/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/systemc/token_ring.08.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 09:33:00,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 09:33:00,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 09:33:00,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 09:33:00,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 09:33:00,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 09:33:00,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 09:33:00,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 09:33:00,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 09:33:00,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 09:33:00,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 09:33:00,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 09:33:00,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 09:33:00,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 09:33:00,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 09:33:00,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 09:33:00,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 09:33:00,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 09:33:00,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 09:33:00,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 09:33:00,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 09:33:00,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 09:33:00,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 09:33:00,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 09:33:00,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 09:33:00,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 09:33:00,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 09:33:00,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 09:33:00,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 09:33:00,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 09:33:00,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 09:33:00,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 09:33:00,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 09:33:00,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 09:33:00,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 09:33:00,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 09:33:00,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 09:33:00,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 09:33:00,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 09:33:00,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 09:33:00,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 09:33:00,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 09:33:00,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 09:33:00,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 09:33:00,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 09:33:00,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 09:33:00,564 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 09:33:00,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 09:33:00,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 09:33:00,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 09:33:00,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 09:33:00,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 09:33:00,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 09:33:00,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 09:33:00,567 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 09:33:00,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 09:33:00,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 09:33:00,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 09:33:00,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 09:33:00,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:33:00,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 09:33:00,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 09:33:00,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 09:33:00,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 09:33:00,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 09:33:00,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 09:33:00,572 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 09:33:00,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 09:33:00,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 09:33:00,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 09:33:00,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 09:33:00,974 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 09:33:00,974 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 09:33:00,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.08.cil-1.c [2020-12-23 09:33:01,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7cfe3d240/f2e22161b68f417099c7d89389e30a5a/FLAG9663869c6 [2020-12-23 09:33:01,814 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 09:33:01,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.08.cil-1.c [2020-12-23 09:33:01,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7cfe3d240/f2e22161b68f417099c7d89389e30a5a/FLAG9663869c6 [2020-12-23 09:33:02,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7cfe3d240/f2e22161b68f417099c7d89389e30a5a [2020-12-23 09:33:02,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 09:33:02,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 09:33:02,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 09:33:02,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 09:33:02,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 09:33:02,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:33:02" (1/1) ... [2020-12-23 09:33:02,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf838c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02, skipping insertion in model container [2020-12-23 09:33:02,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:33:02" (1/1) ... [2020-12-23 09:33:02,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 09:33:02,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 09:33:02,361 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/systemc/token_ring.08.cil-1.c[366,379] left hand side expression in assignment: lhs: VariableLHS[~token~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~local~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__retres1~0,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~0,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~1,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~1,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~2,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~2,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~3,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~3,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~4,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~4,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~5,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~5,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~6,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~6,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~7,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~7,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~8,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~8,] left hand side expression in assignment: lhs: VariableLHS[~m_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_1~0,] left hand side expression in assignment: lhs: VariableLHS[~m_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_2~0,] left hand side expression in assignment: lhs: VariableLHS[~t1_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_3~0,] left hand side expression in assignment: lhs: VariableLHS[~t2_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_4~0,] left hand side expression in assignment: lhs: VariableLHS[~t3_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_5~0,] left hand side expression in assignment: lhs: VariableLHS[~t4_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_6~0,] left hand side expression in assignment: lhs: VariableLHS[~t5_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_7~0,] left hand side expression in assignment: lhs: VariableLHS[~t6_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_8~0,] left hand side expression in assignment: lhs: VariableLHS[~t7_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_9~0,] left