/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/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 19:33:51,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 19:33:51,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 19:33:51,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 19:33:51,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 19:33:51,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 19:33:51,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 19:33:51,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 19:33:51,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 19:33:51,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 19:33:51,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 19:33:51,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 19:33:51,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 19:33:51,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 19:33:51,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 19:33:51,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 19:33:51,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 19:33:51,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 19:33:51,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 19:33:51,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 19:33:51,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 19:33:51,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 19:33:51,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 19:33:51,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 19:33:51,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 19:33:51,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 19:33:51,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 19:33:51,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 19:33:51,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 19:33:51,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 19:33:51,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 19:33:51,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 19:33:51,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 19:33:51,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 19:33:51,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 19:33:51,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 19:33:51,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 19:33:51,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 19:33:51,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 19:33:51,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 19:33:51,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 19:33:51,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 19:33:51,501 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 19:33:51,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 19:33:51,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 19:33:51,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 19:33:51,506 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 19:33:51,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 19:33:51,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 19:33:51,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 19:33:51,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 19:33:51,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 19:33:51,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 19:33:51,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 19:33:51,509 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 19:33:51,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 19:33:51,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 19:33:51,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 19:33:51,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 19:33:51,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 19:33:51,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 19:33:51,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 19:33:51,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 19:33:51,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 19:33:51,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 19:33:51,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 19:33:51,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 19:33:51,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 19:33:51,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 19:33:51,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 19:33:51,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 19:33:51,980 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 19:33:51,981 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 19:33:51,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2021-01-06 19:33:52,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a68b1e4c7/207543f57d8c4527bcab0c87b9500f7a/FLAG176060e2f [2021-01-06 19:33:52,695 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 19:33:52,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2021-01-06 19:33:52,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a68b1e4c7/207543f57d8c4527bcab0c87b9500f7a/FLAG176060e2f [2021-01-06 19:33:52,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a68b1e4c7/207543f57d8c4527bcab0c87b9500f7a [2021-01-06 19:33:52,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 19:33:52,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 19:33:52,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 19:33:52,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 19:33:52,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 19:33:52,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:33:52" (1/1) ... [2021-01-06 19:33:52,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df6bf9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:52, skipping insertion in model container [2021-01-06 19:33:52,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:33:52" (1/1) ... [2021-01-06 19:33:52,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 19:33:53,012 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~ini_bool~0,] left hand side expression in assignment: lhs: VariableLHS[~ini_int~0,] left hand side expression in assignment: lhs: VariableLHS[~var~0,] 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___2~0,] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~temp_count~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___10~0,] 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[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___11~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___12~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___13~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___14~0,] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~next_state~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~next_state~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~next_state~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~VALUE1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~c1~0,] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i2~0,] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i2~0,] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~c1~0,] [2021-01-06 19:33:53,278 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/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c[12106,12119] [2021-01-06 19:33:53,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:33:53,295 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~ini_bool~0,] left hand side expression in assignment: lhs: VariableLHS[~ini_int~0,] left hand side expression in assignment: lhs: VariableLHS[~var~0,] 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___2~0,] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~temp_count~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___10~0,] 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[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___11~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___12~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___13~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___14~0,] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~next_state~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~next_state~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~next_state~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~VALUE1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~c1~0,] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i2~0,] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i2~0,] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~c1~0,] [2021-01-06 19:33:53,429 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/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c[12106,12119] [2021-01-06 19:33:53,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:33:53,470 INFO L208 MainTranslator]: Completed translation [2021-01-06 19:33:53,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:53 WrapperNode [2021-01-06 19:33:53,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 19:33:53,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 19:33:53,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 19:33:53,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 19:33:53,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:53" (1/1) ... [2021-01-06 19:33:53,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:53" (1/1) ... [2021-01-06 19:33:53,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 19:33:53,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 19:33:53,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 19:33:53,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 19:33:53,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:53" (1/1) ... [2021-01-06 19:33:53,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:53" (1/1) ... [2021-01-06 19:33:53,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:53" (1/1) ... [2021-01-06 19:33:53,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:53" (1/1) ... [2021-01-06 19:33:53,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:53" (1/1) ... [2021-01-06 19:33:53,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:53" (1/1) ... [2021-01-06 19:33:53,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:53" (1/1) ... [2021-01-06 19:33:53,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 19:33:53,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 19:33:53,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 19:33:53,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 19:33:53,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:53" (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 [2021-01-06 19:33:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 19:33:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 19:33:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 19:33:53,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 19:33:55,701 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 19:33:55,701 INFO L299 CfgBuilder]: Removed 183 assume(true) statements. [2021-01-06 19:33:55,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:33:55 BoogieIcfgContainer [2021-01-06 19:33:55,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 19:33:55,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 19:33:55,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 19:33:55,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 19:33:55,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 07:33:52" (1/3) ... [2021-01-06 19:33:55,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efe881e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:33:55, skipping insertion in model container [2021-01-06 19:33:55,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:53" (2/3) ... [2021-01-06 19:33:55,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efe881e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:33:55, skipping insertion in model container [2021-01-06 19:33:55,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:33:55" (3/3) ... [2021-01-06 19:33:55,716 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2021-01-06 19:33:55,723 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 19:33:55,729 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 37 error locations. [2021-01-06 19:33:55,748 INFO L253 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2021-01-06 19:33:55,782 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 19:33:55,782 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 19:33:55,783 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 19:33:55,783 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 19:33:55,783 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 19:33:55,783 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 19:33:55,783 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 19:33:55,784 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 19:33:55,819 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states. [2021-01-06 19:33:55,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 19:33:55,829 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:55,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:55,831 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:55,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:55,839 INFO L82 PathProgramCache]: Analyzing trace with hash 595705480, now seen corresponding path program 1 times [2021-01-06 19:33:55,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:55,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129374908] [2021-01-06 19:33:55,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:56,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:56,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129374908] [2021-01-06 19:33:56,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:56,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:56,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994912968] [2021-01-06 19:33:56,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:56,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:56,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:56,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:56,107 INFO L87 Difference]: Start difference. First operand 522 states. Second operand 3 states. [2021-01-06 19:33:56,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:56,421 INFO L93 Difference]: Finished difference Result 1248 states and 2066 transitions. [2021-01-06 19:33:56,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:56,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-01-06 19:33:56,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:56,446 INFO L225 Difference]: With dead ends: 1248 [2021-01-06 19:33:56,446 INFO L226 Difference]: Without dead ends: 728 [2021-01-06 19:33:56,453 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 [2021-01-06 19:33:56,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2021-01-06 19:33:56,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 458. [2021-01-06 19:33:56,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2021-01-06 19:33:56,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 714 transitions. [2021-01-06 19:33:56,550 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 714 transitions. Word has length 9 [2021-01-06 19:33:56,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:56,551 INFO L481 AbstractCegarLoop]: Abstraction has 458 states and 714 transitions. [2021-01-06 19:33:56,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:56,551 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 714 transitions. [2021-01-06 19:33:56,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 19:33:56,554 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:56,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:56,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 19:33:56,555 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:56,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:56,557 INFO L82 PathProgramCache]: Analyzing trace with hash -503954138, now seen corresponding path program 1 times [2021-01-06 19:33:56,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:56,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119161285] [2021-01-06 19:33:56,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:56,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:56,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119161285] [2021-01-06 19:33:56,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:56,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:56,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348373432] [2021-01-06 19:33:56,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:56,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:56,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:56,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:56,673 INFO L87 Difference]: Start difference. First operand 458 states and 714 transitions. Second operand 3 states. [2021-01-06 19:33:56,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:56,764 INFO L93 Difference]: Finished difference Result 1134 states and 1752 transitions. [2021-01-06 19:33:56,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:56,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-01-06 19:33:56,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:56,773 INFO L225 Difference]: With dead ends: 1134 [2021-01-06 19:33:56,773 INFO L226 Difference]: Without dead ends: 678 [2021-01-06 19:33:56,780 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 [2021-01-06 19:33:56,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2021-01-06 19:33:56,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 425. [2021-01-06 19:33:56,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2021-01-06 19:33:56,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 656 transitions. [2021-01-06 19:33:56,821 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 656 transitions. Word has length 10 [2021-01-06 19:33:56,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:56,821 INFO L481 AbstractCegarLoop]: Abstraction has 425 states and 656 transitions. [2021-01-06 19:33:56,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:56,822 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 656 transitions. [2021-01-06 19:33:56,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 19:33:56,825 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:56,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:56,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 19:33:56,826 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:56,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:56,830 INFO L82 PathProgramCache]: Analyzing trace with hash -248055967, now seen corresponding path program 1 times [2021-01-06 19:33:56,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:56,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576595089] [2021-01-06 19:33:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:56,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:56,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576595089] [2021-01-06 19:33:56,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:56,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:56,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608588778] [2021-01-06 19:33:56,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:56,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:56,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:56,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:56,911 INFO L87 Difference]: Start difference. First operand 425 states and 656 transitions. Second operand 3 states. [2021-01-06 19:33:56,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:56,992 INFO L93 Difference]: Finished difference Result 1253 states and 1939 transitions. [2021-01-06 19:33:56,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:56,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2021-01-06 19:33:56,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:57,000 INFO L225 Difference]: With dead ends: 1253 [2021-01-06 19:33:57,000 INFO L226 Difference]: Without dead ends: 838 [2021-01-06 19:33:57,001 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 [2021-01-06 19:33:57,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2021-01-06 19:33:57,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 429. [2021-01-06 19:33:57,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2021-01-06 19:33:57,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 660 transitions. [2021-01-06 19:33:57,025 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 660 transitions. Word has length 14 [2021-01-06 19:33:57,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:57,031 INFO L481 AbstractCegarLoop]: Abstraction has 429 states and 660 transitions. [2021-01-06 19:33:57,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:57,032 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 660 transitions. [2021-01-06 19:33:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 19:33:57,037 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:57,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:57,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 19:33:57,038 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:57,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:57,038 INFO L82 PathProgramCache]: Analyzing trace with hash -35486156, now seen corresponding path program 1 times [2021-01-06 19:33:57,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:57,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912586319] [2021-01-06 19:33:57,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:57,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:57,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912586319] [2021-01-06 19:33:57,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:57,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:57,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499233453] [2021-01-06 19:33:57,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:57,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:57,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:57,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:57,147 INFO L87 Difference]: Start difference. First operand 429 states and 660 transitions. Second operand 4 states. [2021-01-06 19:33:57,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:57,244 INFO L93 Difference]: Finished difference Result 1584 states and 2417 transitions. [2021-01-06 19:33:57,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:57,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2021-01-06 19:33:57,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:57,251 INFO L225 Difference]: With dead ends: 1584 [2021-01-06 19:33:57,251 INFO L226 Difference]: Without dead ends: 1169 [2021-01-06 19:33:57,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:57,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2021-01-06 19:33:57,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 431. [2021-01-06 19:33:57,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2021-01-06 19:33:57,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 662 transitions. [2021-01-06 19:33:57,271 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 662 transitions. Word has length 18 [2021-01-06 19:33:57,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:57,271 INFO L481 AbstractCegarLoop]: Abstraction has 431 states and 662 transitions. [2021-01-06 19:33:57,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:57,271 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 662 transitions. [2021-01-06 19:33:57,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 19:33:57,272 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:57,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:57,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 19:33:57,273 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:57,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:57,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1707916525, now seen corresponding path program 1 times [2021-01-06 19:33:57,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:57,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59040262] [2021-01-06 19:33:57,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:57,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:57,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59040262] [2021-01-06 19:33:57,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:57,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:57,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155674719] [2021-01-06 19:33:57,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:57,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:57,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:57,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:57,318 INFO L87 Difference]: Start difference. First operand 431 states and 662 transitions. Second operand 4 states. [2021-01-06 19:33:57,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:57,379 INFO L93 Difference]: Finished difference Result 675 states and 1030 transitions. [2021-01-06 19:33:57,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:57,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2021-01-06 19:33:57,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:57,384 INFO L225 Difference]: With dead ends: 675 [2021-01-06 19:33:57,384 INFO L226 Difference]: Without dead ends: 429 [2021-01-06 19:33:57,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:57,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-01-06 19:33:57,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2021-01-06 19:33:57,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2021-01-06 19:33:57,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 655 transitions. [2021-01-06 19:33:57,397 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 655 transitions. Word has length 19 [2021-01-06 19:33:57,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:57,398 