states. [2020-12-23 15:01:58,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9132 states to 9132 states and 12229 transitions. [2020-12-23 15:01:58,118 INFO L78 Accepts]: Start accepts. Automaton has 9132 states and 12229 transitions. Word has length 131 [2020-12-23 15:01:58,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:01:58,118 INFO L481 AbstractCegarLoop]: Abstraction has 9132 states and 12229 transitions. [2020-12-23 15:01:58,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 15:01:58,118 INFO L276 IsEmpty]: Start isEmpty. Operand 9132 states and 12229 transitions. [2020-12-23 15:01:58,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-12-23 15:01:58,124 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:01:58,124 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 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] [2020-12-23 15:01:58,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-23 15:01:58,124 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:01:58,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:01:58,125 INFO L82 PathProgramCache]: Analyzing trace with hash -2079661250, now seen corresponding path program 1 times [2020-12-23 15:01:58,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:01:58,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438712103] [2020-12-23 15:01:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:01:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:01:58,282 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-12-23 15:01:58,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438712103] [2020-12-23 15:01:58,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:01:58,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:01:58,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349379278] [2020-12-23 15:01:58,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:01:58,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:01:58,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:01:58,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:01:58,285 INFO L87 Difference]: Start difference. First operand 9132 states and 12229 transitions. Second operand 3 states. [2020-12-23 15:01:59,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:01:59,944 INFO L93 Difference]: Finished difference Result 17738 states and 23936 transitions. [2020-12-23 15:01:59,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:01:59,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-12-23 15:01:59,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:01:59,955 INFO L225 Difference]: With dead ends: 17738 [2020-12-23 15:01:59,956 INFO L226 Difference]: Without dead ends: 8630 [2020-12-23 15:01:59,962 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 15:01:59,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8630 states. [2020-12-23 15:02:01,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8630 to 8396. [2020-12-23 15:02:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8396 states. [2020-12-23 15:02:01,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8396 states to 8396 states and 11252 transitions. [2020-12-23 15:02:01,069 INFO L78 Accepts]: Start accepts. Automaton has 8396 states and 11252 transitions. Word has length 131 [2020-12-23 15:02:01,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:02:01,069 INFO L481 AbstractCegarLoop]: Abstraction has 8396 states and 11252 transitions. [2020-12-23 15:02:01,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:02:01,069 INFO L276 IsEmpty]: Start isEmpty. Operand 8396 states and 11252 transitions. [2020-12-23 15:02:01,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-12-23 15:02:01,072 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:02:01,072 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:02:01,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-23 15:02:01,073 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:02:01,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:02:01,073 INFO L82 PathProgramCache]: Analyzing trace with hash 2025495712, now seen corresponding path program 1 times [2020-12-23 15:02:01,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:02:01,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052692905] [2020-12-23 15:02:01,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:02:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:02:01,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052692905] [2020-12-23 15:02:01,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:02:01,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 15:02:01,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306538482] [2020-12-23 15:02:01,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 15:02:01,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:02:01,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 15:02:01,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-23 15:02:01,535 INFO L87 Difference]: Start difference. First operand 8396 states and 11252 transitions. Second operand 8 states. [2020-12-23 15:02:04,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:02:04,275 INFO L93 Difference]: Finished difference Result 20375 states and 27243 transitions. [2020-12-23 15:02:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 15:02:04,276 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-12-23 15:02:04,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:02:04,293 INFO L225 Difference]: With dead ends: 20375 [2020-12-23 15:02:04,294 INFO L226 Difference]: Without dead ends: 13130 [2020-12-23 15:02:04,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-12-23 15:02:04,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13130 states. [2020-12-23 15:02:05,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13130 to 8396. [2020-12-23 15:02:05,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8396 states. [2020-12-23 15:02:05,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8396 states to 8396 states and 11236 transitions. [2020-12-23 15:02:05,706 INFO L78 Accepts]: Start accepts. Automaton has 8396 states and 11236 transitions. Word has length 133 [2020-12-23 15:02:05,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:02:05,706 INFO L481 AbstractCegarLoop]: Abstraction has 8396 states and 11236 transitions. [2020-12-23 15:02:05,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 15:02:05,707 INFO L276 IsEmpty]: Start isEmpty. Operand 8396 states and 11236 transitions. [2020-12-23 15:02:05,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-12-23 15:02:05,711 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:02:05,711 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:02:05,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-23 15:02:05,711 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:02:05,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:02:05,712 INFO L82 PathProgramCache]: Analyzing trace with