hand side expression in assignment: lhs: VariableLHS[~t8_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~M_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T1_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T2_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T3_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T4_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T5_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T6_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T7_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T8_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~M_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T1_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T2_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T3_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T4_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T5_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T6_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T7_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T8_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~m_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~t1_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~t2_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~t3_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~t4_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~t5_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~t6_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~0,] left hand side expression in assignment: lhs: VariableLHS[~t7_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~0,] left hand side expression in assignment: lhs: VariableLHS[~t8_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~M_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~M_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T1_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T2_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T3_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T4_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T5_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T6_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T7_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T8_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__retres2~0,] left hand side expression in assignment: lhs: VariableLHS[~__retres2~0,] left hand side expression in assignment: lhs: VariableLHS[~kernel_st~0,] left hand side expression in assignment: lhs: VariableLHS[~kernel_st~0,] left hand side expression in assignment: lhs: VariableLHS[~kernel_st~0,] left hand side expression in assignment: lhs: VariableLHS[~kernel_st~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~kernel_st~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~10,] [2020-12-23 09:33:02,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:33:02,562 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 09:33:02,577 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/systemc/token_ring.08.cil-1.c[366,379] left hand side expression in assignment: lhs: VariableLHS[~token~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~local~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__retres1~0,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~0,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~1,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~1,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~2,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~2,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~3,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~3,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~4,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~4,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~5,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~5,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~6,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~6,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~7,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~7,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~8,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~8,] left hand side expression in assignment: lhs: VariableLHS[~m_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_1~0,] left hand side expression in assignment: lhs: VariableLHS[~m_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_2~0,] left hand side expression in assignment: lhs: VariableLHS[~t1_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_3~0,] left hand side expression in assignment: lhs: VariableLHS[~t2_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_4~0,] left hand side expression in assignment: lhs: VariableLHS[~t3_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_5~0,] left hand side expression in assignment: lhs: VariableLHS[~t4_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_6~0,] left hand side expression in assignment: lhs: VariableLHS[~t5_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_7~0,] left hand side expression in assignment: lhs: VariableLHS[~t6_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_8~0,] left hand side expression in assignment: lhs: VariableLHS[~t7_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_9~0,] left hand side expression in assignment: lhs: VariableLHS[~t8_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~M_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T1_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T2_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T3_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T4_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T5_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T6_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T7_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T8_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~M_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T1_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T2_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T3_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T4_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T5_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T6_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T7_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T8_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~m_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~t1_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~t2_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~t3_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~t4_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~t5_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~t6_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~0,] left hand side expression in assignment: lhs: VariableLHS[~t7_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~0,] left hand side expression in assignment: lhs: VariableLHS[~t8_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~M_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~M_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T1_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T2_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T3_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T4_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T5_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T6_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T7_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T8_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__retres2~0,] left hand side expression in assignment: lhs: VariableLHS[~__retres2~0,] left hand side expression in assignment: lhs: VariableLHS[~kernel_st~0,] left hand side expression in assignment: lhs: VariableLHS[~kernel_st~0,] left hand side expression in assignment: lhs: VariableLHS[~kernel_st~0,] left hand side expression in assignment: lhs: VariableLHS[~kernel_st~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~kernel_st~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~10,] [2020-12-23 09:33:02,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:33:02,709 INFO L208 MainTranslator]: Completed translation [2020-12-23 09:33:02,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02 WrapperNode [2020-12-23 