INFO L481 AbstractCegarLoop]: Abstraction has 429 states and 655 transitions. [2021-01-06 19:33:57,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:57,398 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 655 transitions. [2021-01-06 19:33:57,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 19:33:57,399 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:57,399 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] [2021-01-06 19:33:57,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 19:33:57,400 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:57,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:57,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1967275947, now seen corresponding path program 1 times [2021-01-06 19:33:57,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:57,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913329510] [2021-01-06 19:33:57,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:57,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:57,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913329510] [2021-01-06 19:33:57,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85285448] [2021-01-06 19:33:57,475 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 [2021-01-06 19:33:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:57,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:33:57,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:57,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:57,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:33:57,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-01-06 19:33:57,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903330965] [2021-01-06 19:33:57,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:33:57,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:57,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:33:57,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:57,745 INFO L87 Difference]: Start difference. First operand 429 states and 655 transitions. Second operand 5 states. [2021-01-06 19:33:57,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:57,905 INFO L93 Difference]: Finished difference Result 1671 states and 2565 transitions. [2021-01-06 19:33:57,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:57,906 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2021-01-06 19:33:57,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:57,913 INFO L225 Difference]: With dead ends: 1671 [2021-01-06 19:33:57,913 INFO L226 Difference]: Without dead ends: 1253 [2021-01-06 19:33:57,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:57,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2021-01-06 19:33:57,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 575. [2021-01-06 19:33:57,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2021-01-06 19:33:57,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 905 transitions. [2021-01-06 19:33:57,937 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 905 transitions. Word has length 21 [2021-01-06 19:33:57,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:57,938 INFO L481 AbstractCegarLoop]: Abstraction has 575 states and 905 transitions. [2021-01-06 19:33:57,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:33:57,938 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 905 transitions. [2021-01-06 19:33:57,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-06 19:33:57,939 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:57,939 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:58,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-01-06 19:33:58,156 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:58,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:58,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1165168607, now seen corresponding path program 2 times [2021-01-06 19:33:58,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:58,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596751611] [2021-01-06 19:33:58,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:58,192 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-01-06 19:33:58,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596751611] [2021-01-06 19:33:58,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:58,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:58,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542063509] [2021-01-06 19:33:58,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:58,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:58,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:58,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:58,197 INFO L87 Difference]: Start difference. First operand 575 states and 905 transitions. Second operand 3 states. [2021-01-06 19:33:58,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:58,340 INFO L93 Difference]: Finished difference Result 1300 states and 2016 transitions. [2021-01-06 19:33:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:58,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-01-06 19:33:58,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:58,344 INFO L225 Difference]: With dead ends: 1300 [2021-01-06 19:33:58,345 INFO L226 Difference]: Without dead ends: 783 [2021-01-06 19:33:58,346 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 [2021-01-06 19:33:58,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2021-01-06 19:33:58,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 509. [2021-01-06 19:33:58,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 509 states. [2021-01-06 19:33:58,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 780 transitions. [2021-01-06 19:33:58,363 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 780 transitions. Word has length 28 [2021-01-06 19:33:58,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:58,364 INFO L481 AbstractCegarLoop]: Abstraction has 509 states and 780 transitions. [2021-01-06 19:33:58,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:58,364 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 780 transitions. [2021-01-06 19:33:58,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-06 19:33:58,365 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:58,365 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:58,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 19:33:58,366 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:58,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:58,366 INFO L82 PathProgramCache]: Analyzing trace with hash 777427029, now seen corresponding path program 1 times [2021-01-06 19:33:58,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:58,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992338386] [2021-01-06 19:33:58,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-01-06 19:33:58,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992338386] [2021-01-06 19:33:58,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:58,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:58,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510117334] [2021-01-06 19:33:58,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:58,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:58,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:58,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:58,402 INFO L87 Difference]: Start difference. First operand 509 states and 780 transitions. Second operand 3 states. [2021-01-06 19:33:58,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:58,480 INFO L93 Difference]: Finished difference Result 1168 states and 1775 transitions. [2021-01-06 19:33:58,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:58,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-01-06 19:33:58,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:58,484 INFO L225 Difference]: With dead ends: 1168 [2021-01-06 19:33:58,484 INFO L226 Difference]: Without dead ends: 690 [2021-01-06 19:33:58,487 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 [2021-01-06 19:33:58,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2021-01-06 19:33:58,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 458. [2021-01-06 19:33:58,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2021-01-06 19:33:58,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 686 transitions. [2021-01-06 19:33:58,503 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 686 transitions. Word has length 28 [2021-01-06 19:33:58,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:58,503 INFO L481 AbstractCegarLoop]: Abstraction has 458 states and 686 transitions. [2021-01-06 19:33:58,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:58,503 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 686 transitions. [2021-01-06 19:33:58,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-06 19:33:58,504 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:58,505 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-01-06 19:33:58,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 19:33:58,505 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:58,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:58,506 INFO L82 PathProgramCache]: Analyzing trace with hash 104948594, now seen corresponding path program 1 times [2021-01-06 19:33:58,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:58,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967973073] [2021-01-06 19:33:58,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:58,547 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-01-06 19:33:58,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967973073] [2021-01-06 19:33:58,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:58,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:58,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256990105] [2021-01-06 19:33:58,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:58,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:58,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:58,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:58,550 INFO L87 Difference]: Start difference. First operand 458 states and 686 transitions. Second operand 4 states. [2021-01-06 19:33:58,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:58,623 INFO L93 Difference]: Finished difference Result 1102 states and 1656 transitions. [2021-01-06 19:33:58,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:58,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2021-01-06 19:33:58,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:58,627 INFO L225 Difference]: With dead ends: 1102 [2021-01-06 19:33:58,628 INFO L226 Difference]: Without dead ends: 688 [2021-01-06 19:33:58,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:58,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2021-01-06 19:33:58,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 458. [2021-01-06 19:33:58,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2021-01-06 19:33:58,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 684 transitions. [2021-01-06 19:33:58,644 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 684 transitions. Word has length 38 [2021-01-06 19:33:58,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:58,644 INFO L481 AbstractCegarLoop]: Abstraction has 458 states and 684 transitions. [2021-01-06 19:33:58,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:58,644 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 684 transitions. [2021-01-06 19:33:58,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-06 19:33:58,645 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:58,645 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2021-01-06 19:33:58,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 19:33:58,646 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:58,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:58,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1338937392, now seen corresponding path program 1 times [2021-01-06 19:33:58,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:58,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473369883] [2021-01-06 19:33:58,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-01-06 19:33:58,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473369883] [2021-01-06 19:33:58,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:58,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:58,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814651956] [2021-01-06 19:33:58,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:58,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:58,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:58,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:58,695 INFO L87 Difference]: Start difference. First operand 458 states and 684 transitions. Second operand 3 states. [2021-01-06 19:33:58,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:58,750 INFO L93 Difference]: Finished difference Result 1038 states and 1555 transitions. [2021-01-06 19:33:58,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:58,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2021-01-06 19:33:58,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:58,754 INFO L225 Difference]: With dead ends: 1038 [2021-01-06 19:33:58,754 INFO L226 Difference]: Without dead ends: 643 [2021-01-06 19:33:58,755 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 [2021-01-06 19:33:58,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2021-01-06 19:33:58,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 414. [2021-01-06 19:33:58,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2021-01-06 19:33:58,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 610 transitions. [2021-01-06 19:33:58,769 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 610 transitions. Word has length 50 [2021-01-06 19:33:58,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:58,769 INFO L481 AbstractCegarLoop]: Abstraction has 414 states and 610 transitions. [2021-01-06 19:33:58,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:58,770 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 610 transitions. [2021-01-06 19:33:58,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-06 19:33:58,770 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:58,770 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2021-01-06 19:33:58,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 19:33:58,771 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:58,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:58,772 INFO L82 PathProgramCache]: Analyzing trace with hash 970476669, now seen corresponding path program 1 times [2021-01-06 19:33:58,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:58,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936089638] [2021-01-06 19:33:58,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:58,812 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-01-06 19:33:58,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936089638] [2021-01-06 19:33:58,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:58,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:58,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587747910] [2021-01-06 19:33:58,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:58,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:58,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:58,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:58,815 INFO L87 Difference]: Start difference. First operand 414 states and 610 transitions. Second operand 3 states. [2021-01-06 19:33:58,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:58,888 INFO L93 Difference]: Finished difference Result 872 states and 1284 transitions. [2021-01-06 19:33:58,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:58,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2021-01-06 19:33:58,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:58,891 INFO L225 Difference]: With dead ends: 872 [2021-01-06 19:33:58,892 INFO L226 Difference]: Without dead ends: 513 [2021-01-06 19:33:58,893 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 [2021-01-06 19:33:58,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2021-01-06 19:33:58,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 370. [2021-01-06 19:33:58,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2021-01-06 19:33:58,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 522 transitions. [2021-01-06 19:33:58,905 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 522 transitions. Word has length 51 [2021-01-06 19:33:58,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:58,906 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 522 transitions. [2021-01-06 19:33:58,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:58,906 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 522 transitions. [2021-01-06 19:33:58,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-06 19:33:58,907 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:58,907 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2021-01-06 19:33:58,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 19:33:58,908 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:58,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:58,908 INFO L82 PathProgramCache]: Analyzing trace with hash 216341264, now seen corresponding path program 1 times [2021-01-06 19:33:58,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:58,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142937134] [2021-01-06 19:33:58,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-01-06 19:33:59,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142937134] [2021-01-06 19:33:59,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:59,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:59,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150377126] [2021-01-06 19:33:59,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:59,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:59,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:59,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:59,003 INFO L87 Difference]: Start difference. First operand 370 states and 522 transitions. Second operand 4 states. [2021-01-06 19:33:59,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:59,063 INFO L93 Difference]: Finished difference Result 880 states and 1263 transitions. [2021-01-06 19:33:59,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:59,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2021-01-06 19:33:59,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:59,067 INFO L225 Difference]: With dead ends: 880 [2021-01-06 19:33:59,068 INFO L226 Difference]: Without dead ends: 582 [2021-01-06 19:33:59,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:59,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2021-01-06 19:33:59,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 370. [2021-01-06 19:33:59,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2021-01-06 19:33:59,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 520 transitions. [2021-01-06 19:33:59,081 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 520 transitions. Word has length 62 [2021-01-06 19:33:59,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:59,082 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 520 transitions. [2021-01-06 19:33:59,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:59,083 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 520 transitions. [2021-01-06 19:33:59,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-01-06 19:33:59,084 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:59,084 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:59,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 19:33:59,084 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:59,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:59,085 INFO L82 PathProgramCache]: Analyzing trace with hash 542276843, now seen corresponding path program 1 times [2021-01-06 19:33:59,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:59,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111964770] [2021-01-06 19:33:59,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-01-06 19:33:59,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111964770] [2021-01-06 19:33:59,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:59,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:59,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363109397] [2021-01-06 19:33:59,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:59,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:59,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:59,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:59,181 INFO L87 Difference]: Start difference. First operand 370 states and 520 transitions. Second operand 3 states. [2021-01-06 19:33:59,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:59,231 INFO L93 Difference]: Finished difference Result 731 states and 1062 transitions. [2021-01-06 19:33:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:59,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2021-01-06 19:33:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:59,235 INFO L225 Difference]: With dead ends: 731 [2021-01-06 19:33:59,235 INFO L226 Difference]: Without dead ends: 467 [2021-01-06 19:33:59,236 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 [2021-01-06 19:33:59,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-01-06 19:33:59,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 328. [2021-01-06 19:33:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2021-01-06 19:33:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 466 transitions. [2021-01-06 19:33:59,254 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 466 transitions. Word has length 76 [2021-01-06 19:33:59,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:59,254 INFO L481 AbstractCegarLoop]: Abstraction has 328 states and 466 transitions. [2021-01-06 19:33:59,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:59,254 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 466 transitions. [2021-01-06 19:33:59,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-01-06 19:33:59,255 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:59,256 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:59,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 19:33:59,256 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:59,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:59,257 INFO L82 PathProgramCache]: Analyzing trace with hash -532838176, now seen corresponding path program 1 times [2021-01-06 19:33:59,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:59,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939565976] [2021-01-06 19:33:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:59,306 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-01-06 19:33:59,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939565976] [2021-01-06 19:33:59,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:59,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:59,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720480023] [2021-01-06 19:33:59,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:59,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:59,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:59,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:59,309 INFO L87 Difference]: Start difference. First operand 328 states and 466 transitions. Second operand 3 states. [2021-01-06 19:33:59,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:59,340 INFO L93 Difference]: Finished difference Result 505 states and 730 transitions. [2021-01-06 19:33:59,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:59,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2021-01-06 19:33:59,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:59,342 INFO L225 Difference]: With dead ends: 505 [2021-01-06 19:33:59,342 INFO L226 Difference]: Without dead ends: 274 [2021-01-06 19:33:59,343 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 [2021-01-06 19:33:59,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-01-06 19:33:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-01-06 19:33:59,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-01-06 19:33:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 385 transitions. [2021-01-06 19:33:59,352 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 385 transitions. Word has length 85 [2021-01-06 19:33:59,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:59,353 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 385 transitions. [2021-01-06 19:33:59,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:59,353 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 385 transitions. [2021-01-06 19:33:59,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-01-06 19:33:59,354 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:59,354 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:59,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 19:33:59,355 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:59,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:59,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1722161102, now seen corresponding path program 1 times [2021-01-06 19:33:59,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:59,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844283689] [2021-01-06 19:33:59,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:59,406 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-01-06 19:33:59,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844283689] [2021-01-06 19:33:59,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:59,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:59,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195532054] [2021-01-06 19:33:59,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:59,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:59,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:59,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:59,408 