hash -439141703, now seen corresponding path program 1 times [2020-12-23 15:02:05,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:02:05,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094389790] [2020-12-23 15:02:05,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:02:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 15:02:05,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094389790] [2020-12-23 15:02:05,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487712834] [2020-12-23 15:02:05,974 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:02:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:06,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 15:02:06,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:02:06,770 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 15:02:06,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:02:06,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2020-12-23 15:02:06,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358629699] [2020-12-23 15:02:06,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 15:02:06,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:02:06,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 15:02:06,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-23 15:02:06,773 INFO L87 Difference]: Start difference. First operand 8396 states and 11236 transitions. Second operand 5 states. [2020-12-23 15:02:10,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:02:10,336 INFO L93 Difference]: Finished difference Result 28583 states and 38054 transitions. [2020-12-23 15:02:10,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 15:02:10,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-12-23 15:02:10,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:02:10,364 INFO L225 Difference]: With dead ends: 28583 [2020-12-23 15:02:10,364 INFO L226 Difference]: Without dead ends: 22788 [2020-12-23 15:02:10,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-23 15:02:10,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22788 states. [2020-12-23 15:02:11,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22788 to 8732. [2020-12-23 15:02:11,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8732 states. [2020-12-23 15:02:11,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8732 states to 8732 states and 11716 transitions. [2020-12-23 15:02:11,778 INFO L78 Accepts]: Start accepts. Automaton has 8732 states and 11716 transitions. Word has length 143 [2020-12-23 15:02:11,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:02:11,778 INFO L481 AbstractCegarLoop]: Abstraction has 8732 states and 11716 transitions. [2020-12-23 15:02:11,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 15:02:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 8732 states and 11716 transitions. [2020-12-23 15:02:11,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-12-23 15:02:11,782 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:02:11,782 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 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] [2020-12-23 15:02:11,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-23 15:02:11,983 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:02:11,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:02:11,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1401355552, now seen corresponding path program 1 times [2020-12-23 15:02:11,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:02:11,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888942432] [2020-12-23 15:02:11,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:02:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:12,171 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:02:12,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888942432] [2020-12-23 15:02:12,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648264974] [2020-12-23 15:02:12,172 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:02:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:12,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 1952 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 15:02:12,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:02:13,030 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:02:13,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 15:02:13,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-12-23 15:02:13,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581681820] [2020-12-23 15:02:13,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 15:02:13,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:02:13,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 15:02:13,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-23 15:02:13,033 INFO L87 Difference]: Start difference. First operand 8732 states and 11716 transitions. Second operand 7 states. [2020-12-23 15:02:15,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:02:15,691 INFO L93 Difference]: Finished difference Result 22975 states and 30819 transitions. [2020-12-23 15:02:15,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:02:15,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 148 [2020-12-23 15:02:15,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:02:15,711 INFO L225 Difference]: With dead ends: 22975 [2020-12-23 15:02:15,711 INFO L226 Difference]: Without dead ends: 15394 [2020-12-23 15:02:15,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-12-23 15:02:15,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15394 states. [2020-12-23 15:02:17,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15394 to 8764. [2020-12-23 15:02:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8764 states. [2020-12-23 15:02:17,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8764 states to 8764 states and 11748 transitions. [2020-12-23 15:02:17,139 INFO L78 Accepts]: Start accepts. Automaton has 8764 states and 11748 transitions. Word has length 148 [2020-12-23 15:02:17,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:02:17,139 INFO L481 AbstractCegarLoop]: Abstraction has 8764 states and 11748 transitions. [2020-12-23 15:02:17,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 15:02:17,140 INFO L276 IsEmpty]: Start isEmpty. Operand 8764 states and 11748 transitions. [2020-12-23 15:02:17,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-12-23 15:02:17,143 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:02:17,144 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 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] [2020-12-23 15:02:17,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:02:17,345 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:02:17,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:02:17,346 INFO L82 PathProgramCache]: Analyzing trace with hash -97134882, now seen corresponding path program 1 times [2020-12-23 