/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/transmitter.11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 09:37:30,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 09:37:30,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 09:37:30,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 09:37:30,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 09:37:30,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 09:37:30,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 09:37:30,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 09:37:30,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 09:37:30,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 09:37:30,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 09:37:30,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 09:37:30,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 09:37:30,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 09:37:30,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 09:37:30,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 09:37:30,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 09:37:30,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 09:37:30,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 09:37:30,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 09:37:30,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 09:37:30,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 09:37:30,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 09:37:30,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 09:37:30,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 09:37:30,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 09:37:30,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 09:37:30,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 09:37:30,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 09:37:30,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 09:37:30,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 09:37:30,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 09:37:30,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 09:37:30,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 09:37:30,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 09:37:30,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 09:37:30,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 09:37:30,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 09:37:30,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 09:37:30,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 09:37:30,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 09:37:30,476 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 09:37:30,525 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 09:37:30,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 09:37:30,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 09:37:30,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 09:37:30,527 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 09:37:30,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 09:37:30,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 09:37:30,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 09:37:30,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 09:37:30,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 09:37:30,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 09:37:30,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 09:37:30,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 09:37:30,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 09:37:30,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 09:37:30,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 09:37:30,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 09:37:30,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:37:30,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 09:37:30,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 09:37:30,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 09:37:30,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 09:37:30,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 09:37:30,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 09:37:30,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 09:37:30,534 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 09:37:30,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 09:37:30,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 09:37:30,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 09:37:30,934 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 09:37:30,935 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 09:37:30,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.11.cil.c [2020-12-23 09:37:31,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5832ec5fd/0c7d9b6c318f407c9cb74d55cd97e122/FLAG81f5172be [2020-12-23 09:37:31,808 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 09:37:31,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.11.cil.c [2020-12-23 09:37:31,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5832ec5fd/0c7d9b6c318f407c9cb74d55cd97e122/FLAG81f5172be [2020-12-23 09:37:32,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5832ec5fd/0c7d9b6c318f407c9cb74d55cd97e122 [2020-12-23 09:37:32,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 09:37:32,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 09:37:32,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 09:37:32,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 09:37:32,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 09:37:32,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:37:32" (1/1) ... [2020-12-23 09:37:32,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43215770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32, skipping insertion in model container [2020-12-23 09:37:32,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:37:32" (1/1) ... [2020-12-23 09:37:32,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 09:37:32,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 09:37:32,372 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/transmitter.11.cil.c[401,414] 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_9~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_9~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t9_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t9_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_10~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_10~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t10_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t10_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_11~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_11~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t11_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t11_st~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[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~10,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~10,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~11,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~11,] 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[~t9_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t9_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t10_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t10_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t11_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t11_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] 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[~tmp_ndt_10~0,] left hand side expression in assignment: lhs: VariableLHS[~t9_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_11~0,] left hand side expression in assignment: lhs: VariableLHS[~t10_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_12~0,] left hand side expression in assignment: lhs: VariableLHS[~t11_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[~T9_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T10_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T11_E~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[~E_9~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_10~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_11~0,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[~T9_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T10_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T11_E~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[~E_9~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_10~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_11~0,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[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~t9_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~t10_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___10~0,] left hand side expression in assignment: lhs: VariableLHS[~t11_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[~T9_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T10_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T11_E~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[~E_9~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_10~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_11~0,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[~t9_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t10_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t11_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[~__retres1~13,] [2020-12-23 09:37:32,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:37:32,607 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 09:37:32,620 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/transmitter.11.cil.c[401,414] 