INFO L87 Difference]: Start difference. First operand 274 states and 385 transitions. Second operand 4 states. [2021-01-06 19:33:59,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:59,446 INFO L93 Difference]: Finished difference Result 450 states and 648 transitions. [2021-01-06 19:33:59,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:59,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2021-01-06 19:33:59,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:59,448 INFO L225 Difference]: With dead ends: 450 [2021-01-06 19:33:59,448 INFO L226 Difference]: Without dead ends: 274 [2021-01-06 19:33:59,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:59,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-01-06 19:33:59,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-01-06 19:33:59,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-01-06 19:33:59,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 383 transitions. [2021-01-06 19:33:59,459 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 383 transitions. Word has length 88 [2021-01-06 19:33:59,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:59,459 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 383 transitions. [2021-01-06 19:33:59,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:59,459 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 383 transitions. [2021-01-06 19:33:59,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-01-06 19:33:59,460 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:59,460 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:59,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 19:33:59,461 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:59,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:59,461 INFO L82 PathProgramCache]: Analyzing trace with hash 44940035, now seen corresponding path program 1 times [2021-01-06 19:33:59,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:59,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077534888] [2021-01-06 19:33:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:59,523 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-01-06 19:33:59,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077534888] [2021-01-06 19:33:59,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:59,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:59,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958867] [2021-01-06 19:33:59,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:59,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:59,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:59,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:59,526 INFO L87 Difference]: Start difference. First operand 274 states and 383 transitions. Second operand 3 states. [2021-01-06 19:33:59,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:59,561 INFO L93 Difference]: Finished difference Result 582 states and 849 transitions. [2021-01-06 19:33:59,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:59,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2021-01-06 19:33:59,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:59,565 INFO L225 Difference]: With dead ends: 582 [2021-01-06 19:33:59,565 INFO L226 Difference]: Without dead ends: 411 [2021-01-06 19:33:59,566 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 [2021-01-06 19:33:59,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2021-01-06 19:33:59,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 269. [2021-01-06 19:33:59,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2021-01-06 19:33:59,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 375 transitions. [2021-01-06 19:33:59,578 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 375 transitions. Word has length 93 [2021-01-06 19:33:59,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:59,578 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 375 transitions. [2021-01-06 19:33:59,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:59,578 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 375 transitions. [2021-01-06 19:33:59,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-01-06 19:33:59,579 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:59,580 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:59,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 19:33:59,580 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:59,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:59,581 INFO L82 PathProgramCache]: Analyzing trace with hash -585523819, now seen corresponding path program 1 times [2021-01-06 19:33:59,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:59,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102396658] [2021-01-06 19:33:59,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:59,655 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-01-06 19:33:59,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102396658] [2021-01-06 19:33:59,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:59,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:59,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5085854] [2021-01-06 19:33:59,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:59,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:59,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:59,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:59,659 INFO L87 Difference]: Start difference. First operand 269 states and 375 transitions. Second operand 3 states. [2021-01-06 19:33:59,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:59,694 INFO L93 Difference]: Finished difference Result 562 states and 819 transitions. [2021-01-06 19:33:59,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:59,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2021-01-06 19:33:59,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:59,698 INFO L225 Difference]: With dead ends: 562 [2021-01-06 19:33:59,698 INFO L226 Difference]: Without dead ends: 396 [2021-01-06 19:33:59,699 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 [2021-01-06 19:33:59,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-01-06 19:33:59,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 265. [2021-01-06 19:33:59,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2021-01-06 19:33:59,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 368 transitions. [2021-01-06 19:33:59,714 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 368 transitions. Word has length 98 [2021-01-06 19:33:59,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:59,715 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 368 transitions. [2021-01-06 19:33:59,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:59,715 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 368 transitions. [2021-01-06 19:33:59,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-01-06 19:33:59,716 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:59,716 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:59,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 19:33:59,716 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:59,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:59,717 INFO L82 PathProgramCache]: Analyzing trace with hash 647399793, now seen corresponding path program 1 times [2021-01-06 19:33:59,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:59,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743318862] [2021-01-06 19:33:59,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:59,776 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-01-06 19:33:59,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743318862] [2021-01-06 19:33:59,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:59,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:59,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308124590] [2021-01-06 19:33:59,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:59,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:59,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:59,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:59,778 INFO L87 Difference]: Start difference. First operand 265 states and 368 transitions. Second operand 3 states. [2021-01-06 19:33:59,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:59,811 INFO L93 Difference]: Finished difference Result 425 states and 609 transitions. [2021-01-06 19:33:59,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:59,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2021-01-06 19:33:59,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:59,815 INFO L225 Difference]: With dead ends: 425 [2021-01-06 19:33:59,815 INFO L226 Difference]: Without dead ends: 263 [2021-01-06 19:33:59,816 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 [2021-01-06 19:33:59,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-01-06 19:33:59,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 262. [2021-01-06 19:33:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-01-06 19:33:59,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 362 transitions. [2021-01-06 19:33:59,829 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 362 transitions. Word has length 104 [2021-01-06 19:33:59,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:59,829 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 362 transitions. [2021-01-06 19:33:59,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:59,829 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 362 transitions. [2021-01-06 19:33:59,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-01-06 19:33:59,830 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:59,831 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:59,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-06 19:33:59,831 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:59,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:59,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1906071582, now seen corresponding path program 1 times [2021-01-06 19:33:59,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:59,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948548361] [2021-01-06 19:33:59,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:59,914 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-01-06 19:33:59,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948548361] [2021-01-06 19:33:59,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:59,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:59,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021222578] [2021-01-06 19:33:59,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:59,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:59,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:59,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:59,917 INFO L87 Difference]: Start difference. First operand 262 states and 362 transitions. Second operand 3 states. [2021-01-06 19:33:59,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:59,936 INFO L93 Difference]: Finished difference Result 471 states and 673 transitions. [2021-01-06 19:33:59,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:59,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2021-01-06 19:33:59,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:59,939 INFO L225 Difference]: With dead ends: 471 [2021-01-06 19:33:59,939 INFO L226 Difference]: Without dead ends: 312 [2021-01-06 19:33:59,940 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 [2021-01-06 19:33:59,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-01-06 19:33:59,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 259. [2021-01-06 19:33:59,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2021-01-06 19:33:59,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 358 transitions. [2021-01-06 19:33:59,952 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 358 transitions. Word has length 112 [2021-01-06 19:33:59,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:59,952 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 358 transitions. [2021-01-06 19:33:59,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:59,953 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 358 transitions. [2021-01-06 19:33:59,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-01-06 19:33:59,954 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:59,954 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:59,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 19:33:59,955 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:59,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:59,955 INFO L82 PathProgramCache]: Analyzing trace with hash -612569653, now seen corresponding path program 1 times [2021-01-06 19:33:59,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:59,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123976640] [2021-01-06 19:33:59,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:00,047 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-01-06 19:34:00,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123976640] [2021-01-06 19:34:00,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701180195] [2021-01-06 19:34:00,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:34:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:00,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-06 19:34:00,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:00,405 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-01-06 19:34:00,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:34:00,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-01-06 19:34:00,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136903768] [2021-01-06 19:34:00,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:34:00,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:00,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:34:00,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:34:00,407 INFO L87 Difference]: Start difference. First operand 259 states and 358 transitions. Second operand 6 states. [2021-01-06 19:34:00,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:00,493 INFO L93 Difference]: Finished difference Result 540 states and 746 transitions. [2021-01-06 19:34:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:34:00,493 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2021-01-06 19:34:00,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:00,495 INFO L225 Difference]: With dead ends: 540 [2021-01-06 19:34:00,495 INFO L226 Difference]: Without dead ends: 300 [2021-01-06 19:34:00,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:34:00,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-01-06 19:34:00,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2021-01-06 19:34:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2021-01-06 19:34:00,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 408 transitions. [2021-01-06 19:34:00,509 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 408 transitions. Word has length 114 [2021-01-06 19:34:00,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:00,509 INFO L481 AbstractCegarLoop]: Abstraction has 300 states and 408 transitions. [2021-01-06 19:34:00,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:34:00,509 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 408 transitions. [2021-01-06 19:34:00,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-01-06 19:34:00,511 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:00,511 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-01-06 19:34:00,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:34:00,726 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:00,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:00,727 INFO L82 PathProgramCache]: Analyzing trace with hash 902698024, now seen corresponding path program 2 times [2021-01-06 19:34:00,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:00,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656076276] [2021-01-06 19:34:00,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:00,825 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-01-06 19:34:00,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656076276] [2021-01-06 19:34:00,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:00,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:34:00,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333090680] [2021-01-06 19:34:00,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:34:00,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:00,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:34:00,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:34:00,828 INFO L87 Difference]: Start difference. First operand 300 states and 408 transitions. Second operand 3 states. [2021-01-06 19:34:00,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:00,858 INFO L93 Difference]: Finished difference Result 486 states and 678 transitions. [2021-01-06 19:34:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:34:00,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-01-06 19:34:00,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:00,861 INFO L225 Difference]: With dead ends: 486 [2021-01-06 19:34:00,861 INFO L226 Difference]: Without dead ends: 300 [2021-01-06 19:34:00,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:34:00,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-01-06 19:34:00,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2021-01-06 19:34:00,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2021-01-06 19:34:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 405 transitions. [2021-01-06 19:34:00,875 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 405 transitions. Word has length 147 [2021-01-06 19:34:00,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:00,875 INFO L481 AbstractCegarLoop]: Abstraction has 300 states and 405 transitions. [2021-01-06 19:34:00,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:34:00,875 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 405 transitions. [2021-01-06 19:34:00,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-01-06 19:34:00,877 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:00,878 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-01-06 19:34:00,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-06 19:34:00,878 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:00,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:00,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1782612086, now seen corresponding path program 1 times [2021-01-06 19:34:00,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:00,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017783862] [2021-01-06 19:34:00,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:01,034 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:01,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017783862] [2021-01-06 19:34:01,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:01,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:34:01,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640093528] [2021-01-06 19:34:01,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:34:01,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:01,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:34:01,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:34:01,037 INFO L87 Difference]: Start difference. First operand 300 states and 405 transitions. Second operand 4 states. [2021-01-06 19:34:01,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:01,158 INFO L93 Difference]: Finished difference Result 638 states and 901 transitions. [2021-01-06 19:34:01,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:34:01,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-01-06 19:34:01,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:01,161 INFO L225 Difference]: With dead ends: 638 [2021-01-06 19:34:01,161 INFO L226 Difference]: Without dead ends: 482 [2021-01-06 19:34:01,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:01,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-01-06 19:34:01,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 386. [2021-01-06 19:34:01,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2021-01-06 19:34:01,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 527 transitions. [2021-01-06 19:34:01,182 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 527 transitions. Word has length 159 [2021-01-06 19:34:01,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:01,182 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 527 transitions. [2021-01-06 19:34:01,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:34:01,182 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 527 transitions. [2021-01-06 19:34:01,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-01-06 19:34:01,184 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:01,185 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:01,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-06 19:34:01,185 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:01,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:01,186 INFO L82 PathProgramCache]: Analyzing trace with hash 50550430, now seen corresponding path program 1 times [2021-01-06 19:34:01,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:01,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557063280] [2021-01-06 19:34:01,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:01,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557063280] [2021-01-06 19:34:01,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:01,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:34:01,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120509914] [2021-01-06 19:34:01,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:34:01,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:01,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:34:01,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:34:01,300 INFO L87 Difference]: Start difference. First operand 386 states and 527 transitions. Second operand 3 states. [2021-01-06 19:34:01,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:01,347 INFO L93 Difference]: Finished difference Result 802 states and 1140 transitions. [2021-01-06 19:34:01,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:34:01,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2021-01-06 19:34:01,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:01,351 INFO L225 Difference]: With dead ends: 802 [2021-01-06 19:34:01,351 INFO L226 Difference]: Without dead ends: 601 [2021-01-06 19:34:01,352 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 [2021-01-06 19:34:01,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-01-06 19:34:01,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 461. [2021-01-06 19:34:01,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2021-01-06 19:34:01,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 632 transitions. [2021-01-06 19:34:01,378 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 632 transitions. Word has length 178 [2021-01-06 19:34:01,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:01,379 INFO L481 AbstractCegarLoop]: Abstraction has 461 states and 632 transitions. [2021-01-06 19:34:01,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:34:01,379 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 632 transitions. [2021-01-06 19:34:01,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-01-06 19:34:01,381 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:01,381 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:01,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-06 19:34:01,381 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:01,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:01,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1249571909, now seen corresponding path program 1 times [2021-01-06 19:34:01,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:01,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725244815] [2021-01-06 19:34:01,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:01,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725244815] [2021-01-06 19:34:01,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:01,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:34:01,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709073851] [2021-01-06 19:34:01,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:34:01,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:01,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:34:01,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:34:01,502 INFO L87 Difference]: Start difference. First operand 461 states and 632 transitions. Second operand 3 states. [2021-01-06 19:34:01,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:01,556 INFO L93 Difference]: Finished difference Result 961 states and 1366 transitions. [2021-01-06 19:34:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:34:01,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2021-01-06 19:34:01,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:01,561 INFO L225 Difference]: With dead ends: 961 [2021-01-06 19:34:01,561 INFO L226 Difference]: Without dead ends: 714 [2021-01-06 19:34:01,562 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 [2021-01-06 19:34:01,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2021-01-06 19:34:01,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 561. [2021-01-06 19:34:01,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2021-01-06 19:34:01,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 774 transitions. [2021-01-06 19:34:01,595 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 774 transitions. Word has length 179 [2021-01-06 19:34:01,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:01,596 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 774 transitions. [2021-01-06 