09:33:02,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 09:33:02,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 09:33:02,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 09:33:02,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 09:33:02,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02" (1/1) ... [2020-12-23 09:33:02,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02" (1/1) ... [2020-12-23 09:33:02,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 09:33:02,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 09:33:02,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 09:33:02,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 09:33:02,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02" (1/1) ... [2020-12-23 09:33:02,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02" (1/1) ... [2020-12-23 09:33:02,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02" (1/1) ... [2020-12-23 09:33:02,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02" (1/1) ... [2020-12-23 09:33:02,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02" (1/1) ... [2020-12-23 09:33:02,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02" (1/1) ... [2020-12-23 09:33:02,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02" (1/1) ... [2020-12-23 09:33:03,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 09:33:03,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 09:33:03,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 09:33:03,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 09:33:03,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:33:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 09:33:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 09:33:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 09:33:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 09:33:05,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 09:33:05,256 INFO L299 CfgBuilder]: Removed 325 assume(true) statements. [2020-12-23 09:33:05,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:33:05 BoogieIcfgContainer [2020-12-23 09:33:05,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 09:33:05,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 09:33:05,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 09:33:05,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 09:33:05,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:33:02" (1/3) ... [2020-12-23 09:33:05,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@994217c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:33:05, skipping insertion in model container [2020-12-23 09:33:05,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:33:02" (2/3) ... [2020-12-23 09:33:05,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@994217c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:33:05, skipping insertion in model container [2020-12-23 09:33:05,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:33:05" (3/3) ... [2020-12-23 09:33:05,268 INFO L111 eAbstractionObserver]: Analyzing ICFG token_ring.08.cil-1.c [2020-12-23 09:33:05,275 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 09:33:05,280 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 09:33:05,299 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 09:33:05,347 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 09:33:05,347 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 09:33:05,347 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 09:33:05,348 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 09:33:05,348 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 09:33:05,348 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 09:33:05,348 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 09:33:05,348 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 09:33:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states. [2020-12-23 09:33:05,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:05,394 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:05,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:05,396 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:05,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:05,402 INFO L82 PathProgramCache]: Analyzing trace with hash -245504410, now seen corresponding path program 1 times [2020-12-23 09:33:05,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:05,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160486554] [2020-12-23 09:33:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:05,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:05,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160486554] [2020-12-23 09:33:05,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:05,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:33:05,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914875693] [2020-12-23 09:33:05,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:33:05,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:05,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:33:05,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:33:05,736 INFO L87 Difference]: Start difference. First operand 974 states. Second operand 3 states. [2020-12-23 09:33:05,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:05,898 INFO L93 Difference]: Finished difference Result 1943 states and 2965 transitions. [2020-12-23 09:33:05,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:33:05,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-12-23 09:33:05,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:05,947 INFO L225 Difference]: With dead ends: 1943 [2020-12-23 09:33:05,948 INFO L226 Difference]: Without dead ends: 970 [2020-12-23 09:33:05,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:33:05,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-12-23 09:33:06,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-12-23 09:33:06,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-12-23 09:33:06,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1458 transitions. [2020-12-23 09:33:06,099 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1458 transitions. Word has length 116 [2020-12-23 09:33:06,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:33:06,099 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 1458 transitions. [2020-12-23 09:33:06,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:33:06,100 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1458 transitions. [2020-12-23 09:33:06,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:06,109 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:06,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:06,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 09:33:06,111 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:06,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:06,114 INFO L82 PathProgramCache]: Analyzing trace with hash -716860760, now seen corresponding path program 1 times [2020-12-23 09:33:06,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:06,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449259217] [2020-12-23 09:33:06,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:06,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:06,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449259217] [2020-12-23 09:33:06,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:06,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:33:06,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004477902] [2020-12-23 09:33:06,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:33:06,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:06,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:33:06,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:33:06,317 INFO L87 Difference]: Start difference. First operand 970 states and 1458 transitions. Second operand 4 states. [2020-12-23 09:33:06,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:06,505 INFO L93 Difference]: Finished difference Result 2722 states and 4078 transitions. [2020-12-23 09:33:06,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:33:06,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2020-12-23 09:33:06,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:06,517 INFO L225 Difference]: With dead ends: 2722 [2020-12-23 09:33:06,517 INFO L226 Difference]: Without dead ends: 1765 [2020-12-23 