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_9~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_9~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t9_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t9_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_10~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_10~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t10_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t10_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_11~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_11~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t11_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t11_st~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[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~9,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~10,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~10,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~11,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~11,] 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[~t9_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t9_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t10_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t10_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t11_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t11_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] 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[~tmp_ndt_10~0,] left hand side expression in assignment: lhs: VariableLHS[~t9_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_11~0,] left hand side expression in assignment: lhs: VariableLHS[~t10_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_12~0,] left hand side expression in assignment: lhs: VariableLHS[~t11_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[~T9_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T10_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T11_E~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[~E_9~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_10~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_11~0,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[~T9_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T10_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T11_E~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[~E_9~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_10~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_11~0,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[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~t9_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~t10_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___10~0,] left hand side expression in assignment: lhs: VariableLHS[~t11_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[~T9_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T10_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T11_E~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[~E_9~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_10~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_11~0,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[~t9_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t10_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t11_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[~__retres1~13,] [2020-12-23 09:37:32,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:37:32,742 INFO L208 MainTranslator]: Completed translation [2020-12-23 09:37:32,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32 WrapperNode [2020-12-23 09:37:32,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 09:37:32,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 09:37:32,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 09:37:32,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 09:37:32,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32" (1/1) ... [2020-12-23 09:37:32,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32" (1/1) ... [2020-12-23 09:37:32,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 09:37:32,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 09:37:32,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 09:37:32,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 09:37:32,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32" (1/1) ... [2020-12-23 09:37:32,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32" (1/1) ... [2020-12-23 09:37:32,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32" (1/1) ... [2020-12-23 09:37:32,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32" (1/1) ... [2020-12-23 09:37:33,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32" (1/1) ... [2020-12-23 09:37:33,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32" (1/1) ... [2020-12-23 09:37:33,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32" (1/1) ... [2020-12-23 09:37:33,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 09:37:33,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 09:37:33,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 09:37:33,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 09:37:33,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32" (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 09:37:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 09:37:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 09:37:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 09:37:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 09:37:35,703 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 09:37:35,703 INFO L299 CfgBuilder]: Removed 463 assume(true) statements. [2020-12-23 09:37:35,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:37:35 BoogieIcfgContainer [2020-12-23 09:37:35,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 09:37:35,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 09:37:35,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 09:37:35,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 09:37:35,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:37:32" (1/3) ... [2020-12-23 09:37:35,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47da3453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:37:35, skipping insertion in model container [2020-12-23 09:37:35,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:32" (2/3) ... [2020-12-23 09:37:35,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47da3453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:37:35, skipping insertion in model container [2020-12-23 09:37:35,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:37:35" (3/3) ... [2020-12-23 09:37:35,718 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.11.cil.c [2020-12-23 09:37:35,725 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 09:37:35,731 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 09:37:35,750 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 09:37:35,785 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 09:37:35,786 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 09:37:35,786 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 09:37:35,786 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 09:37:35,786 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 09:37:35,786 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 09:37:35,786 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 09:37:35,786 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 09:37:35,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states. [2020-12-23 09:37:35,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:35,855 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:35,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:35,857 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:35,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:35,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1802935973, now seen corresponding path program 1 times [2020-12-23 09:37:35,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:35,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520435993] [2020-12-23 09:37:35,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:36,361 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 09:37:36,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520435993] [2020-12-23 09:37:36,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:36,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:36,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030302934] [2020-12-23 09:37:36,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:37:36,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:36,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:37:36,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:37:36,396 INFO L87 Difference]: Start difference. First operand 1452 states. Second operand 3 states. [2020-12-23 09:37:36,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:36,572 INFO L93 Difference]: Finished difference Result 2899 states and 4393 transitions. [2020-12-23 09:37:36,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:37:36,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 09:37:36,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:36,607 INFO L225 Difference]: With dead ends: 2899 [2020-12-23 09:37:36,607 INFO L226 Difference]: Without dead ends: 1448 [2020-12-23 09:37:36,620 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 09:37:36,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2020-12-23 09:37:36,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1448. [2020-12-23 09:37:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states. [2020-12-23 09:37:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2164 transitions. [2020-12-23 09:37:36,785 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2164 transitions. Word has length 157 [2020-12-23 09:37:36,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:36,785 INFO L481 AbstractCegarLoop]: Abstraction has 1448 states and 2164 transitions. [2020-12-23 09:37:36,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:37:36,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2164 transitions. [2020-12-23 09:37:36,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:36,796 