19:34:01,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:34:01,596 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 774 transitions. [2021-01-06 19:34:01,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-01-06 19:34:01,598 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:01,598 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:01,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-06 19:34:01,599 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:01,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:01,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1835814759, now seen corresponding path program 1 times [2021-01-06 19:34:01,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:01,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938677718] [2021-01-06 19:34:01,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:01,689 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:01,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938677718] [2021-01-06 19:34:01,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:01,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:34:01,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043384148] [2021-01-06 19:34:01,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:34:01,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:01,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:34:01,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:34:01,691 INFO L87 Difference]: Start difference. First operand 561 states and 774 transitions. Second operand 3 states. [2021-01-06 19:34:01,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:01,755 INFO L93 Difference]: Finished difference Result 1147 states and 1640 transitions. [2021-01-06 19:34:01,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:34:01,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2021-01-06 19:34:01,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:01,761 INFO L225 Difference]: With dead ends: 1147 [2021-01-06 19:34:01,761 INFO L226 Difference]: Without dead ends: 832 [2021-01-06 19:34:01,762 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 [2021-01-06 19:34:01,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2021-01-06 19:34:01,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 651. [2021-01-06 19:34:01,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2021-01-06 19:34:01,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 910 transitions. [2021-01-06 19:34:01,804 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 910 transitions. Word has length 180 [2021-01-06 19:34:01,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:01,805 INFO L481 AbstractCegarLoop]: Abstraction has 651 states and 910 transitions. [2021-01-06 19:34:01,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:34:01,805 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 910 transitions. [2021-01-06 19:34:01,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-01-06 19:34:01,808 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:01,808 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:01,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-06 19:34:01,809 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:01,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:01,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1616960041, now seen corresponding path program 1 times [2021-01-06 19:34:01,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:01,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162066479] [2021-01-06 19:34:01,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-01-06 19:34:01,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162066479] [2021-01-06 19:34:01,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248349170] [2021-01-06 19:34:01,969 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 [2021-01-06 19:34:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:02,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:34:02,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:02,379 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:02,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:34:02,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-01-06 19:34:02,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171167912] [2021-01-06 19:34:02,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:34:02,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:02,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:34:02,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:02,381 INFO L87 Difference]: Start difference. First operand 651 states and 910 transitions. Second operand 3 states. [2021-01-06 19:34:02,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:02,487 INFO L93 Difference]: Finished difference Result 1311 states and 1826 transitions. [2021-01-06 19:34:02,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:34:02,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2021-01-06 19:34:02,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:02,492 INFO L225 Difference]: With dead ends: 1311 [2021-01-06 19:34:02,492 INFO L226 Difference]: Without dead ends: 914 [2021-01-06 19:34:02,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:02,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2021-01-06 19:34:02,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 651. [2021-01-06 19:34:02,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2021-01-06 19:34:02,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 901 transitions. [2021-01-06 19:34:02,555 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 901 transitions. Word has length 180 [2021-01-06 19:34:02,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:02,556 INFO L481 AbstractCegarLoop]: Abstraction has 651 states and 901 transitions. [2021-01-06 19:34:02,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:34:02,556 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 901 transitions. [2021-01-06 19:34:02,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-01-06 19:34:02,558 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:02,559 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:02,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-01-06 19:34:02,773 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:02,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:02,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1226032999, now seen corresponding path program 1 times [2021-01-06 19:34:02,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:02,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719932504] [2021-01-06 19:34:02,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:02,875 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-01-06 19:34:02,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719932504] [2021-01-06 19:34:02,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375183604] [2021-01-06 19:34:02,876 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 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 [2021-01-06 19:34:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:03,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:34:03,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:03,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:34:03,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-01-06 19:34:03,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299730478] [2021-01-06 19:34:03,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:34:03,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:03,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:34:03,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:03,291 INFO L87 Difference]: Start difference. First operand 651 states and 901 transitions. Second operand 3 states. [2021-01-06 19:34:03,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:03,458 INFO L93 Difference]: Finished difference Result 1543 states and 2178 transitions. [2021-01-06 19:34:03,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:34:03,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2021-01-06 19:34:03,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:03,465 INFO L225 Difference]: With dead ends: 1543 [2021-01-06 19:34:03,465 INFO L226 Difference]: Without dead ends: 1146 [2021-01-06 19:34:03,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:03,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2021-01-06 19:34:03,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 651. [2021-01-06 19:34:03,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2021-01-06 19:34:03,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 900 transitions. [2021-01-06 19:34:03,510 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 900 transitions. Word has length 181 [2021-01-06 19:34:03,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:03,510 INFO L481 AbstractCegarLoop]: Abstraction has 651 states and 900 transitions. [2021-01-06 19:34:03,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:34:03,511 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 900 transitions. [2021-01-06 19:34:03,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-01-06 19:34:03,513 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:03,513 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:03,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:34:03,730 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:03,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:03,731 INFO L82 PathProgramCache]: Analyzing trace with hash -442222367, now seen corresponding path program 1 times [2021-01-06 19:34:03,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:03,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343523161] [2021-01-06 19:34:03,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:03,867 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-01-06 19:34:03,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343523161] [2021-01-06 19:34:03,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848635568] [2021-01-06 19:34:03,868 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 [2021-01-06 19:34:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:04,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-06 19:34:04,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:04,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 19:34:04,317 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:04,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:34:04,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-01-06 19:34:04,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955163878] [2021-01-06 19:34:04,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:34:04,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:04,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:34:04,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:34:04,320 INFO L87 Difference]: Start difference. First operand 651 states and 900 transitions. Second operand 4 states. [2021-01-06 19:34:04,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:04,426 INFO L93 Difference]: Finished difference Result 1074 states and 1509 transitions. [2021-01-06 19:34:04,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:34:04,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 182 [2021-01-06 19:34:04,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:04,432 INFO L225 Difference]: With dead ends: 1074 [2021-01-06 19:34:04,432 INFO L226 Difference]: Without dead ends: 1072 [2021-01-06 19:34:04,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:34:04,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-01-06 19:34:04,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 653. [2021-01-06 19:34:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2021-01-06 19:34:04,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 902 transitions. [2021-01-06 19:34:04,482 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 902 transitions. Word has length 182 [2021-01-06 19:34:04,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:04,482 INFO L481 AbstractCegarLoop]: Abstraction has 653 states and 902 transitions. [2021-01-06 19:34:04,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:34:04,482 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 902 transitions. [2021-01-06 19:34:04,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-01-06 19:34:04,484 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:04,485 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:04,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-01-06 19:34:04,699 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:04,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:04,700 INFO L82 PathProgramCache]: Analyzing trace with hash 323725361, now seen corresponding path program 1 times [2021-01-06 19:34:04,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:04,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558534534] [2021-01-06 19:34:04,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:04,889 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-01-06 19:34:04,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558534534] [2021-01-06 19:34:04,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982259875] [2021-01-06 19:34:04,890 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 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 [2021-01-06 19:34:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:05,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 19:34:05,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-01-06 19:34:05,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:34:05,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-01-06 19:34:05,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803650241] [2021-01-06 19:34:05,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 19:34:05,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:05,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 19:34:05,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:34:05,395 INFO L87 Difference]: Start difference. First operand 653 states and 902 transitions. Second operand 11 states. [2021-01-06 19:34:06,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:06,231 INFO L93 Difference]: Finished difference Result 4009 states and 5782 transitions. [2021-01-06 19:34:06,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-06 19:34:06,231 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 185 [2021-01-06 19:34:06,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:06,249 INFO L225 Difference]: With dead ends: 4009 [2021-01-06 19:34:06,249 INFO L226 Difference]: Without dead ends: 3610 [2021-01-06 19:34:06,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2021-01-06 19:34:06,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2021-01-06 19:34:06,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 887. [2021-01-06 19:34:06,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 887 states. [2021-01-06 19:34:06,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1208 transitions. [2021-01-06 19:34:06,334 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1208 transitions. Word has length 185 [2021-01-06 19:34:06,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:06,334 INFO L481 AbstractCegarLoop]: Abstraction has 887 states and 1208 transitions. [2021-01-06 19:34:06,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 19:34:06,335 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1208 transitions. [2021-01-06 19:34:06,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-01-06 19:34:06,337 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:06,338 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:06,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-01-06 19:34:06,552 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:06,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:06,553 INFO L82 PathProgramCache]: Analyzing trace with hash -956138317, now seen corresponding path program 1 times [2021-01-06 19:34:06,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:06,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640561585] [2021-01-06 19:34:06,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:06,649 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:06,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640561585] [2021-01-06 19:34:06,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:06,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:34:06,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394217409] [2021-01-06 19:34:06,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:34:06,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:06,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:34:06,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:34:06,652 INFO L87 Difference]: Start difference. First operand 887 states and 1208 transitions. Second operand 3 states. [2021-01-06 19:34:06,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:06,818 INFO L93 Difference]: Finished difference Result 1989 states and 2755 transitions. [2021-01-06 19:34:06,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:34:06,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2021-01-06 19:34:06,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:06,826 INFO L225 Difference]: With dead ends: 1989 [2021-01-06 19:34:06,827 INFO L226 Difference]: Without dead ends: 1590 [2021-01-06 19:34:06,828 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 [2021-01-06 19:34:06,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2021-01-06 19:34:06,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 887. [2021-01-06 19:34:06,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 887 states. [2021-01-06 19:34:06,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1206 transitions. [2021-01-06 19:34:06,897 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1206 transitions. Word has length 185 [2021-01-06 19:34:06,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:06,898 INFO L481 AbstractCegarLoop]: Abstraction has 887 states and 1206 transitions. [2021-01-06 19:34:06,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:34:06,898 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1206 transitions. [2021-01-06 19:34:06,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-01-06 19:34:06,901 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:06,901 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:06,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-01-06 19:34:06,902 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:06,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:06,902 INFO L82 PathProgramCache]: Analyzing trace with hash -2032500147, now seen corresponding path program 1 times [2021-01-06 19:34:06,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:06,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518956098] [2021-01-06 19:34:06,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:06,966 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-01-06 19:34:06,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518956098] [2021-01-06 19:34:06,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:06,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:34:06,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697006739] [2021-01-06 19:34:06,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:34:06,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:06,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:34:06,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:34:06,968 INFO L87 Difference]: Start difference. First operand 887 states and 1206 transitions. Second operand 3 states. [2021-01-06 19:34:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:07,067 INFO L93 Difference]: Finished difference Result 1495 states and 2053 transitions. [2021-01-06 19:34:07,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:34:07,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2021-01-06 19:34:07,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:07,071 INFO L225 Difference]: With dead ends: 1495 [2021-01-06 19:34:07,071 INFO L226 Difference]: Without dead ends: 729 [2021-01-06 19:34:07,072 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 [2021-01-06 19:34:07,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-01-06 19:34:07,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 728. [2021-01-06 19:34:07,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2021-01-06 19:34:07,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 973 transitions. [2021-01-06 19:34:07,123 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 973 transitions. Word has length 188 [2021-01-06 19:34:07,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:07,123 INFO L481 AbstractCegarLoop]: Abstraction has 728 states and 973 transitions. [2021-01-06 19:34:07,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:34:07,123 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 973 transitions. [2021-01-06 19:34:07,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-01-06 19:34:07,126 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:07,126 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:07,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-01-06 19:34:07,127 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:07,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:07,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1131328969, now seen corresponding path program 1 times [2021-01-06 19:34:07,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:07,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623124688] [2021-01-06 19:34:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:07,322 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:07,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623124688] [2021-01-06 19:34:07,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:07,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 19:34:07,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80929579] [2021-01-06 19:34:07,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 19:34:07,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:07,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 19:34:07,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:34:07,324 INFO L87 Difference]: Start difference. First operand 728 states and 973 transitions. Second operand 9 states. [2021-01-06 19:34:08,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:08,562 INFO L93 Difference]: Finished difference Result 2426 states and 3336 transitions. [2021-01-06 19:34:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-06 19:34:08,562 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 193 [2021-01-06 19:34:08,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:08,572 INFO L225 Difference]: With dead ends: 2426 [2021-01-06 19:34:08,573 INFO L226 Difference]: Without dead ends: 2038 [2021-01-06 19:34:08,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=265, Invalid=791, Unknown=0, NotChecked=0, Total=1056 [2021-01-06 19:34:08,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2021-01-06 19:34:08,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 920. [2021-01-06 19:34:08,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 920 states. [2021-01-06 19:34:08,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1211 transitions. [2021-01-06 19:34:08,658 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1211 transitions. Word has length 193 [2021-01-06 19:34:08,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:08,658 INFO L481 AbstractCegarLoop]: Abstraction has 920 states and 1211 transitions. [2021-01-06 19:34:08,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 19:34:08,658 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1211 transitions. [2021-01-06 19:34:08,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-01-06 19:34:08,661 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:08,662 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:08,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-01-06 19:34:08,662 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:08,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:08,663 INFO L82 PathProgramCache]: Analyzing trace with hash -707682247, now seen corresponding path program 1 times [2021-01-06 19:34:08,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:08,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62490171] [2021-01-06 19:34:08,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:08,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62490171] [2021-01-06 19:34:08,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:08,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:34:08,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024619260] [2021-01-06 19:34:08,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:34:08,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:08,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:34:08,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:34:08,790 INFO L87 Difference]: Start difference. First operand 920 states and 1211 transitions. Second operand 4 states. [2021-01-06 19:34:09,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:09,022 INFO L93 Difference]: Finished difference Result 1725 states and 2292 transitions. [2021-01-06 19:34:09,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:34:09,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 193 [2021-01-06 19:34:09,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:09,032 INFO L225 Difference]: With dead ends: 1725 [2021-01-06 19:34:09,032 INFO L226 Difference]: Without dead ends: 1145 [2021-01-06 19:34:09,033 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 [2021-01-06 19:34:09,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2021-01-06 19:34:09,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 839. [2021-01-06 19:34:09,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 839 states. [2021-01-06 19:34:09,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1105 