09:33:06,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:33:06,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2020-12-23 09:33:06,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1763. [2020-12-23 09:33:06,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2020-12-23 09:33:06,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2636 transitions. [2020-12-23 09:33:06,599 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2636 transitions. Word has length 116 [2020-12-23 09:33:06,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:33:06,600 INFO L481 AbstractCegarLoop]: Abstraction has 1763 states and 2636 transitions. [2020-12-23 09:33:06,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:33:06,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2636 transitions. [2020-12-23 09:33:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:06,608 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:06,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:06,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 09:33:06,609 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:06,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:06,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1544712490, now seen corresponding path program 1 times [2020-12-23 09:33:06,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:06,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370023913] [2020-12-23 09:33:06,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:06,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:06,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370023913] [2020-12-23 09:33:06,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:06,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:33:06,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906141343] [2020-12-23 09:33:06,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:33:06,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:06,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:33:06,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:33:06,765 INFO L87 Difference]: Start difference. First operand 1763 states and 2636 transitions. Second operand 4 states. [2020-12-23 09:33:07,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:07,038 INFO L93 Difference]: Finished difference Result 5096 states and 7606 transitions. [2020-12-23 09:33:07,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:33:07,039 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2020-12-23 09:33:07,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:07,058 INFO L225 Difference]: With dead ends: 5096 [2020-12-23 09:33:07,059 INFO L226 Difference]: Without dead ends: 3348 [2020-12-23 09:33:07,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:33:07,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3348 states. [2020-12-23 09:33:07,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3348 to 3346. [2020-12-23 09:33:07,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3346 states. [2020-12-23 09:33:07,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 4987 transitions. [2020-12-23 09:33:07,219 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 4987 transitions. Word has length 116 [2020-12-23 09:33:07,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:33:07,225 INFO L481 AbstractCegarLoop]: Abstraction has 3346 states and 4987 transitions. [2020-12-23 09:33:07,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:33:07,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 4987 transitions. [2020-12-23 09:33:07,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:07,227 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:07,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:07,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 09:33:07,228 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:07,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:07,229 INFO L82 PathProgramCache]: Analyzing trace with hash -321996184, now seen corresponding path program 1 times [2020-12-23 09:33:07,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:07,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959263905] [2020-12-23 09:33:07,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:07,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:07,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959263905] [2020-12-23 09:33:07,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:07,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:33:07,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332331647] [2020-12-23 09:33:07,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:33:07,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:07,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:33:07,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:33:07,343 INFO L87 Difference]: Start difference. First operand 3346 states and 4987 transitions. Second operand 4 states. [2020-12-23 09:33:07,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:07,722 INFO L93 Difference]: Finished difference Result 9839 states and 14649 transitions. [2020-12-23 09:33:07,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:33:07,723 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2020-12-23 09:33:07,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:07,755 INFO L225 Difference]: With dead ends: 9839 [2020-12-23 09:33:07,756 INFO L226 Difference]: Without dead ends: 6509 [2020-12-23 09:33:07,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:33:07,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6509 states. [2020-12-23 09:33:08,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6509 to 6507. [2020-12-23 09:33:08,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6507 states. [2020-12-23 09:33:08,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 9676 transitions. [2020-12-23 09:33:08,069 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 9676 transitions. Word has length 116 [2020-12-23 09:33:08,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:33:08,069 INFO L481 AbstractCegarLoop]: Abstraction has 6507 states and 9676 transitions. [2020-12-23 09:33:08,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:33:08,070 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 9676 transitions. [2020-12-23 09:33:08,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:08,072 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:08,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:08,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 09:33:08,073 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:08,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:08,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1629138582, now seen corresponding path program 1 times [2020-12-23 09:33:08,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:08,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614626735] [2020-12-23 09:33:08,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:08,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614626735] [2020-12-23 09:33:08,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:08,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:33:08,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044938933] [2020-12-23 09:33:08,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:33:08,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:08,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:33:08,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:33:08,182 INFO L87 Difference]: Start difference. First operand 6507 states and 9676 transitions. Second operand 3 states. [2020-12-23 09:33:08,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:08,477 INFO L93 Difference]: Finished difference Result 12997 states and 19326 transitions. [2020-12-23 09:33:08,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:33:08,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-12-23 09:33:08,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:08,510 INFO L225 Difference]: With dead ends: 12997 [2020-12-23 09:33:08,511 INFO L226 Difference]: Without dead ends: 6507 [2020-12-23 09:33:08,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:33:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6507 states. [2020-12-23 09:33:08,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6507 to 6507. [2020-12-23 09:33:08,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6507 