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:36,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:36,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 09:37:36,798 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:36,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:36,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1086839645, now seen corresponding path program 1 times [2020-12-23 09:37:36,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:36,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43263227] [2020-12-23 09:37:36,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:36,969 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 09:37:36,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43263227] [2020-12-23 09:37:36,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:36,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:36,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843256603] [2020-12-23 09:37:36,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:37:36,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:36,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:37:36,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:37:36,977 INFO L87 Difference]: Start difference. First operand 1448 states and 2164 transitions. Second operand 3 states. [2020-12-23 09:37:37,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:37,051 INFO L93 Difference]: Finished difference Result 2883 states and 4306 transitions. [2020-12-23 09:37:37,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:37:37,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 09:37:37,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:37,060 INFO L225 Difference]: With dead ends: 2883 [2020-12-23 09:37:37,061 INFO L226 Difference]: Without dead ends: 1448 [2020-12-23 09:37:37,065 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 09:37:37,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2020-12-23 09:37:37,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1448. [2020-12-23 09:37:37,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states. [2020-12-23 09:37:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2163 transitions. [2020-12-23 09:37:37,125 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2163 transitions. Word has length 157 [2020-12-23 09:37:37,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:37,128 INFO L481 AbstractCegarLoop]: Abstraction has 1448 states and 2163 transitions. [2020-12-23 09:37:37,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:37:37,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2163 transitions. [2020-12-23 09:37:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:37,131 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:37,132 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:37,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 09:37:37,132 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:37,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:37,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1311148193, now seen corresponding path program 1 times [2020-12-23 09:37:37,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:37,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598510245] [2020-12-23 09:37:37,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:37,257 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 09:37:37,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598510245] [2020-12-23 09:37:37,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:37,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:37:37,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759833237] [2020-12-23 09:37:37,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:37:37,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:37,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:37:37,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:37:37,261 INFO L87 Difference]: Start difference. First operand 1448 states and 2163 transitions. Second operand 3 states. [2020-12-23 09:37:37,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:37,539 INFO L93 Difference]: Finished difference Result 4098 states and 6103 transitions. [2020-12-23 09:37:37,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:37:37,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 09:37:37,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:37,561 INFO L225 Difference]: With dead ends: 4098 [2020-12-23 09:37:37,562 INFO L226 Difference]: Without dead ends: 2666 [2020-12-23 09:37:37,564 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 09:37:37,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states. [2020-12-23 09:37:37,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 2664. [2020-12-23 09:37:37,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:37,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3949 transitions. [2020-12-23 09:37:37,717 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3949 transitions. Word has length 157 [2020-12-23 09:37:37,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:37,722 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3949 transitions. [2020-12-23 09:37:37,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:37:37,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3949 transitions. [2020-12-23 09:37:37,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:37,724 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:37,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:37,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 09:37:37,725 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:37,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:37,725 INFO L82 PathProgramCache]: Analyzing trace with hash 417630305, now seen corresponding path program 1 times [2020-12-23 09:37:37,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:37,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905284334] [2020-12-23 09:37:37,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:37,858 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 09:37:37,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905284334] [2020-12-23 09:37:37,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:37,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:37,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885207572] [2020-12-23 09:37:37,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:37,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:37,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:37,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:37,863 INFO L87 Difference]: Start difference. First operand 2664 states and 3949 transitions. Second operand 4 states. [2020-12-23 09:37:38,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:38,208 INFO L93 Difference]: Finished difference Result 6528 states and 9658 transitions. [2020-12-23 09:37:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:38,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:38,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:38,231 INFO L225 Difference]: With dead ends: 6528 [2020-12-23 09:37:38,231 INFO L226 Difference]: Without dead ends: 3881 [2020-12-23 09:37:38,241 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 09:37:38,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3881 states. [2020-12-23 09:37:38,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3881 to 2664. [2020-12-23 09:37:38,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3946 transitions. [2020-12-23 09:37:38,412 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3946 transitions. Word has length 157 [2020-12-23 09:37:38,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:38,413 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3946 transitions. [2020-12-23 09:37:38,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:38,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3946 transitions. [2020-12-23 09:37:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:38,416 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:38,416 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:38,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 09:37:38,417 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:38,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:38,418 INFO L82 PathProgramCache]: Analyzing trace with hash 261649763, now seen corresponding path program 1 times [2020-12-23 09:37:38,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:38,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107426337] [2020-12-23 09:37:38,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:38,582 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 09:37:38,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107426337] [2020-12-23 09:37:38,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:38,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:38,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157029637] [2020-12-23 09:37:38,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:38,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:38,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:38,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:38,587 INFO L87 Difference]: Start difference. First operand 2664 states and 3946 transitions. Second operand 4 states. [2020-12-23 09:37:38,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:38,891 INFO L93 Difference]: Finished difference Result 6526 states and 9648 transitions. [2020-12-23 09:37:38,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:38,893 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:38,913 INFO L225 Difference]: With dead ends: 6526 [2020-12-23 09:37:38,913 INFO L226 Difference]: Without dead ends: 3880 [2020-12-23 09:37:38,919 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 09:37:38,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3880 states. [2020-12-23 09:37:39,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3880 to 2664. [2020-12-23 