15:02:17,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:02:17,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287246006] [2020-12-23 15:02:17,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:02:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:17,525 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:02:17,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287246006] [2020-12-23 15:02:17,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:02:17,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:02:17,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662868020] [2020-12-23 15:02:17,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:02:17,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:02:17,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:02:17,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:02:17,528 INFO L87 Difference]: Start difference. First operand 8764 states and 11748 transitions. Second operand 4 states. [2020-12-23 15:02:20,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:02:20,070 INFO L93 Difference]: Finished difference Result 22054 states and 29500 transitions. [2020-12-23 15:02:20,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:02:20,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-12-23 15:02:20,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:02:20,087 INFO L225 Difference]: With dead ends: 22054 [2020-12-23 15:02:20,088 INFO L226 Difference]: Without dead ends: 14441 [2020-12-23 15:02:20,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 15:02:20,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14441 states. [2020-12-23 15:02:21,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14441 to 8764. [2020-12-23 15:02:21,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8764 states. [2020-12-23 15:02:21,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8764 states to 8764 states and 11716 transitions. [2020-12-23 15:02:21,575 INFO L78 Accepts]: Start accepts. Automaton has 8764 states and 11716 transitions. Word has length 148 [2020-12-23 15:02:21,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:02:21,576 INFO L481 AbstractCegarLoop]: Abstraction has 8764 states and 11716 transitions. [2020-12-23 15:02:21,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:02:21,576 INFO L276 IsEmpty]: Start isEmpty. Operand 8764 states and 11716 transitions. [2020-12-23 15:02:21,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-12-23 15:02:21,580 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:02:21,580 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 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] [2020-12-23 15:02:21,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-23 15:02:21,580 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:02:21,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:02:21,581 INFO L82 PathProgramCache]: Analyzing trace with hash 559670454, now seen corresponding path program 1 times [2020-12-23 15:02:21,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:02:21,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446433553] [2020-12-23 15:02:21,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:02:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:21,775 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-23 15:02:21,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446433553] [2020-12-23 15:02:21,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:02:21,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:02:21,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602328094] [2020-12-23 15:02:21,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:02:21,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:02:21,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:02:21,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:02:21,778 INFO L87 Difference]: Start difference. First operand 8764 states and 11716 transitions. Second operand 3 states. [2020-12-23 15:02:23,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:02:23,495 INFO L93 Difference]: Finished difference Result 16382 states and 21911 transitions. [2020-12-23 15:02:23,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:02:23,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-12-23 15:02:23,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:02:23,508 INFO L225 Difference]: With dead ends: 16382 [2020-12-23 15:02:23,508 INFO L226 Difference]: Without dead ends: 8769 [2020-12-23 15:02:23,515 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 15:02:23,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8769 states. [2020-12-23 15:02:25,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8769 to 8652. [2020-12-23 15:02:25,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8652 states. [2020-12-23 15:02:25,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 11540 transitions. [2020-12-23 15:02:25,028 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 11540 transitions. Word has length 149 [2020-12-23 15:02:25,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:02:25,029 INFO L481 AbstractCegarLoop]: Abstraction has 8652 states and 11540 transitions. [2020-12-23 15:02:25,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:02:25,029 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 11540 transitions. [2020-12-23 15:02:25,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-12-23 15:02:25,033 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:02:25,034 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 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] [2020-12-23 15:02:25,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-23 15:02:25,034 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:02:25,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:02:25,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1155490122, now seen corresponding path program 1 times [2020-12-23 15:02:25,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:02:25,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231060137] [2020-12-23 15:02:25,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:02:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 15:02:25,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231060137] [2020-12-23 15:02:25,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908734162] [2020-12-23 15:02:25,295 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:02:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:26,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 1962 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 15:02:26,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:02:26,373 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 15:02:26,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 15:02:26,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-12-23 15:02:26,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537118438] [2020-12-23 