states. [2020-12-23 09:33:08,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 9650 transitions. [2020-12-23 09:33:08,849 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 9650 transitions. Word has length 116 [2020-12-23 09:33:08,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:33:08,849 INFO L481 AbstractCegarLoop]: Abstraction has 6507 states and 9650 transitions. [2020-12-23 09:33:08,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:33:08,849 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 9650 transitions. [2020-12-23 09:33:08,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:08,852 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:08,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:08,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 09:33:08,852 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:08,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:08,853 INFO L82 PathProgramCache]: Analyzing trace with hash -241114906, now seen corresponding path program 1 times [2020-12-23 09:33:08,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:08,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184687265] [2020-12-23 09:33:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:08,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:08,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184687265] [2020-12-23 09:33:08,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:08,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:33:08,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043887801] [2020-12-23 09:33:08,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:33:08,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:08,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:33:08,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:33:08,905 INFO L87 Difference]: Start difference. First operand 6507 states and 9650 transitions. Second operand 3 states. [2020-12-23 09:33:09,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:09,156 INFO L93 Difference]: Finished difference Result 12996 states and 19273 transitions. [2020-12-23 09:33:09,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:33:09,156 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-12-23 09:33:09,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:09,189 INFO L225 Difference]: With dead ends: 12996 [2020-12-23 09:33:09,189 INFO L226 Difference]: Without dead ends: 6507 [2020-12-23 09:33:09,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:33:09,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6507 states. [2020-12-23 09:33:09,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6507 to 6507. [2020-12-23 09:33:09,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6507 states. [2020-12-23 09:33:09,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 9624 transitions. [2020-12-23 09:33:09,534 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 9624 transitions. Word has length 116 [2020-12-23 09:33:09,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:33:09,534 INFO L481 AbstractCegarLoop]: Abstraction has 6507 states and 9624 transitions. [2020-12-23 09:33:09,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:33:09,535 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 9624 transitions. [2020-12-23 09:33:09,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:09,537 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:09,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:09,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 09:33:09,538 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:09,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:09,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1581813270, now seen corresponding path program 1 times [2020-12-23 09:33:09,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:09,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206998539] [2020-12-23 09:33:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:09,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:09,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206998539] [2020-12-23 09:33:09,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:09,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:33:09,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424386353] [2020-12-23 09:33:09,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:33:09,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:09,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:33:09,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:33:09,609 INFO L87 Difference]: Start difference. First operand 6507 states and 9624 transitions. Second operand 4 states. [2020-12-23 09:33:10,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:10,201 INFO L93 Difference]: Finished difference Result 19296 states and 28530 transitions. [2020-12-23 09:33:10,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:33:10,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2020-12-23 09:33:10,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:10,238 INFO L225 Difference]: With dead ends: 19296 [2020-12-23 09:33:10,239 INFO L226 Difference]: Without dead ends: 12808 [2020-12-23 09:33:10,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:33:10,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12808 states. [2020-12-23 09:33:10,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12808 to 12806. [2020-12-23 09:33:10,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12806 states. [2020-12-23 09:33:10,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12806 states to 12806 states and 18915 transitions. [2020-12-23 09:33:10,835 INFO L78 Accepts]: Start accepts. Automaton has 12806 states and 18915 transitions. Word has length 116 [2020-12-23 09:33:10,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:33:10,835 INFO L481 AbstractCegarLoop]: Abstraction has 12806 states and 18915 transitions. [2020-12-23 09:33:10,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:33:10,835 INFO L276 IsEmpty]: Start isEmpty. Operand 12806 states and 18915 transitions. [2020-12-23 09:33:10,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:10,839 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:10,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:10,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 09:33:10,840 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:10,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:10,841 INFO L82 PathProgramCache]: Analyzing trace with hash 806750760, now seen corresponding path program 1 times [2020-12-23 09:33:10,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:10,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203495124] [2020-12-23 09:33:10,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:10,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:10,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203495124] [2020-12-23 09:33:10,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:10,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:33:10,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039531839] [2020-12-23 09:33:10,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:33:10,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:10,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:33:10,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:33:10,910 INFO L87 Difference]: Start difference. First operand 12806 states and 18915 transitions. Second operand 4 states. [2020-12-23 09:33:11,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:11,887 INFO L93 Difference]: Finished difference Result 38171 states and 56365 transitions. [2020-12-23 09:33:11,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:33:11,887 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2020-12-23 09:33:11,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:11,958 INFO L225 Difference]: With dead ends: 38171 [2020-12-23 09:33:11,959 INFO L226 Difference]: Without dead ends: 25385 [2020-12-23 09:33:11,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:33:12,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25385 states. [2020-12-23 09:33:13,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25385 to 25383. [2020-12-23 09:33:13,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25383 states. [2020-12-23 09:33:13,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25383 