transitions. [2021-01-06 19:34:09,118 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1105 transitions. Word has length 193 [2021-01-06 19:34:09,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:09,118 INFO L481 AbstractCegarLoop]: Abstraction has 839 states and 1105 transitions. [2021-01-06 19:34:09,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:34:09,119 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1105 transitions. [2021-01-06 19:34:09,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-01-06 19:34:09,122 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:09,122 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:09,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-01-06 19:34:09,123 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:09,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:09,123 INFO L82 PathProgramCache]: Analyzing trace with hash 429032051, now seen corresponding path program 1 times [2021-01-06 19:34:09,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:09,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50131654] [2021-01-06 19:34:09,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:09,272 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:09,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50131654] [2021-01-06 19:34:09,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:09,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:34:09,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683885737] [2021-01-06 19:34:09,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:34:09,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:09,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:34:09,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:09,274 INFO L87 Difference]: Start difference. First operand 839 states and 1105 transitions. Second operand 5 states. [2021-01-06 19:34:09,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:09,477 INFO L93 Difference]: Finished difference Result 2378 states and 3252 transitions. [2021-01-06 19:34:09,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:34:09,477 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2021-01-06 19:34:09,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:09,483 INFO L225 Difference]: With dead ends: 2378 [2021-01-06 19:34:09,483 INFO L226 Difference]: Without dead ends: 1873 [2021-01-06 19:34:09,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:09,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2021-01-06 19:34:09,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 916. [2021-01-06 19:34:09,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 916 states. [2021-01-06 19:34:09,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1203 transitions. [2021-01-06 19:34:09,570 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1203 transitions. Word has length 199 [2021-01-06 19:34:09,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:09,571 INFO L481 AbstractCegarLoop]: Abstraction has 916 states and 1203 transitions. [2021-01-06 19:34:09,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:34:09,571 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1203 transitions. [2021-01-06 19:34:09,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-01-06 19:34:09,573 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:09,574 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:09,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-01-06 19:34:09,574 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:09,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:09,575 INFO L82 PathProgramCache]: Analyzing trace with hash 486290353, now seen corresponding path program 1 times [2021-01-06 19:34:09,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:09,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765888126] [2021-01-06 19:34:09,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:09,820 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:09,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765888126] [2021-01-06 19:34:09,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:09,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-06 19:34:09,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629387342] [2021-01-06 19:34:09,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 19:34:09,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:09,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 19:34:09,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-01-06 19:34:09,824 INFO L87 Difference]: Start difference. First operand 916 states and 1203 transitions. Second operand 10 states. [2021-01-06 19:34:12,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:12,236 INFO L93 Difference]: Finished difference Result 4484 states and 5885 transitions. [2021-01-06 19:34:12,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-01-06 19:34:12,240 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2021-01-06 19:34:12,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:12,250 INFO L225 Difference]: With dead ends: 4484 [2021-01-06 19:34:12,250 INFO L226 Difference]: Without dead ends: 3905 [2021-01-06 19:34:12,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=396, Invalid=1674, Unknown=0, NotChecked=0, Total=2070 [2021-01-06 19:34:12,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2021-01-06 19:34:12,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 1321. [2021-01-06 19:34:12,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1321 states. [2021-01-06 19:34:12,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1694 transitions. [2021-01-06 19:34:12,400 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1694 transitions. Word has length 199 [2021-01-06 19:34:12,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:12,401 INFO L481 AbstractCegarLoop]: Abstraction has 1321 states and 1694 transitions. [2021-01-06 19:34:12,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 19:34:12,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1694 transitions. [2021-01-06 19:34:12,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-01-06 19:34:12,403 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:12,404 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:12,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-01-06 19:34:12,404 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:12,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:12,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1235842579, now seen corresponding path program 1 times [2021-01-06 19:34:12,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:12,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268206596] [2021-01-06 19:34:12,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:12,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268206596] [2021-01-06 19:34:12,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:12,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 19:34:12,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431473688] [2021-01-06 19:34:12,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 19:34:12,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:12,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 19:34:12,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:34:12,648 INFO L87 Difference]: Start difference. First operand 1321 states and 1694 transitions. Second operand 9 states. [2021-01-06 19:34:13,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:13,985 INFO L93 Difference]: Finished difference Result 3720 states and 4817 transitions. [2021-01-06 19:34:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-06 19:34:13,986 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 199 [2021-01-06 19:34:13,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:13,993 INFO L225 Difference]: With dead ends: 3720 [2021-01-06 19:34:13,993 INFO L226 Difference]: Without dead ends: 2731 [2021-01-06 19:34:13,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2021-01-06 19:34:13,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2021-01-06 19:34:14,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 1410. [2021-01-06 19:34:14,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1410 states. [2021-01-06 19:34:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1797 transitions. [2021-01-06 19:34:14,178 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1797 transitions. Word has length 199 [2021-01-06 19:34:14,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:14,179 INFO L481 AbstractCegarLoop]: Abstraction has 1410 states and 1797 transitions. [2021-01-06 19:34:14,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 19:34:14,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1797 transitions. [2021-01-06 19:34:14,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-01-06 19:34:14,181 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:14,182 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:34:14,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-01-06 19:34:14,182 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:14,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:14,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1321458105, now seen corresponding path program 1 times [2021-01-06 19:34:14,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:14,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798501998] [2021-01-06 19:34:14,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-01-06 19:34:14,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798501998] [2021-01-06 19:34:14,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:14,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:34:14,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359717139] [2021-01-06 19:34:14,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:34:14,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:14,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:34:14,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:34:14,295 INFO L87 Difference]: Start difference. First operand 1410 states and 1797 transitions. Second operand 4 states. [2021-01-06 19:34:14,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:14,600 INFO L93 Difference]: Finished difference Result 2621 states and 3370 transitions. [2021-01-06 19:34:14,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:34:14,600 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 208 [2021-01-06 19:34:14,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:14,604 INFO L225 Difference]: With dead ends: 2621 [2021-01-06 19:34:14,605 INFO L226 Difference]: Without dead ends: 1551 [2021-01-06 19:34:14,606 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 [2021-01-06 19:34:14,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2021-01-06 19:34:14,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1191. [2021-01-06 19:34:14,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1191 states. [2021-01-06 19:34:14,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1495 transitions. [2021-01-06 19:34:14,722 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1495 transitions. Word has length 208 [2021-01-06 19:34:14,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:14,722 INFO L481 AbstractCegarLoop]: Abstraction has 1191 states and 1495 transitions. [2021-01-06 19:34:14,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:34:14,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1495 transitions. [2021-01-06 19:34:14,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-01-06 19:34:14,725 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:14,726 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:34:14,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-01-06 19:34:14,726 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:14,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:14,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1189534796, now seen corresponding path program 1 times [2021-01-06 19:34:14,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:14,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142053498] [2021-01-06 19:34:14,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 43 proven. 9 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-01-06 19:34:15,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142053498] [2021-01-06 19:34:15,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023013961] [2021-01-06 19:34:15,175 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 [2021-01-06 19:34:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:15,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:34:15,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:15,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:34:15,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2021-01-06 19:34:15,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101814131] [2021-01-06 19:34:15,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 19:34:15,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:15,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 19:34:15,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2021-01-06 19:34:15,770 INFO L87 Difference]: Start difference. First operand 1191 states and 1495 transitions. Second operand 16 states. [2021-01-06 19:34:22,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:22,032 INFO L93 Difference]: Finished difference Result 9726 states and 12212 transitions. [2021-01-06 19:34:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-01-06 19:34:22,032 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 234 [2021-01-06 19:34:22,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:22,049 INFO L225 Difference]: With dead ends: 9726 [2021-01-06 19:34:22,049 INFO L226 Difference]: Without dead ends: 8826 [2021-01-06 19:34:22,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6188 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1592, Invalid=15438, Unknown=0, NotChecked=0, Total=17030 [2021-01-06 19:34:22,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8826 states. [2021-01-06 19:34:22,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8826 to 2749. [2021-01-06 19:34:22,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2749 states. [2021-01-06 19:34:22,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 3378 transitions. [2021-01-06 19:34:22,414 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 3378 transitions. Word has length 234 [2021-01-06 19:34:22,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:22,415 INFO L481 AbstractCegarLoop]: Abstraction has 2749 states and 3378 transitions. [2021-01-06 19:34:22,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 19:34:22,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 3378 transitions. [2021-01-06 19:34:22,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-01-06 19:34:22,422 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:22,422 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:34:22,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-01-06 19:34:22,636 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:22,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:22,637 INFO L82 PathProgramCache]: Analyzing trace with hash 776181296, now seen corresponding path program 1 times [2021-01-06 19:34:22,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:22,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538334917] [2021-01-06 19:34:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:22,732 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-01-06 19:34:22,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538334917] [2021-01-06 19:34:22,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:22,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:34:22,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999808143] [2021-01-06 19:34:22,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:34:22,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:22,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:34:22,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:34:22,734 INFO L87 Difference]: Start difference. First operand 2749 states and 3378 transitions. Second operand 3 states. [2021-01-06 19:34:23,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:23,063 INFO L93 Difference]: Finished difference Result 5372 states and 6576 transitions. [2021-01-06 19:34:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:34:23,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2021-01-06 19:34:23,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:23,070 INFO L225 Difference]: With dead ends: 5372 [2021-01-06 19:34:23,070 INFO L226 Difference]: Without dead ends: 3168 [2021-01-06 19:34:23,072 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 [2021-01-06 19:34:23,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3168 states. [2021-01-06 19:34:23,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3168 to 2717. [2021-01-06 19:34:23,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2717 states. [2021-01-06 19:34:23,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 3218 transitions. [2021-01-06 19:34:23,343 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 3218 transitions. Word has length 234 [2021-01-06 19:34:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:23,344 INFO L481 AbstractCegarLoop]: Abstraction has 2717 states and 3218 transitions. [2021-01-06 19:34:23,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:34:23,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 3218 transitions. [2021-01-06 19:34:23,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-01-06 19:34:23,350 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:23,350 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:34:23,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-01-06 19:34:23,351 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:23,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:23,351 INFO L82 PathProgramCache]: Analyzing trace with hash -283899387, now seen corresponding path program 1 times [2021-01-06 19:34:23,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:23,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937860633] [2021-01-06 19:34:23,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-01-06 19:34:23,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937860633] [2021-01-06 19:34:23,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:23,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:34:23,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853537848] [2021-01-06 19:34:23,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:34:23,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:23,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:34:23,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:34:23,422 INFO L87 Difference]: Start difference. First operand 2717 states and 3218 transitions. Second operand 3 states. [2021-01-06 19:34:23,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:23,640 INFO L93 Difference]: Finished difference Result 5141 states and 6077 transitions. [2021-01-06 19:34:23,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:34:23,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2021-01-06 19:34:23,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:23,645 INFO L225 Difference]: With dead ends: 5141 [2021-01-06 19:34:23,645 INFO L226 Difference]: Without dead ends: 2437 [2021-01-06 19:34:23,648 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 [2021-01-06 19:34:23,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2021-01-06 19:34:23,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2437. [2021-01-06 19:34:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2437 states. [2021-01-06 19:34:23,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 2865 transitions. [2021-01-06 19:34:23,966 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 2865 transitions. Word has length 243 [2021-01-06 19:34:23,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:23,966 INFO L481 AbstractCegarLoop]: Abstraction has 2437 states and 2865 transitions. [2021-01-06 19:34:23,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:34:23,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 2865 transitions. [2021-01-06 19:34:23,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-01-06 19:34:23,972 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:23,972 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:34:23,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-01-06 19:34:23,972 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:23,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:23,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1550842144, now seen corresponding path program 1 times [2021-01-06 19:34:23,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:23,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230903331] [2021-01-06 19:34:23,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:24,293 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 8 proven. 35 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:24,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230903331] [2021-01-06 19:34:24,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669636752] [2021-01-06 19:34:24,293 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 [2021-01-06 19:34:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:24,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:34:24,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:24,928 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 8 proven. 35 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:24,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:34:24,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 9 [2021-01-06 19:34:24,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860050763] [2021-01-06 19:34:24,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 19:34:24,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:24,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 19:34:24,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:34:24,931 INFO L87 Difference]: Start difference. First operand 2437 states and 2865 transitions. Second operand 9 states. [2021-01-06 19:34:26,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:26,891 INFO L93 Difference]: Finished difference Result 13398 states and 15891 transitions. [2021-01-06 19:34:26,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-06 19:34:26,891 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 246 [2021-01-06 19:34:26,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:26,910 INFO L225 Difference]: With dead ends: 13398 [2021-01-06 19:34:26,910 INFO L226 Difference]: Without dead ends: 11310 [2021-01-06 19:34:26,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 253 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=340, Invalid=1382, Unknown=0, NotChecked=0, Total=1722 [2021-01-06 19:34:26,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11310 states. [2021-01-06 19:34:27,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11310 to 7572. [2021-01-06 19:34:27,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7572 states. [2021-01-06 19:34:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7572 states to 7572 states and 8833 transitions. [2021-01-06 19:34:27,781 INFO L78 Accepts]: Start accepts. Automaton has 7572 states and 8833 transitions. Word has length 246 [2021-01-06 19:34:27,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:27,782 INFO L481 AbstractCegarLoop]: Abstraction has 7572 states and 8833 transitions. [2021-01-06 19:34:27,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 19:34:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 7572 states and 8833 transitions. [2021-01-06 19:34:27,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-01-06 19:34:27,796 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:27,797 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:34:28,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-01-06 19:34:28,013 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:28,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:28,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1198941364, now seen corresponding path program 1 times [2021-01-06 19:34:28,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:28,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858979102] [2021-01-06 19:34:28,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:28,302 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 26 proven. 19 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:28,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858979102] [2021-01-06 19:34:28,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244464368] [2021-01-06 19:34:28,303 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 [2021-01-06 19:34:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:28,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 28 conjunts are in the unsatisfiable core [2021-01-06 19:34:28,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:29,001 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 37 proven. 