15:02:26,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 15:02:26,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:02:26,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 15:02:26,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-12-23 15:02:26,376 INFO L87 Difference]: Start difference. First operand 8652 states and 11540 transitions. Second operand 8 states. [2020-12-23 15:02:27,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:02:27,879 INFO L93 Difference]: Finished difference Result 15310 states and 20407 transitions. [2020-12-23 15:02:27,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:02:27,879 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 149 [2020-12-23 15:02:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:02:27,889 INFO L225 Difference]: With dead ends: 15310 [2020-12-23 15:02:27,889 INFO L226 Difference]: Without dead ends: 7809 [2020-12-23 15:02:27,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-23 15:02:27,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7809 states. [2020-12-23 15:02:29,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7809 to 7692. [2020-12-23 15:02:29,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7692 states. [2020-12-23 15:02:29,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7692 states to 7692 states and 10196 transitions. [2020-12-23 15:02:29,133 INFO L78 Accepts]: Start accepts. Automaton has 7692 states and 10196 transitions. Word has length 149 [2020-12-23 15:02:29,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:02:29,133 INFO L481 AbstractCegarLoop]: Abstraction has 7692 states and 10196 transitions. [2020-12-23 15:02:29,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 15:02:29,134 INFO L276 IsEmpty]: Start isEmpty. Operand 7692 states and 10196 transitions. [2020-12-23 15:02:29,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-12-23 15:02:29,137 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:02:29,138 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:02:29,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:02:29,339 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:02:29,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:02:29,340 INFO L82 PathProgramCache]: Analyzing trace with hash 443823566, now seen corresponding path program 2 times [2020-12-23 15:02:29,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:02:29,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942518755] [2020-12-23 15:02:29,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:02:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:29,670 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 15:02:29,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942518755] [2020-12-23 15:02:29,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926694692] [2020-12-23 15:02:29,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:02:30,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 15:02:30,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:02:30,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1994 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 15:02:30,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:02:30,916 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 15:02:30,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 15:02:30,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-12-23 15:02:30,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611804738] [2020-12-23 15:02:30,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 15:02:30,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:02:30,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 15:02:30,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-12-23 15:02:30,919 INFO L87 Difference]: Start difference. First operand 7692 states and 10196 transitions. Second operand 10 states. [2020-12-23 15:02:32,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:02:32,378 INFO L93 Difference]: Finished difference Result 14366 states and 19063 transitions. [2020-12-23 15:02:32,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 15:02:32,379 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-12-23 15:02:32,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:02:32,387 INFO L225 Difference]: With dead ends: 14366 [2020-12-23 15:02:32,387 INFO L226 Difference]: Without dead ends: 7825 [2020-12-23 15:02:32,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-12-23 15:02:32,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7825 states. [2020-12-23 15:02:33,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7825 to 7708. [2020-12-23 15:02:33,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7708 states. [2020-12-23 15:02:33,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7708 states to 7708 states and 10212 transitions. [2020-12-23 15:02:33,614 INFO L78 Accepts]: Start accepts. Automaton has 7708 states and 10212 transitions. Word has length 150 [2020-12-23 15:02:33,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:02:33,614 INFO L481 AbstractCegarLoop]: Abstraction has 7708 states and 10212 transitions. [2020-12-23 15:02:33,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 15:02:33,614 INFO L276 IsEmpty]: Start isEmpty. Operand 7708 states and 10212 transitions. [2020-12-23 15:02:33,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-12-23 15:02:33,617 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:02:33,617 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:02:33,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:02:33,818 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:02:33,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:02:33,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1517059658, now seen corresponding path program 3 times [2020-12-23 15:02:33,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:02:33,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881527530] [2020-12-23 15:02:33,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:02:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:34,216 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 15:02:34,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881527530] [2020-12-23 15:02:34,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862489456] [2020-12-23 15:02:34,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:02:35,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-12-23 15:02:35,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:02:35,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 1687 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 15:02:35,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:02:36,006 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-23 15:02:36,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 15:02:36,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2020-12-23 15:02:36,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200728879] [2020-12-23 