states to 25383 states and 37444 transitions. [2020-12-23 09:33:13,484 INFO L78 Accepts]: Start accepts. Automaton has 25383 states and 37444 transitions. Word has length 116 [2020-12-23 09:33:13,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:33:13,484 INFO L481 AbstractCegarLoop]: Abstraction has 25383 states and 37444 transitions. [2020-12-23 09:33:13,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:33:13,485 INFO L276 IsEmpty]: Start isEmpty. Operand 25383 states and 37444 transitions. [2020-12-23 09:33:13,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:13,491 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:13,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:13,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 09:33:13,492 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:13,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:13,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1887145430, now seen corresponding path program 1 times [2020-12-23 09:33:13,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:13,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958450949] [2020-12-23 09:33:13,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:13,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:13,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958450949] [2020-12-23 09:33:13,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:13,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:33:13,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674390251] [2020-12-23 09:33:13,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:33:13,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:13,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:33:13,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:33:13,566 INFO L87 Difference]: Start difference. First operand 25383 states and 37444 transitions. Second operand 4 states. [2020-12-23 09:33:15,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:15,490 INFO L93 Difference]: Finished difference Result 73820 states and 108942 transitions. [2020-12-23 09:33:15,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:33:15,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2020-12-23 09:33:15,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:15,602 INFO L225 Difference]: With dead ends: 73820 [2020-12-23 09:33:15,603 INFO L226 Difference]: Without dead ends: 48459 [2020-12-23 09:33:15,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:33:15,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48459 states. [2020-12-23 09:33:17,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48459 to 48425. [2020-12-23 09:33:17,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48425 states. [2020-12-23 09:33:18,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48425 states to 48425 states and 71431 transitions. [2020-12-23 09:33:18,245 INFO L78 Accepts]: Start accepts. Automaton has 48425 states and 71431 transitions. Word has length 116 [2020-12-23 09:33:18,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:33:18,246 INFO L481 AbstractCegarLoop]: Abstraction has 48425 states and 71431 transitions. [2020-12-23 09:33:18,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:33:18,246 INFO L276 IsEmpty]: Start isEmpty. Operand 48425 states and 71431 transitions. [2020-12-23 09:33:18,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:18,257 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:18,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:18,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 09:33:18,257 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:18,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:18,259 INFO L82 PathProgramCache]: Analyzing trace with hash -535760212, now seen corresponding path program 1 times [2020-12-23 09:33:18,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:18,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027786620] [2020-12-23 09:33:18,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:18,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:18,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027786620] [2020-12-23 09:33:18,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:18,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:33:18,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306694774] [2020-12-23 09:33:18,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:33:18,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:18,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:33:18,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:33:18,329 INFO L87 Difference]: Start difference. First operand 48425 states and 71431 transitions. Second operand 4 states. [2020-12-23 09:33:21,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:21,984 INFO L93 Difference]: Finished difference Result 140862 states and 207889 transitions. [2020-12-23 09:33:21,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:33:21,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2020-12-23 09:33:21,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:22,194 INFO L225 Difference]: With dead ends: 140862 [2020-12-23 09:33:22,194 INFO L226 Difference]: Without dead ends: 92460 [2020-12-23 09:33:22,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:33:22,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92460 states. [2020-12-23 09:33:25,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92460 to 92138. [2020-12-23 09:33:25,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92138 states. [2020-12-23 09:33:25,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92138 states to 92138 states and 135848 transitions. [2020-12-23 09:33:25,581 INFO L78 Accepts]: Start accepts. Automaton has 92138 states and 135848 transitions. Word has length 116 [2020-12-23 09:33:25,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:33:25,581 INFO L481 AbstractCegarLoop]: Abstraction has 92138 states and 135848 transitions. [2020-12-23 09:33:25,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:33:25,581 INFO L276 IsEmpty]: Start isEmpty. Operand 92138 states and 135848 transitions. [2020-12-23 09:33:25,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:25,599 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:25,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:25,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 09:33:25,599 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:25,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:25,600 INFO L82 PathProgramCache]: Analyzing trace with hash 2140232170, now seen corresponding path program 1 times [2020-12-23 09:33:25,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:25,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549272670] [2020-12-23 09:33:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:25,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:25,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549272670] [2020-12-23 09:33:25,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:25,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:33:25,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592197957] [2020-12-23 09:33:25,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:33:25,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:25,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:33:25,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:33:25,645 INFO L87 Difference]: Start difference. First operand 92138 states and 135848 transitions. Second operand 3 states. [2020-12-23 09:33:29,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:29,138 INFO L93 Difference]: Finished difference Result 184252 states and 271662 transitions. [2020-12-23 09:33:29,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:33:29,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-12-23 09:33:29,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:29,440 INFO L225 Difference]: With dead ends: 184252 [2020-12-23 09:33:29,441 INFO L226 Difference]: Without dead ends: 92138 [2020-12-23 09:33:29,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:33:29,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92138 states. [2020-12-23 09:33:32,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92138 to 92138. [2020-12-23 09:33:32,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92138 states. [2020-12-23 