17 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-01-06 19:34:29,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:34:29,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2021-01-06 19:34:29,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615762961] [2021-01-06 19:34:29,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 19:34:29,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:29,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 19:34:29,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-01-06 19:34:29,003 INFO L87 Difference]: Start difference. First operand 7572 states and 8833 transitions. Second operand 15 states. [2021-01-06 19:34:36,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:36,466 INFO L93 Difference]: Finished difference Result 32827 states and 39279 transitions. [2021-01-06 19:34:36,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-01-06 19:34:36,466 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 247 [2021-01-06 19:34:36,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:36,505 INFO L225 Difference]: With dead ends: 32827 [2021-01-06 19:34:36,506 INFO L226 Difference]: Without dead ends: 25677 [2021-01-06 19:34:36,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1821 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=888, Invalid=4964, Unknown=0, NotChecked=0, Total=5852 [2021-01-06 19:34:36,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25677 states. [2021-01-06 19:34:37,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25677 to 11401. [2021-01-06 19:34:37,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11401 states. [2021-01-06 19:34:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11401 states to 11401 states and 13350 transitions. [2021-01-06 19:34:37,996 INFO L78 Accepts]: Start accepts. Automaton has 11401 states and 13350 transitions. Word has length 247 [2021-01-06 19:34:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:37,996 INFO L481 AbstractCegarLoop]: Abstraction has 11401 states and 13350 transitions. [2021-01-06 19:34:37,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 19:34:37,996 INFO L276 IsEmpty]: Start isEmpty. Operand 11401 states and 13350 transitions. [2021-01-06 19:34:38,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-01-06 19:34:38,015 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:38,016 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:34:38,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:34:38,230 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:38,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:38,231 INFO L82 PathProgramCache]: Analyzing trace with hash -801778218, now seen corresponding path program 1 times [2021-01-06 19:34:38,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:38,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718983683] [2021-01-06 19:34:38,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:38,690 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 2 proven. 43 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:38,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718983683] [2021-01-06 19:34:38,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104507139] [2021-01-06 19:34:38,691 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 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 [2021-01-06 19:34:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:38,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 19:34:38,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:39,295 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-01-06 19:34:39,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:34:39,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 18 [2021-01-06 19:34:39,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345715336] [2021-01-06 19:34:39,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 19:34:39,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:39,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 19:34:39,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-01-06 19:34:39,298 INFO L87 Difference]: Start difference. First operand 11401 states and 13350 transitions. Second operand 7 states. [2021-01-06 19:34:42,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:42,523 INFO L93 Difference]: Finished difference Result 34533 states and 41046 transitions. [2021-01-06 19:34:42,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-06 19:34:42,524 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 254 [2021-01-06 19:34:42,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:42,552 INFO L225 Difference]: With dead ends: 34533 [2021-01-06 19:34:42,553 INFO L226 Difference]: Without dead ends: 23753 [2021-01-06 19:34:42,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2021-01-06 19:34:42,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23753 states. [2021-01-06 19:34:43,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23753 to 8463. [2021-01-06 19:34:43,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8463 states. [2021-01-06 19:34:43,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8463 states to 8463 states and 10024 transitions. [2021-01-06 19:34:43,853 INFO L78 Accepts]: Start accepts. Automaton has 8463 states and 10024 transitions. Word has length 254 [2021-01-06 19:34:43,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:43,853 INFO L481 AbstractCegarLoop]: Abstraction has 8463 states and 10024 transitions. [2021-01-06 19:34:43,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 19:34:43,854 INFO L276 IsEmpty]: Start isEmpty. Operand 8463 states and 10024 transitions. [2021-01-06 19:34:43,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-01-06 19:34:43,864 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:43,865 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:34:44,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:34:44,066 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:44,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:44,067 INFO L82 PathProgramCache]: Analyzing trace with hash 710945810, now seen corresponding path program 1 times [2021-01-06 19:34:44,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:44,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315433659] [2021-01-06 19:34:44,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:44,276 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-01-06 19:34:44,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315433659] [2021-01-06 19:34:44,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:44,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:34:44,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269963707] [2021-01-06 19:34:44,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:34:44,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:44,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:34:44,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:44,279 INFO L87 Difference]: Start difference. First operand 8463 states and 10024 transitions. Second operand 5 states. [2021-01-06 19:34:45,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:45,230 INFO L93 Difference]: Finished difference Result 16457 states and 19528 transitions. [2021-01-06 19:34:45,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:34:45,231 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 254 [2021-01-06 19:34:45,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:45,238 INFO L225 Difference]: With dead ends: 16457 [2021-01-06 19:34:45,238 INFO L226 Difference]: Without dead ends: 8463 [2021-01-06 19:34:45,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:45,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8463 states. [2021-01-06 19:34:46,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8463 to 8463. [2021-01-06 19:34:46,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8463 states. [2021-01-06 19:34:46,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8463 states to 8463 states and 10017 transitions. [2021-01-06 19:34:46,226 INFO L78 Accepts]: Start accepts. Automaton has 8463 states and 10017 transitions. Word has length 254 [2021-01-06 19:34:46,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:46,226 INFO L481 AbstractCegarLoop]: Abstraction has 8463 states and 10017 transitions. [2021-01-06 19:34:46,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:34:46,226 INFO L276 IsEmpty]: Start isEmpty. Operand 8463 states and 10017 transitions. [2021-01-06 19:34:46,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-01-06 19:34:46,236 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:46,236 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:34:46,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-01-06 19:34:46,236 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:46,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:46,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1283036349, now seen corresponding path program 1 times [2021-01-06 19:34:46,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:46,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553513390] [2021-01-06 19:34:46,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:46,717 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 21 proven. 19 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:46,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553513390] [2021-01-06 19:34:46,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147411725] [2021-01-06 19:34:46,718 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 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 [2021-01-06 19:34:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:46,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 28 conjunts are in the unsatisfiable core [2021-01-06 19:34:46,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:47,371 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-01-06 19:34:47,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:34:47,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2021-01-06 19:34:47,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657287617] [2021-01-06 19:34:47,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-06 19:34:47,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:47,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-06 19:34:47,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-01-06 19:34:47,374 INFO L87 Difference]: Start difference. First operand 8463 states and 10017 transitions. Second operand 18 states. [2021-01-06 19:34:47,977 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2021-01-06 19:35:02,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:02,661 INFO L93 Difference]: Finished difference Result 49086 states and 61098 transitions. [2021-01-06 19:35:02,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-01-06 19:35:02,661 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 255 [2021-01-06 19:35:02,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:02,703 INFO L225 Difference]: With dead ends: 49086 [2021-01-06 19:35:02,704 INFO L226 Difference]: Without dead ends: 41178 [2021-01-06 19:35:02,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3976 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1797, Invalid=9975, Unknown=0, NotChecked=0, Total=11772 [2021-01-06 19:35:02,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41178 states. [2021-01-06 19:35:04,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41178 to 12880. [2021-01-06 19:35:04,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12880 states. [2021-01-06 19:35:04,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12880 states to 12880 states and 15331 transitions. [2021-01-06 19:35:04,443 INFO L78 Accepts]: Start accepts. Automaton has 12880 states and 15331 transitions. Word has length 255 [2021-01-06 19:35:04,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:04,443 INFO L481 AbstractCegarLoop]: Abstraction has 12880 states and 15331 transitions. [2021-01-06 19:35:04,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-01-06 19:35:04,443 INFO L276 IsEmpty]: Start isEmpty. Operand 12880 states and 15331 transitions. [2021-01-06 19:35:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-01-06 19:35:04,457 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:04,457 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:35:04,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-01-06 19:35:04,665 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:04,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:04,666 INFO L82 PathProgramCache]: Analyzing trace with hash -396305291, now seen corresponding path program 1 times [2021-01-06 19:35:04,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:04,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75553410] [2021-01-06 19:35:04,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:05,016 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-01-06 19:35:05,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75553410] [2021-01-06 19:35:05,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:35:05,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:35:05,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339083499] [2021-01-06 19:35:05,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:35:05,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:05,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:35:05,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:35:05,019 INFO L87 Difference]: Start difference. First operand 12880 states and 15331 transitions. Second operand 5 states. [2021-01-06 19:35:06,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:06,785 INFO L93 Difference]: Finished difference Result 25243 states and 30096 transitions. [2021-01-06 19:35:06,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:35:06,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2021-01-06 19:35:06,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:06,802 INFO L225 Difference]: With dead ends: 25243 [2021-01-06 19:35:06,802 INFO L226 Difference]: Without dead ends: 12920 [2021-01-06 19:35:06,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:35:06,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12920 states. [2021-01-06 19:35:08,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12920 to 12910. [2021-01-06 19:35:08,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12910 states. [2021-01-06 19:35:08,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12910 states to 12910 states and 15341 transitions. [2021-01-06 19:35:08,265 INFO L78 Accepts]: Start accepts. Automaton has 12910 states and 15341 transitions. Word has length 271 [2021-01-06 19:35:08,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:08,265 INFO L481 AbstractCegarLoop]: Abstraction has 12910 states and 15341 transitions. [2021-01-06 19:35:08,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:35:08,265 INFO L276 IsEmpty]: Start isEmpty. Operand 12910 states and 15341 transitions. [2021-01-06 19:35:08,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-01-06 19:35:08,278 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:08,279 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:35:08,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-01-06 19:35:08,279 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:08,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:08,279 INFO L82 PathProgramCache]: Analyzing trace with hash -2482298, now seen corresponding path program 1 times [2021-01-06 19:35:08,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:08,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516761019] [2021-01-06 19:35:08,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:08,516 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-01-06 19:35:08,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516761019] [2021-01-06 19:35:08,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:35:08,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 19:35:08,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545451871] [2021-01-06 19:35:08,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 19:35:08,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:08,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 19:35:08,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:35:08,518 INFO L87 Difference]: Start difference. First operand 12910 states and 15341 transitions. Second operand 7 states. [2021-01-06 19:35:11,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:11,426 INFO L93 Difference]: Finished difference Result 31176 states and 37767 transitions. [2021-01-06 19:35:11,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:35:11,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 271 [2021-01-06 19:35:11,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:11,443 INFO L225 Difference]: With dead ends: 31176 [2021-01-06 19:35:11,443 INFO L226 Difference]: Without dead ends: 19095 [2021-01-06 19:35:11,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:35:11,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19095 states. [2021-01-06 19:35:13,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19095 to 13846. [2021-01-06 19:35:13,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13846 states. [2021-01-06 19:35:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13846 states to 13846 states and 16448 transitions. [2021-01-06 19:35:13,140 INFO L78 Accepts]: Start accepts. Automaton has 13846 states and 16448 transitions. Word has length 271 [2021-01-06 19:35:13,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:13,141 INFO L481 AbstractCegarLoop]: Abstraction has 13846 states and 16448 transitions. [2021-01-06 19:35:13,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 19:35:13,141 INFO L276 IsEmpty]: Start isEmpty. Operand 13846 states and 16448 transitions. [2021-01-06 19:35:13,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-01-06 19:35:13,150 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:13,150 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:35:13,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-01-06 19:35:13,151 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:13,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:13,151 INFO L82 PathProgramCache]: Analyzing trace with hash 421164424, now seen corresponding path program 1 times [2021-01-06 19:35:13,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:13,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515647196] [2021-01-06 19:35:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:13,307 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-01-06 19:35:13,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515647196] [2021-01-06 19:35:13,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:35:13,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 19:35:13,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348759129] [2021-01-06 19:35:13,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 19:35:13,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:13,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 19:35:13,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:35:13,310 INFO L87 Difference]: Start difference. First operand 13846 states and 16448 transitions. Second operand 7 states. [2021-01-06 19:35:16,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:16,602 INFO L93 Difference]: Finished difference Result 33255 states and 40251 transitions. [2021-01-06 19:35:16,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:35:16,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 271 [2021-01-06 19:35:16,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:16,619 INFO L225 Difference]: With dead ends: 33255 [2021-01-06 19:35:16,620 INFO L226 Difference]: Without dead ends: 20238 [2021-01-06 19:35:16,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:35:16,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20238 states. [2021-01-06 19:35:18,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20238 to 14971. [2021-01-06 19:35:18,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14971 states. [2021-01-06 19:35:18,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14971 states to 14971 states and 17807 transitions. [2021-01-06 19:35:18,515 INFO L78 Accepts]: Start accepts. Automaton has 14971 states and 17807 transitions. Word has length 271 [2021-01-06 19:35:18,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:18,515 INFO L481 AbstractCegarLoop]: Abstraction has 14971 states and 17807 transitions. [2021-01-06 19:35:18,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 19:35:18,515 INFO L276 IsEmpty]: Start isEmpty. Operand 14971 states and 17807 transitions. [2021-01-06 19:35:18,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-01-06 19:35:18,527 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:18,527 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:35:18,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-01-06 19:35:18,527 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:18,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:18,528 INFO L82 PathProgramCache]: Analyzing trace with hash -790225418, now seen corresponding path program 1 times [2021-01-06 19:35:18,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:18,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605496809] [2021-01-06 19:35:18,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:18,806 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 26 proven. 19 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:18,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605496809] [2021-01-06 19:35:18,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947967132] [2021-01-06 19:35:18,807 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 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 [2021-01-06 19:35:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:19,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 19:35:19,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:35:19,370 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:35:19,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:35:19,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2021-01-06 19:35:19,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389710979] [2021-01-06 19:35:19,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:35:19,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:19,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:35:19,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-01-06 19:35:19,372 INFO L87 Difference]: Start difference. First operand 14971 states and 17807 transitions. Second operand 4 states. [2021-01-06 19:35:21,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:21,178 INFO L93 Difference]: Finished difference Result 29297 states and 34892 transitions. [2021-01-06 19:35:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:35:21,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2021-01-06 19:35:21,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:21,192 INFO L225 Difference]: With dead ends: 29297 [2021-01-06 19:35:21,193 INFO L226 Difference]: Without dead ends: 14737 [2021-01-06 19:35:21,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:35:21,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14737 states. [2021-01-06 19:35:23,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14737 to 14737. [2021-01-06 19:35:23,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14737 states. [2021-01-06 19:35:23,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14737 states to 14737 states and 17436 transitions. [2021-01-06 19:35:23,051 INFO L78 Accepts]: Start accepts. Automaton has 14737 states and 17436 transitions. Word has length 271 [2021-01-06 19:35:23,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:23,051 INFO L481 AbstractCegarLoop]: Abstraction has 14737 states and 17436 transitions. [2021-01-06 19:35:23,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:35:23,052 INFO L276 IsEmpty]: Start isEmpty. Operand 14737 states and 17436 transitions. [2021-01-06 19:35:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-01-06 19:35:23,062 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:23,062 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:35:23,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-01-06 19:35:23,266 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:23,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:23,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1577278752, now seen corresponding path program 1 times [2021-01-06 19:35:23,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:23,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132724885] [2021-01-06 19:35:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:23,698 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 26 proven. 