15:02:36,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 15:02:36,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:02:36,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 15:02:36,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-12-23 15:02:36,008 INFO L87 Difference]: Start difference. First operand 7708 states and 10212 transitions. Second operand 11 states. [2020-12-23 15:02:37,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:02:37,613 INFO L93 Difference]: Finished difference Result 14418 states and 19131 transitions. [2020-12-23 15:02:37,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 15:02:37,614 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-12-23 15:02:37,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:02:37,622 INFO L225 Difference]: With dead ends: 14418 [2020-12-23 15:02:37,622 INFO L226 Difference]: Without dead ends: 7861 [2020-12-23 15:02:37,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2020-12-23 15:02:37,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7861 states. [2020-12-23 15:02:38,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7861 to 7740. [2020-12-23 15:02:38,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7740 states. [2020-12-23 15:02:38,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7740 states to 7740 states and 10244 transitions. [2020-12-23 15:02:38,916 INFO L78 Accepts]: Start accepts. Automaton has 7740 states and 10244 transitions. Word has length 151 [2020-12-23 15:02:38,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:02:38,916 INFO L481 AbstractCegarLoop]: Abstraction has 7740 states and 10244 transitions. [2020-12-23 15:02:38,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 15:02:38,916 INFO L276 IsEmpty]: Start isEmpty. Operand 7740 states and 10244 transitions. [2020-12-23 15:02:38,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-12-23 15:02:38,919 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:02:38,919 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:02:39,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-12-23 15:02:39,121 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:02:39,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:02:39,122 INFO L82 PathProgramCache]: Analyzing trace with hash 683102328, now seen corresponding path program 4 times [2020-12-23 15:02:39,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:02:39,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981775084] [2020-12-23 15:02:39,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:02:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:39,367 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:02:39,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981775084] [2020-12-23 15:02:39,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107596734] [2020-12-23 15:02:39,369 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:02:43,258 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 15:02:43,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:02:43,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 2068 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 15:02:43,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:02:43,470 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:02:43,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 15:02:43,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-12-23 15:02:43,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278275992] [2020-12-23 15:02:43,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 15:02:43,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:02:43,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 15:02:43,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-12-23 15:02:43,472 INFO L87 Difference]: Start difference. First operand 7740 states and 10244 transitions. Second operand 12 states. [2020-12-23 15:02:45,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:02:45,007 INFO L93 Difference]: Finished difference Result 14377 states and 19048 transitions. [2020-12-23 15:02:45,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 15:02:45,007 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 153 [2020-12-23 15:02:45,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:02:45,014 INFO L225 Difference]: With dead ends: 14377 [2020-12-23 15:02:45,015 INFO L226 Difference]: Without dead ends: 7756 [2020-12-23 15:02:45,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-12-23 15:02:45,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7756 states. [2020-12-23 15:02:46,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7756 to 7756. [2020-12-23 15:02:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7756 states. [2020-12-23 15:02:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 10260 transitions. [2020-12-23 15:02:46,187 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 10260 transitions. Word has length 153 [2020-12-23 15:02:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:02:46,187 INFO L481 AbstractCegarLoop]: Abstraction has 7756 states and 10260 transitions. [2020-12-23 15:02:46,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 15:02:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 10260 transitions. [2020-12-23 15:02:46,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-12-23 15:02:46,190 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:02:46,190 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:02:46,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-12-23 15:02:46,397 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:02:46,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:02:46,398 INFO L82 PathProgramCache]: Analyzing trace with hash -138830960, now seen corresponding path program 5 times [2020-12-23 15:02:46,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:02:46,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086523871] [2020-12-23 15:02:46,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:02:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:02:46,631 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 20 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:02:46,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086523871] [2020-12-23 15:02:46,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001200897] [2020-12-23 15:02:46,632 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:02:58,531 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-23 15:02:58,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:02:58,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 15:02:58,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:02:58,883 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:02:58,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 15:02:58,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 13 [2020-12-23 15:02:58,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741253334] [2020-12-23 