09:33:32,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92138 states to 92138 states and 134436 transitions. [2020-12-23 09:33:32,820 INFO L78 Accepts]: Start accepts. Automaton has 92138 states and 134436 transitions. Word has length 116 [2020-12-23 09:33:32,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:33:32,820 INFO L481 AbstractCegarLoop]: Abstraction has 92138 states and 134436 transitions. [2020-12-23 09:33:32,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:33:32,820 INFO L276 IsEmpty]: Start isEmpty. Operand 92138 states and 134436 transitions. [2020-12-23 09:33:32,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:32,839 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:32,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:32,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 09:33:32,840 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:32,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:32,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1256723180, now seen corresponding path program 1 times [2020-12-23 09:33:32,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:32,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611478242] [2020-12-23 09:33:32,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:32,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:32,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611478242] [2020-12-23 09:33:32,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:32,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:33:32,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378348916] [2020-12-23 09:33:32,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:33:32,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:32,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:33:32,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:33:32,888 INFO L87 Difference]: Start difference. First operand 92138 states and 134436 transitions. Second operand 4 states. [2020-12-23 09:33:38,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:38,223 INFO L93 Difference]: Finished difference Result 267711 states and 390890 transitions. [2020-12-23 09:33:38,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:33:38,223 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2020-12-23 09:33:38,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:38,609 INFO L225 Difference]: With dead ends: 267711 [2020-12-23 09:33:38,609 INFO L226 Difference]: Without dead ends: 175598 [2020-12-23 09:33:38,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:33:38,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175598 states. [2020-12-23 09:33:44,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175598 to 175468. [2020-12-23 09:33:44,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175468 states. [2020-12-23 09:33:45,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175468 states to 175468 states and 256102 transitions. [2020-12-23 09:33:45,157 INFO L78 Accepts]: Start accepts. Automaton has 175468 states and 256102 transitions. Word has length 116 [2020-12-23 09:33:45,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:33:45,158 INFO L481 AbstractCegarLoop]: Abstraction has 175468 states and 256102 transitions. [2020-12-23 09:33:45,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:33:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 175468 states and 256102 transitions. [2020-12-23 09:33:45,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:33:45,224 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:33:45,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:33:45,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 09:33:45,225 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:33:45,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:33:45,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1228222890, now seen corresponding path program 1 times [2020-12-23 09:33:45,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:33:45,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159862028] [2020-12-23 09:33:45,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:33:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:33:45,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:33:45,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159862028] [2020-12-23 09:33:45,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:33:45,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:33:45,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442588941] [2020-12-23 09:33:45,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:33:45,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:33:45,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:33:45,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:33:45,278 INFO L87 Difference]: Start difference. First operand 175468 states and 256102 transitions. Second operand 4 states. [2020-12-23 09:33:55,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:33:55,010 INFO L93 Difference]: Finished difference Result 509377 states and 743980 transitions. [2020-12-23 09:33:55,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:33:55,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2020-12-23 09:33:55,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:33:55,620 INFO L225 Difference]: With dead ends: 509377 [2020-12-23 09:33:55,620 INFO L226 Difference]: Without dead ends: 333935 [2020-12-23 09:33:55,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:33:56,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333935 states. [2020-12-23 09:34:07,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333935 to 333677. [2020-12-23 09:34:07,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333677 states. [2020-12-23 09:34:08,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333677 states to 333677 states and 487143 transitions. [2020-12-23 09:34:08,174 INFO L78 Accepts]: Start accepts. Automaton has 333677 states and 487143 transitions. Word has length 116 [2020-12-23 09:34:08,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:08,174 INFO L481 AbstractCegarLoop]: Abstraction has 333677 states and 487143 transitions. [2020-12-23 09:34:08,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:08,174 INFO L276 IsEmpty]: Start isEmpty. Operand 333677 states and 487143 transitions. [2020-12-23 09:34:08,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 09:34:08,236 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:08,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:34:08,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 09:34:08,237 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:08,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:08,237 INFO L82 PathProgramCache]: Analyzing trace with hash -712359124, now seen corresponding path program 1 times [2020-12-23 09:34:08,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:08,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185509989] [2020-12-23 09:34:08,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:08,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:08,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185509989] [2020-12-23 09:34:08,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:08,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:08,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803408407] [2020-12-23 09:34:08,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:08,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:08,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:08,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:08,292 INFO L87 Difference]: Start difference. First operand 333677 states and 487143 transitions. Second operand 4 states. [2020-12-23 09:34:27,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:27,902 INFO L93 Difference]: Finished difference Result 967362 states and 1413293 transitions. [2020-12-23 09:34:27,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:27,902 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2020-12-23 09:34:27,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:29,123 INFO L225 Difference]: With dead ends: 967362 [2020-12-23 09:34:29,123 INFO L226 Difference]: Without dead ends: 633712 [2020-12-23 09:34:29,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:30,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633712 states.