24 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:23,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132724885] [2021-01-06 19:35:23,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598796388] [2021-01-06 19:35:23,699 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 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 [2021-01-06 19:35:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:23,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 22 conjunts are in the unsatisfiable core [2021-01-06 19:35:23,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:35:24,318 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 19:35:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:24,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:35:24,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2021-01-06 19:35:24,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014868140] [2021-01-06 19:35:24,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 19:35:24,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:24,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 19:35:24,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-01-06 19:35:24,517 INFO L87 Difference]: Start difference. First operand 14737 states and 17436 transitions. Second operand 16 states. [2021-01-06 19:35:33,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:33,700 INFO L93 Difference]: Finished difference Result 56276 states and 68133 transitions. [2021-01-06 19:35:33,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-01-06 19:35:33,701 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 272 [2021-01-06 19:35:33,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:33,739 INFO L225 Difference]: With dead ends: 56276 [2021-01-06 19:35:33,739 INFO L226 Difference]: Without dead ends: 42356 [2021-01-06 19:35:33,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=871, Invalid=2911, Unknown=0, NotChecked=0, Total=3782 [2021-01-06 19:35:33,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42356 states. [2021-01-06 19:35:36,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42356 to 14767. [2021-01-06 19:35:36,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14767 states. [2021-01-06 19:35:36,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14767 states to 14767 states and 17476 transitions. [2021-01-06 19:35:36,173 INFO L78 Accepts]: Start accepts. Automaton has 14767 states and 17476 transitions. Word has length 272 [2021-01-06 19:35:36,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:36,173 INFO L481 AbstractCegarLoop]: Abstraction has 14767 states and 17476 transitions. [2021-01-06 19:35:36,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 19:35:36,174 INFO L276 IsEmpty]: Start isEmpty. Operand 14767 states and 17476 transitions. [2021-01-06 19:35:36,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-01-06 19:35:36,187 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:36,188 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:35:36,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-01-06 19:35:36,403 INFO L429 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:36,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:36,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1213812254, now seen corresponding path program 1 times [2021-01-06 19:35:36,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:36,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231983433] [2021-01-06 19:35:36,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:36,623 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-01-06 19:35:36,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231983433] [2021-01-06 19:35:36,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:35:36,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:35:36,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016760301] [2021-01-06 19:35:36,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:35:36,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:36,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:35:36,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:35:36,626 INFO L87 Difference]: Start difference. First operand 14767 states and 17476 transitions. Second operand 5 states. [2021-01-06 19:35:38,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:38,662 INFO L93 Difference]: Finished difference Result 28949 states and 34315 transitions. [2021-01-06 19:35:38,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:35:38,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 272 [2021-01-06 19:35:38,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:38,677 INFO L225 Difference]: With dead ends: 28949 [2021-01-06 19:35:38,677 INFO L226 Difference]: Without dead ends: 14777 [2021-01-06 19:35:38,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:35:38,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14777 states. [2021-01-06 19:35:40,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14777 to 14737. [2021-01-06 19:35:40,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14737 states. [2021-01-06 19:35:40,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14737 states to 14737 states and 17436 transitions. [2021-01-06 19:35:40,822 INFO L78 Accepts]: Start accepts. Automaton has 14737 states and 17436 transitions. Word has length 272 [2021-01-06 19:35:40,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:40,822 INFO L481 AbstractCegarLoop]: Abstraction has 14737 states and 17436 transitions. [2021-01-06 19:35:40,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:35:40,822 INFO L276 IsEmpty]: Start isEmpty. Operand 14737 states and 17436 transitions. [2021-01-06 19:35:40,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-01-06 19:35:40,840 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:40,840 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:35:40,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-01-06 19:35:40,841 INFO L429 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:40,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:40,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1078762552, now seen corresponding path program 1 times [2021-01-06 19:35:40,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:40,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630986341] [2021-01-06 19:35:40,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:41,139 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:41,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630986341] [2021-01-06 19:35:41,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110131541] [2021-01-06 19:35:41,140 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 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 [2021-01-06 19:35:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:41,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 17 conjunts are in the unsatisfiable core [2021-01-06 19:35:41,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:35:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-01-06 19:35:41,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:35:41,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 19 [2021-01-06 19:35:41,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882757124] [2021-01-06 19:35:41,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:35:41,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:41,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:35:41,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2021-01-06 19:35:41,927 INFO L87 Difference]: Start difference. First operand 14737 states and 17436 transitions. Second operand 8 states. [2021-01-06 19:35:48,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:48,371 INFO L93 Difference]: Finished difference Result 44469 states and 54007 transitions. [2021-01-06 19:35:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-06 19:35:48,372 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 273 [2021-01-06 19:35:48,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:48,403 INFO L225 Difference]: With dead ends: 44469 [2021-01-06 19:35:48,404 INFO L226 Difference]: Without dead ends: 30549 [2021-01-06 19:35:48,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=1458, Unknown=0, NotChecked=0, Total=1722 [2021-01-06 19:35:48,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30549 states. [2021-01-06 19:35:49,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30549 to 8233. [2021-01-06 19:35:49,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8233 states. [2021-01-06 19:35:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8233 states to 8233 states and 9753 transitions. [2021-01-06 19:35:49,843 INFO L78 Accepts]: Start accepts. Automaton has 8233 states and 9753 transitions. Word has length 273 [2021-01-06 19:35:49,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:49,844 INFO L481 AbstractCegarLoop]: Abstraction has 8233 states and 9753 transitions. [2021-01-06 19:35:49,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:35:49,844 INFO L276 IsEmpty]: Start isEmpty. Operand 8233 states and 9753 transitions. [2021-01-06 19:35:49,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-01-06 19:35:49,854 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:49,854 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:35:50,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:35:50,069 INFO L429 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:50,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:50,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1646357241, now seen corresponding path program 1 times [2021-01-06 19:35:50,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:50,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455298060] [2021-01-06 19:35:50,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 20 proven. 17 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:50,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455298060] [2021-01-06 19:35:50,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160985067] [2021-01-06 19:35:50,486 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 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 [2021-01-06 19:35:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:50,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 24 conjunts are in the unsatisfiable core [2021-01-06 19:35:50,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:35:51,140 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 19:35:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:51,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:35:51,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-01-06 19:35:51,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057130587] [2021-01-06 19:35:51,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 19:35:51,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:51,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 19:35:51,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2021-01-06 19:35:51,378 INFO L87 Difference]: Start difference. First operand 8233 states and 9753 transitions. Second operand 20 states. [2021-01-06 19:36:07,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:07,507 INFO L93 Difference]: Finished difference Result 55456 states and 68545 transitions. [2021-01-06 19:36:07,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-01-06 19:36:07,508 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 273 [2021-01-06 19:36:07,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:07,556 INFO L225 Difference]: With dead ends: 55456 [2021-01-06 19:36:07,556 INFO L226 Difference]: Without dead ends: 47923 [2021-01-06 19:36:07,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4184 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2656, Invalid=10226, Unknown=0, NotChecked=0, Total=12882 [2021-01-06 19:36:07,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47923 states. [2021-01-06 19:36:09,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47923 to 12427. [2021-01-06 19:36:09,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12427 states. [2021-01-06 19:36:09,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12427 states to 12427 states and 14895 transitions. [2021-01-06 19:36:09,924 INFO L78 Accepts]: Start accepts. Automaton has 12427 states and 14895 transitions. Word has length 273 [2021-01-06 19:36:09,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:09,924 INFO L481 AbstractCegarLoop]: Abstraction has 12427 states and 14895 transitions. [2021-01-06 19:36:09,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 19:36:09,924 INFO L276 IsEmpty]: Start isEmpty. Operand 12427 states and 14895 transitions. [2021-01-06 19:36:09,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-01-06 19:36:09,936 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:09,937 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:36:10,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:10,152 INFO L429 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:10,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:10,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1061585591, now seen corresponding path program 1 times [2021-01-06 19:36:10,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:10,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879267460] [2021-01-06 19:36:10,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:10,362 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-01-06 19:36:10,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879267460] [2021-01-06 19:36:10,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:10,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:10,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409407360] [2021-01-06 19:36:10,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:36:10,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:10,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:36:10,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:10,364 INFO L87 Difference]: Start difference. First operand 12427 states and 14895 transitions. Second operand 5 states. [2021-01-06 19:36:12,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:12,712 INFO L93 Difference]: Finished difference Result 24193 states and 29060 transitions. [2021-01-06 19:36:12,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:36:12,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2021-01-06 19:36:12,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:12,725 INFO L225 Difference]: With dead ends: 24193 [2021-01-06 19:36:12,725 INFO L226 Difference]: Without dead ends: 12427 [2021-01-06 19:36:12,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:12,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12427 states. [2021-01-06 19:36:14,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12427 to 12427. [2021-01-06 19:36:14,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12427 states. [2021-01-06 19:36:14,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12427 states to 12427 states and 14862 transitions. [2021-01-06 19:36:14,984 INFO L78 Accepts]: Start accepts. Automaton has 12427 states and 14862 transitions. Word has length 273 [2021-01-06 19:36:14,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:14,984 INFO L481 AbstractCegarLoop]: Abstraction has 12427 states and 14862 transitions. [2021-01-06 19:36:14,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:36:14,984 INFO L276 IsEmpty]: Start isEmpty. Operand 12427 states and 14862 transitions. [2021-01-06 19:36:14,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-01-06 19:36:14,993 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:14,993 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:36:14,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-01-06 19:36:14,993 INFO L429 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:14,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:14,994 INFO L82 PathProgramCache]: Analyzing trace with hash 194934183, now seen corresponding path program 1 times [2021-01-06 19:36:14,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:14,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508990117] [2021-01-06 19:36:14,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:15,321 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 26 proven. 24 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:15,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508990117] [2021-01-06 19:36:15,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620267873] [2021-01-06 19:36:15,322 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 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 [2021-01-06 19:36:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:15,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:36:15,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:36:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:16,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:36:16,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-01-06 19:36:16,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017446773] [2021-01-06 19:36:16,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-01-06 19:36:16,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:16,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-01-06 19:36:16,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-01-06 19:36:16,105 INFO L87 Difference]: Start difference. First operand 12427 states and 14862 transitions. Second operand 14 states. [2021-01-06 19:36:26,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:26,456 INFO L93 Difference]: Finished difference Result 52265 states and 63810 transitions. [2021-01-06 19:36:26,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-06 19:36:26,458 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 273 [2021-01-06 19:36:26,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:26,502 INFO L225 Difference]: With dead ends: 52265 [2021-01-06 19:36:26,502 INFO L226 Difference]: Without dead ends: 40767 [2021-01-06 19:36:26,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=432, Invalid=1290, Unknown=0, NotChecked=0, Total=1722 [2021-01-06 19:36:26,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40767 states. [2021-01-06 19:36:28,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40767 to 12460. [2021-01-06 19:36:28,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12460 states. [2021-01-06 19:36:28,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12460 states to 12460 states and 14906 transitions. [2021-01-06 19:36:28,891 INFO L78 Accepts]: Start accepts. Automaton has 12460 states and 14906 transitions. Word has length 273 [2021-01-06 19:36:28,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:28,892 INFO L481 AbstractCegarLoop]: Abstraction has 12460 states and 14906 transitions. [2021-01-06 19:36:28,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-01-06 19:36:28,892 INFO L276 IsEmpty]: Start isEmpty. Operand 12460 states and 14906 transitions. [2021-01-06 19:36:28,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-01-06 19:36:28,900 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:28,900 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:36:29,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:29,107 INFO L429 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:29,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:29,108 INFO L82 PathProgramCache]: Analyzing trace with hash 558400681, now seen corresponding path program 1 times [2021-01-06 19:36:29,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:29,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013535733] [2021-01-06 19:36:29,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-01-06 19:36:29,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013535733] [2021-01-06 19:36:29,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:29,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:29,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792664439] [2021-01-06 19:36:29,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:36:29,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:29,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:36:29,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:29,358 INFO L87 Difference]: Start difference. First operand 12460 states and 14906 transitions. Second operand 5 states. [2021-01-06 19:36:31,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:31,993 INFO L93 Difference]: Finished difference Result 24297 states and 29131 transitions. [2021-01-06 19:36:31,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:36:31,994 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2021-01-06 19:36:31,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:32,004 INFO L225 Difference]: With dead ends: 24297 [2021-01-06 19:36:32,005 INFO L226 Difference]: Without dead ends: 12471 [2021-01-06 19:36:32,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:32,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12471 states. [2021-01-06 19:36:34,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12471 to 12427. [2021-01-06 19:36:34,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12427 states. [2021-01-06 19:36:34,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12427 states to 12427 states and 14862 transitions. [2021-01-06 19:36:34,409 INFO L78 Accepts]: Start accepts. Automaton has 12427 states and 14862 transitions. Word has length 273 [2021-01-06 19:36:34,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:34,409 INFO L481 AbstractCegarLoop]: Abstraction has 12427 states and 14862 transitions. [2021-01-06 19:36:34,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:36:34,409 INFO L276 IsEmpty]: Start isEmpty. Operand 12427 states and 14862 transitions. [2021-01-06 19:36:34,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-01-06 19:36:34,418 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:34,418 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:36:34,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-01-06 19:36:34,418 INFO L429 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:34,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:34,419 INFO L82 PathProgramCache]: Analyzing trace with hash 612822885, now seen corresponding path program 1 times [2021-01-06 19:36:34,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:34,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98004055] [2021-01-06 19:36:34,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:34,568 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-01-06 19:36:34,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98004055] [2021-01-06 19:36:34,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:34,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:34,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021955670] [2021-01-06 19:36:34,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:36:34,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:34,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:36:34,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:36:34,570 INFO L87 Difference]: Start difference. First operand 12427 states and 14862 transitions. Second operand 4 states. [2021-01-06 19:36:36,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:36,037 INFO L93 Difference]: Finished difference Result 17810 states and 21294 transitions. [2021-01-06 19:36:36,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:36:36,038 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 273 [2021-01-06 19:36:36,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:36,043 INFO L225 Difference]: With dead ends: 17810 [2021-01-06 19:36:36,043 INFO L226 Difference]: Without dead ends: 5999 [2021-01-06 19:36:36,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:36,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2021-01-06 19:36:37,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 5999. [2021-01-06 19:36:37,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5999 states. [2021-01-06 19:36:37,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5999 states to 5999 states and 7097 transitions. [2021-01-06 19:36:37,262 INFO L78 Accepts]: Start accepts. Automaton has 5999 states and 7097 transitions. Word has length 273 [2021-01-06 19:36:37,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:37,262 INFO L481 AbstractCegarLoop]: Abstraction has 5999 states and 7097 transitions. [2021-01-06 19:36:37,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:36:37,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5999 states and 7097 transitions. [2021-01-06 19:36:37,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-01-06 19:36:37,267 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:37,267 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:36:37,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-01-06 19:36:37,268 INFO L429 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:37,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:37,268 INFO L82 PathProgramCache]: Analyzing trace with hash -553696416, now seen corresponding path program 1 times [2021-01-06 19:36:37,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:37,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386529047] [2021-01-06 19:36:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:37,899 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 20 proven. 