15:02:58,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-23 15:02:58,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:02:58,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-23 15:02:58,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-12-23 15:02:58,887 INFO L87 Difference]: Start difference. First operand 7756 states and 10260 transitions. Second operand 13 states. [2020-12-23 15:03:00,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:03:00,531 INFO L93 Difference]: Finished difference Result 14409 states and 19080 transitions. [2020-12-23 15:03:00,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 15:03:00,532 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 154 [2020-12-23 15:03:00,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:03:00,542 INFO L225 Difference]: With dead ends: 14409 [2020-12-23 15:03:00,543 INFO L226 Difference]: Without dead ends: 7772 [2020-12-23 15:03:00,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-12-23 15:03:00,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7772 states. [2020-12-23 15:03:01,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7772 to 7772. [2020-12-23 15:03:01,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7772 states. [2020-12-23 15:03:01,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7772 states to 7772 states and 10276 transitions. [2020-12-23 15:03:01,837 INFO L78 Accepts]: Start accepts. Automaton has 7772 states and 10276 transitions. Word has length 154 [2020-12-23 15:03:01,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:03:01,837 INFO L481 AbstractCegarLoop]: Abstraction has 7772 states and 10276 transitions. [2020-12-23 15:03:01,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-23 15:03:01,837 INFO L276 IsEmpty]: Start isEmpty. Operand 7772 states and 10276 transitions. [2020-12-23 15:03:01,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-12-23 15:03:01,840 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:03:01,840 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:03:02,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-12-23 15:03:02,041 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:03:02,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:03:02,042 INFO L82 PathProgramCache]: Analyzing trace with hash 151040888, now seen corresponding path program 6 times [2020-12-23 15:03:02,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:03:02,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966768758] [2020-12-23 15:03:02,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:03:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:03:02,306 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 22 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:03:02,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966768758] [2020-12-23 15:03:02,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786519805] [2020-12-23 15:03:02,307 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:03:28,271 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2020-12-23 15:03:28,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:03:28,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 2132 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 15:03:28,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:03:28,479 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:03:28,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 15:03:28,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 14 [2020-12-23 15:03:28,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624078769] [2020-12-23 15:03:28,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-23 15:03:28,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:03:28,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-23 15:03:28,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-12-23 15:03:28,481 INFO L87 Difference]: Start difference. First operand 7772 states and 10276 transitions. Second operand 14 states. [2020-12-23 15:03:29,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:03:30,000 INFO L93 Difference]: Finished difference Result 14441 states and 19112 transitions. [2020-12-23 15:03:30,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 15:03:30,001 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 155 [2020-12-23 15:03:30,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:03:30,009 INFO L225 Difference]: With dead ends: 14441 [2020-12-23 15:03:30,009 INFO L226 Difference]: Without dead ends: 7788 [2020-12-23 15:03:30,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-12-23 15:03:30,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7788 states. [2020-12-23 15:03:31,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7788 to 7788. [2020-12-23 15:03:31,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7788 states. [2020-12-23 15:03:31,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7788 states to 7788 states and 10292 transitions. [2020-12-23 15:03:31,172 INFO L78 Accepts]: Start accepts. Automaton has 7788 states and 10292 transitions. Word has length 155 [2020-12-23 15:03:31,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:03:31,172 INFO L481 AbstractCegarLoop]: Abstraction has 7788 states and 10292 transitions. [2020-12-23 15:03:31,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-23 15:03:31,172 INFO L276 IsEmpty]: Start isEmpty. Operand 7788 states and 10292 transitions. [2020-12-23 15:03:31,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-12-23 15:03:31,175 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:03:31,175 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:03:31,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:03:31,376 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:03:31,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:03:31,377 INFO L82 PathProgramCache]: Analyzing trace with hash 547133584, now seen corresponding path program 7 times [2020-12-23 15:03:31,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:03:31,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362211257] [2020-12-23 15:03:31,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:03:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:03:31,626 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 20 proven. 29 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:03:31,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362211257] [2020-12-23 15:03:31,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037301670] [2020-12-23 15:03:31,627 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:03:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:03:32,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 2164 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 15:03:32,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:03:32,573 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 21 proven. 28 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:03:32,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 15:03:32,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 15 [2020-12-23 15:03:32,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762765928] [2020-12-23 15:03:32,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-23 15:03:32,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:03:32,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-23 15:03:32,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2020-12-23 15:03:32,575 INFO L87 Difference]: Start difference. First operand 7788 states and 10292 transitions. Second operand 15 states. [2020-12-23 15:03:34,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:03:34,013 INFO L93 Difference]: Finished difference Result 14473 states and 19144 transitions. [2020-12-23 15:03:34,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 15:03:34,013 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 156 [2020-12-23 15:03:34,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:03:34,023 INFO L225 Difference]: With dead ends: 14473 [2020-12-23 15:03:34,024 INFO L226 Difference]: Without dead ends: 7804 [2020-12-23 15:03:34,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-12-23 15:03:34,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7804 states. [2020-12-23 15:03:35,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7804 to 7804. [2020-12-23 15:03:35,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7804 states. [2020-12-23 15:03:35,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7804 states to 7804 states and 10308 transitions. [2020-12-23 15:03:35,289 INFO L78 Accepts]: Start accepts. Automaton has 7804 states and 10308 transitions. Word has length 156 [2020-12-23 15:03:35,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:03:35,289 INFO L481 AbstractCegarLoop]: Abstraction has 7804 states and 10308 transitions. [2020-12-23 15:03:35,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-23 15:03:35,289 INFO L276 IsEmpty]: Start isEmpty. Operand 7804 states and 10308 transitions. [2020-12-23 15:03:35,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 15:03:35,291 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:03:35,292 INFO L422 BasicCegarLoop]: trace histogram [8, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:03:35,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-12-23 15:03:35,493 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:03:35,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:03:35,494 INFO L82 PathProgramCache]: Analyzing trace with hash -58894728, now seen corresponding path program 8 times [2020-12-23 15:03:35,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:03:35,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335310971] [2020-12-23 15:03:35,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:03:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:03:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 20 proven. 37 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:03:35,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335310971] [2020-12-23 15:03:35,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844990373] [2020-12-23 15:03:35,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:03:36,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 15:03:36,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:03:36,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 2196 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 15:03:36,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:03:36,884 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 21 proven. 36 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 15:03:36,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 15:03:36,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 16 [2020-12-23 15:03:36,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169806300] [2020-12-23 15:03:36,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-23 15:03:36,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:03:36,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-23 15:03:36,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-12-23 15:03:36,887 INFO L87 Difference]: Start difference. First operand 7804 states and 10308 transitions. Second operand 16 states. [2020-12-23 15:03:38,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:03:38,494 INFO L93 Difference]: Finished difference Result 14626 states and 19323 transitions. [2020-12-23 15:03:38,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 15:03:38,495 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 157 [2020-12-23 15:03:38,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:03:38,504 INFO L225 Difference]: With dead ends: 14626 [2020-12-23 15:03:38,504 INFO L226 Difference]: Without dead ends: 7941 [2020-12-23 15:03:38,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-12-23 15:03:38,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7941 states. [2020-12-23 15:03:39,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7941 to 7820. [2020-12-23 15:03:39,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7820 states. [2020-12-23 15:03:39,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7820 states to 7820 states and 10324 transitions. [2020-12-23 15:03:39,739 INFO L78 Accepts]: Start accepts. Automaton has 7820 states and 10324 transitions. Word has length 157 [2020-12-23 15:03:39,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:03:39,740 INFO L481 AbstractCegarLoop]: Abstraction has 7820 states and 10324 transitions. [2020-12-23 15:03:39,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-23 15:03:39,740 INFO L276 IsEmpty]: Start isEmpty. Operand 7820 states and 10324 transitions. [2020-12-23 15:03:39,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-12-23 15:03:39,742 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:03:39,742 INFO L422 BasicCegarLoop]: trace histogram [9, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:03:39,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-12-23 15:03:39,950 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:03:39,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:03:39,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1665903216, now seen corresponding path program 9 times [2020-12-23 15:03:39,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:03:39,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592070045] [2020-12-23 15:03:39,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:03:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:03:40,670 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 18 proven. 45 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-23 15:03:40,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592070045] [2020-12-23 15:03:40,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496389454] [2020-12-23 15:03:40,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true