17 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:37,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386529047] [2021-01-06 19:36:37,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589400332] [2021-01-06 19:36:37,900 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 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 [2021-01-06 19:36:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:38,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 19:36:38,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:36:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:38,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:36:38,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2021-01-06 19:36:38,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580848675] [2021-01-06 19:36:38,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-06 19:36:38,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:38,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-06 19:36:38,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2021-01-06 19:36:38,744 INFO L87 Difference]: Start difference. First operand 5999 states and 7097 transitions. Second operand 18 states. [2021-01-06 19:36:50,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:50,956 INFO L93 Difference]: Finished difference Result 33065 states and 40220 transitions. [2021-01-06 19:36:50,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-01-06 19:36:50,957 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 274 [2021-01-06 19:36:50,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:50,983 INFO L225 Difference]: With dead ends: 33065 [2021-01-06 19:36:50,983 INFO L226 Difference]: Without dead ends: 27694 [2021-01-06 19:36:50,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1566 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1320, Invalid=4380, Unknown=0, NotChecked=0, Total=5700 [2021-01-06 19:36:51,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27694 states. [2021-01-06 19:36:52,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27694 to 6041. [2021-01-06 19:36:52,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6041 states. [2021-01-06 19:36:52,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6041 states to 6041 states and 7153 transitions. [2021-01-06 19:36:52,399 INFO L78 Accepts]: Start accepts. Automaton has 6041 states and 7153 transitions. Word has length 274 [2021-01-06 19:36:52,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:52,400 INFO L481 AbstractCegarLoop]: Abstraction has 6041 states and 7153 transitions. [2021-01-06 19:36:52,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-01-06 19:36:52,400 INFO L276 IsEmpty]: Start isEmpty. Operand 6041 states and 7153 transitions. [2021-01-06 19:36:52,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-01-06 19:36:52,404 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:52,404 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:36:52,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-01-06 19:36:52,605 INFO L429 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:52,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:52,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1138468066, now seen corresponding path program 1 times [2021-01-06 19:36:52,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:52,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141666034] [2021-01-06 19:36:52,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:52,847 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-01-06 19:36:52,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141666034] [2021-01-06 19:36:52,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:52,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:52,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199450549] [2021-01-06 19:36:52,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:36:52,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:52,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:36:52,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:52,850 INFO L87 Difference]: Start difference. First operand 6041 states and 7153 transitions. Second operand 5 states. [2021-01-06 19:36:54,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:54,354 INFO L93 Difference]: Finished difference Result 11660 states and 13841 transitions. [2021-01-06 19:36:54,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:36:54,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2021-01-06 19:36:54,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:54,360 INFO L225 Difference]: With dead ends: 11660 [2021-01-06 19:36:54,361 INFO L226 Difference]: Without dead ends: 6055 [2021-01-06 19:36:54,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:54,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6055 states. [2021-01-06 19:36:55,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6055 to 5999. [2021-01-06 19:36:55,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5999 states. [2021-01-06 19:36:55,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5999 states to 5999 states and 7097 transitions. [2021-01-06 19:36:55,563 INFO L78 Accepts]: Start accepts. Automaton has 5999 states and 7097 transitions. Word has length 274 [2021-01-06 19:36:55,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:55,563 INFO L481 AbstractCegarLoop]: Abstraction has 5999 states and 7097 transitions. [2021-01-06 19:36:55,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:36:55,563 INFO L276 IsEmpty]: Start isEmpty. Operand 5999 states and 7097 transitions. [2021-01-06 19:36:55,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-01-06 19:36:55,567 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:55,568 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:36:55,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-01-06 19:36:55,568 INFO L429 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:55,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:55,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1098568990, now seen corresponding path program 1 times [2021-01-06 19:36:55,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:55,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295426523] [2021-01-06 19:36:55,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:55,727 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-01-06 19:36:55,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295426523] [2021-01-06 19:36:55,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:55,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:55,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144225791] [2021-01-06 19:36:55,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:36:55,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:55,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:36:55,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:36:55,730 INFO L87 Difference]: Start difference. First operand 5999 states and 7097 transitions. Second operand 4 states. [2021-01-06 19:36:56,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:56,899 INFO L93 Difference]: Finished difference Result 10028 states and 11869 transitions. [2021-01-06 19:36:56,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:36:56,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 274 [2021-01-06 19:36:56,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:56,904 INFO L225 Difference]: With dead ends: 10028 [2021-01-06 19:36:56,904 INFO L226 Difference]: Without dead ends: 4433 [2021-01-06 19:36:56,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:56,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2021-01-06 19:36:57,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 4433. [2021-01-06 19:36:57,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4433 states. [2021-01-06 19:36:57,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 5203 transitions. [2021-01-06 19:36:57,890 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 5203 transitions. Word has length 274 [2021-01-06 19:36:57,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:57,890 INFO L481 AbstractCegarLoop]: Abstraction has 4433 states and 5203 transitions. [2021-01-06 19:36:57,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:36:57,890 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 5203 transitions. [2021-01-06 19:36:57,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-01-06 19:36:57,893 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:57,893 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:36:57,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-01-06 19:36:57,894 INFO L429 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:57,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:57,894 INFO L82 PathProgramCache]: Analyzing trace with hash -4829992, now seen corresponding path program 1 times [2021-01-06 19:36:57,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:57,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566986341] [2021-01-06 19:36:57,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:58,040 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-01-06 19:36:58,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566986341] [2021-01-06 19:36:58,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:58,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 19:36:58,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074235015] [2021-01-06 19:36:58,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 19:36:58,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:58,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 19:36:58,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:36:58,043 INFO L87 Difference]: Start difference. First operand 4433 states and 5203 transitions. Second operand 7 states. [2021-01-06 19:37:00,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:00,373 INFO L93 Difference]: Finished difference Result 10190 states and 12180 transitions. [2021-01-06 19:37:00,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:37:00,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 275 [2021-01-06 19:37:00,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:00,379 INFO L225 Difference]: With dead ends: 10190 [2021-01-06 19:37:00,379 INFO L226 Difference]: Without dead ends: 6300 [2021-01-06 19:37:00,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:37:00,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6300 states. [2021-01-06 19:37:01,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6300 to 4413. [2021-01-06 19:37:01,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4413 states. [2021-01-06 19:37:01,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4413 states to 4413 states and 5173 transitions. [2021-01-06 19:37:01,375 INFO L78 Accepts]: Start accepts. Automaton has 4413 states and 5173 transitions. Word has length 275 [2021-01-06 19:37:01,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:01,376 INFO L481 AbstractCegarLoop]: Abstraction has 4413 states and 5173 transitions. [2021-01-06 19:37:01,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 19:37:01,376 INFO L276 IsEmpty]: Start isEmpty. Operand 4413 states and 5173 transitions. [2021-01-06 19:37:01,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-01-06 19:37:01,379 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:01,380 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:37:01,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-01-06 19:37:01,380 INFO L429 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:01,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:01,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1071879036, now seen corresponding path program 1 times [2021-01-06 19:37:01,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:01,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137314973] [2021-01-06 19:37:01,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:01,597 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:37:01,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137314973] [2021-01-06 19:37:01,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:37:01,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 19:37:01,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605827006] [2021-01-06 19:37:01,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:37:01,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:01,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:37:01,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:37:01,599 INFO L87 Difference]: Start difference. First operand 4413 states and 5173 transitions. Second operand 8 states. [2021-01-06 19:37:05,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:05,951 INFO L93 Difference]: Finished difference Result 13391 states and 16133 transitions. [2021-01-06 19:37:05,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-06 19:37:05,952 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 279 [2021-01-06 19:37:05,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:05,962 INFO L225 Difference]: With dead ends: 13391 [2021-01-06 19:37:05,962 INFO L226 Difference]: Without dead ends: 9521 [2021-01-06 19:37:05,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2021-01-06 19:37:05,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9521 states. [2021-01-06 19:37:07,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9521 to 4383. [2021-01-06 19:37:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4383 states. [2021-01-06 19:37:07,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4383 states to 4383 states and 5133 transitions. [2021-01-06 19:37:07,051 INFO L78 Accepts]: Start accepts. Automaton has 4383 states and 5133 transitions. Word has length 279 [2021-01-06 19:37:07,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:07,052 INFO L481 AbstractCegarLoop]: Abstraction has 4383 states and 5133 transitions. [2021-01-06 19:37:07,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:37:07,052 INFO L276 IsEmpty]: Start isEmpty. Operand 4383 states and 5133 transitions. [2021-01-06 19:37:07,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-01-06 19:37:07,055 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:07,056 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:37:07,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-01-06 19:37:07,056 INFO L429 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:07,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:07,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1126244118, now seen corresponding path program 1 times [2021-01-06 19:37:07,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:07,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226729931] [2021-01-06 19:37:07,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 35 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:37:07,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226729931] [2021-01-06 19:37:07,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376173967] [2021-01-06 19:37:07,377 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:37:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:07,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 24 conjunts are in the unsatisfiable core [2021-01-06 19:37:07,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:37:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 21 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:37:08,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:37:08,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-01-06 19:37:08,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662358935] [2021-01-06 19:37:08,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-01-06 19:37:08,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:08,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-01-06 19:37:08,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-01-06 19:37:08,352 INFO L87 Difference]: Start difference. First operand 4383 states and 5133 transitions. Second operand 21 states. [2021-01-06 19:37:24,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:24,302 INFO L93 Difference]: Finished difference Result 42675 states and 50388 transitions. [2021-01-06 19:37:24,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-01-06 19:37:24,303 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 280 [2021-01-06 19:37:24,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:24,340 INFO L225 Difference]: With dead ends: 42675 [2021-01-06 19:37:24,341 INFO L226 Difference]: Without dead ends: 38835 [2021-01-06 19:37:24,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3417 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1884, Invalid=8216, Unknown=0, NotChecked=0, Total=10100 [2021-01-06 19:37:24,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38835 states. [2021-01-06 19:37:25,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38835 to 5658. [2021-01-06 19:37:25,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5658 states. [2021-01-06 19:37:25,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5658 states to 5658 states and 6629 transitions. [2021-01-06 19:37:25,680 INFO L78 Accepts]: Start accepts. Automaton has 5658 states and 6629 transitions. Word has length 280 [2021-01-06 19:37:25,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:25,680 INFO L481 AbstractCegarLoop]: Abstraction has 5658 states and 6629 transitions. [2021-01-06 19:37:25,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2021-01-06 19:37:25,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5658 states and 6629 transitions. [2021-01-06 19:37:25,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-01-06 19:37:25,685 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:25,685 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:37:25,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-01-06 19:37:25,899 INFO L429 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:25,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:25,900 INFO L82 PathProgramCache]: Analyzing trace with hash 178192152, now seen corresponding path program 1 times [2021-01-06 19:37:25,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:25,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516422310] [2021-01-06 19:37:25,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:26,181 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:37:26,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516422310] [2021-01-06 19:37:26,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:37:26,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:37:26,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073859706] [2021-01-06 19:37:26,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:37:26,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:26,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:37:26,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:37:26,184 INFO L87 Difference]: Start difference. First operand 5658 states and 6629 transitions. Second operand 5 states. [2021-01-06 19:37:27,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:27,427 INFO L93 Difference]: Finished difference Result 11110 states and 13041 transitions. [2021-01-06 19:37:27,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:37:27,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2021-01-06 19:37:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:27,434 INFO L225 Difference]: With dead ends: 11110 [2021-01-06 19:37:27,434 INFO L226 Difference]: Without dead ends: 5770 [2021-01-06 19:37:27,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:37:27,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5770 states. [2021-01-06 19:37:28,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5770 to 5742. [2021-01-06 19:37:28,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5742 states. [2021-01-06 19:37:28,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 6706 transitions. [2021-01-06 19:37:28,640 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 6706 transitions. Word has length 280 [2021-01-06 19:37:28,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:28,641 INFO L481 AbstractCegarLoop]: Abstraction has 5742 states and 6706 transitions. [2021-01-06 19:37:28,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:37:28,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 6706 transitions. [2021-01-06 19:37:28,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-01-06 19:37:28,646 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:28,646 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:37:28,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-01-06 19:37:28,646 INFO L429 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:28,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:28,647 INFO L82 PathProgramCache]: Analyzing trace with hash 2048289681, now seen corresponding path program 1 times [2021-01-06 19:37:28,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:28,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489559754] [2021-01-06 19:37:28,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:28,875 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-01-06 19:37:28,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489559754] [2021-01-06 19:37:28,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:37:28,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 19:37:28,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270684859] [2021-01-06 19:37:28,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:37:28,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:28,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:37:28,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:37:28,877 INFO L87 Difference]: Start difference. First operand 5742 states and 6706 transitions. Second operand 8 states. [2021-01-06 19:37:33,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:33,195 INFO L93 Difference]: Finished difference Result 16788 states and 19896 transitions. [2021-01-06 19:37:33,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 19:37:33,196 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 281 [2021-01-06 19:37:33,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:33,205 INFO L225 Difference]: With dead ends: 16788 [2021-01-06 19:37:33,205 INFO L226 Difference]: Without dead ends: 11662 [2021-01-06 19:37:33,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2021-01-06 19:37:33,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11662 states. [2021-01-06 19:37:34,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11662 to 5742. [2021-01-06 19:37:34,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5742 states. [2021-01-06 19:37:34,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 6694 transitions. [2021-01-06 19:37:34,481 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 6694 transitions. Word has length 281 [2021-01-06 19:37:34,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:34,482 INFO L481 AbstractCegarLoop]: Abstraction has 5742 states and 6694 transitions. [2021-01-06 19:37:34,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:37:34,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 6694 transitions. [2021-01-06 19:37:34,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-01-06 19:37:34,488 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:34,488 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:37:34,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-01-06 19:37:34,488 INFO L429 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:34,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:34,489 INFO L82 PathProgramCache]: Analyzing trace with hash 969963025, now seen corresponding path program 1 times [2021-01-06 19:37:34,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:34,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519962964] [2021-01-06 19:37:34,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:34,830 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 32 proven. 28 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:37:34,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519962964] [2021-01-06 19:37:34,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430639515] [2021-01-06 19:37:34,831 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:37:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:35,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:37:35,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:37:35,595 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 32 proven. 28 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:37:35,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:37:35,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 9 [2021-01-06 19:37:35,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780041292] [2021-01-06 19:37:35,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 19:37:35,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:35,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 19:37:35,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:37:35,598 INFO L87 Difference]: Start difference. First operand 5742 states and 6694 transitions. Second operand 9 states. [2021-01-06 19:37:38,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:38,831 INFO L93 Difference]: Finished difference Result 13466 states and 15934 transitions. [2021-01-06 19:37:38,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-06 19:37:38,832 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 281 [2021-01-06 19:37:38,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:38,844 INFO L225 Difference]: With dead ends: 13466 [2021-01-06 19:37:38,844 INFO L226 Difference]: Without dead ends: 8340 [2021-01-06 19:37:38,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 280 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=355, Invalid=1205, Unknown=0, NotChecked=0, Total=1560 [2021-01-06 19:37:38,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8340 states. [2021-01-06 19:37:39,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8340 to 4218. [2021-01-06 19:37:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4218 states. [2021-01-06 19:37:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4218 states to 4218 states and 4920 transitions. [2021-01-06 19:37:39,994 INFO L78 Accepts]: Start accepts. Automaton has 4218 states and 4920 transitions. Word has length 281 [2021-01-06 19:37:39,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:39,994 INFO L481 AbstractCegarLoop]: Abstraction has 4218 states and 4920 transitions. [2021-01-06 19:37:39,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 19:37:39,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4218 states and 4920 transitions. [2021-01-06 19:37:39,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-01-06 19:37:39,998 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:39,998 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:37:40,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:37:40,200 INFO L429 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:40,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:40,200 INFO L82 PathProgramCache]: Analyzing trace with hash -760913264, now seen corresponding path program 1 times [2021-01-06 19:37:40,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:40,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991407519] [2021-01-06 19:37:40,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:40,548 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 35 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:37:40,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991407519] [2021-01-06 19:37:40,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729566249] [2021-01-06 19:37:40,549 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:37:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:40,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 34 conjunts are in the unsatisfiable core [2021-01-06 19:37:40,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:37:41,225 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 19:37:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 21 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:37:41,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:37:41,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 25 [2021-01-06 19:37:41,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159297824] [2021-01-06 19:37:41,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-06 19:37:41,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:41,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-06 19:37:41,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2021-01-06 19:37:41,645 INFO L87 Difference]: Start difference. First operand 4218 states and 4920 transitions. Second operand 26 states.