09:37:39,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:39,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3943 transitions. [2020-12-23 09:37:39,089 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3943 transitions. Word has length 157 [2020-12-23 09:37:39,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:39,090 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3943 transitions. [2020-12-23 09:37:39,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:39,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3943 transitions. [2020-12-23 09:37:39,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:39,092 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:39,092 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:39,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 09:37:39,093 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:39,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:39,093 INFO L82 PathProgramCache]: Analyzing trace with hash 672260129, now seen corresponding path program 1 times [2020-12-23 09:37:39,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:39,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259742669] [2020-12-23 09:37:39,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:39,189 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 09:37:39,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259742669] [2020-12-23 09:37:39,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:39,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:39,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098805387] [2020-12-23 09:37:39,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:39,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:39,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:39,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:39,192 INFO L87 Difference]: Start difference. First operand 2664 states and 3943 transitions. Second operand 4 states. [2020-12-23 09:37:39,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:39,512 INFO L93 Difference]: Finished difference Result 6524 states and 9638 transitions. [2020-12-23 09:37:39,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:39,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:39,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:39,531 INFO L225 Difference]: With dead ends: 6524 [2020-12-23 09:37:39,532 INFO L226 Difference]: Without dead ends: 3879 [2020-12-23 09:37:39,537 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 09:37:39,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3879 states. [2020-12-23 09:37:39,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3879 to 2664. [2020-12-23 09:37:39,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3940 transitions. [2020-12-23 09:37:39,712 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3940 transitions. Word has length 157 [2020-12-23 09:37:39,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:39,712 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3940 transitions. [2020-12-23 09:37:39,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:39,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3940 transitions. [2020-12-23 09:37:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:39,715 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:39,715 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:39,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 09:37:39,715 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:39,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:39,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1115609693, now seen corresponding path program 1 times [2020-12-23 09:37:39,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:39,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515084689] [2020-12-23 09:37:39,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:39,785 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 09:37:39,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515084689] [2020-12-23 09:37:39,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:39,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:37:39,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51584667] [2020-12-23 09:37:39,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:37:39,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:39,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:37:39,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:37:39,788 INFO L87 Difference]: Start difference. First operand 2664 states and 3940 transitions. Second operand 3 states. [2020-12-23 09:37:39,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:39,939 INFO L93 Difference]: Finished difference Result 5308 states and 7849 transitions. [2020-12-23 09:37:39,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:37:39,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 09:37:39,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:39,953 INFO L225 Difference]: With dead ends: 5308 [2020-12-23 09:37:39,954 INFO L226 Difference]: Without dead ends: 2664 [2020-12-23 09:37:39,959 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 09:37:39,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2020-12-23 09:37:40,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2020-12-23 09:37:40,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3932 transitions. [2020-12-23 09:37:40,099 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3932 transitions. Word has length 157 [2020-12-23 09:37:40,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:40,100 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3932 transitions. [2020-12-23 09:37:40,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:37:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3932 transitions. [2020-12-23 09:37:40,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:40,102 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:40,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:40,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 09:37:40,103 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:40,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:40,103 INFO L82 PathProgramCache]: Analyzing trace with hash 146081123, now seen corresponding path program 1 times [2020-12-23 09:37:40,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:40,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408609827] [2020-12-23 09:37:40,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:40,220 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 09:37:40,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408609827] [2020-12-23 09:37:40,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:40,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:40,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992191949] [2020-12-23 09:37:40,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:40,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:40,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:40,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:40,224 INFO L87 Difference]: Start difference. First operand 2664 states and 3932 transitions. Second operand 4 states. [2020-12-23 09:37:40,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:40,539 INFO L93 Difference]: Finished difference Result 6518 states and 9603 transitions. [2020-12-23 09:37:40,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:40,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:40,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:40,557 INFO L225 Difference]: With dead ends: 6518 [2020-12-23 09:37:40,558 INFO L226 Difference]: Without dead ends: 3876 [2020-12-23 09:37:40,563 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 09:37:40,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3876 states. [2020-12-23 09:37:40,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3876 to 2664. [2020-12-23 09:37:40,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:40,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3929 transitions. [2020-12-23 09:37:40,718 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3929 transitions. Word has length 157 [2020-12-23 09:37:40,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:40,719 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3929 transitions. [2020-12-23 09:37:40,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:40,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3929 transitions. [2020-12-23 09:37:40,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:40,721 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:40,721 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:40,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 09:37:40,722 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:40,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:40,722 INFO L82 PathProgramCache]: Analyzing trace with hash 563969825, now seen corresponding path program 1 times [2020-12-23 09:37:40,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:40,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469781058] [2020-12-23 09:37:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:40,829 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 09:37:40,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469781058] [2020-12-23 09:37:40,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:40,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:37:40,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326505892] [2020-12-23 09:37:40,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:37:40,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:40,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:37:40,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:37:40,838 INFO L87 Difference]: Start difference. First operand 2664 states and 3929 transitions. Second operand 3 states. [2020-12-23 09:37:41,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:41,045 INFO L93 Difference]: Finished difference Result 5305 states and 7823 transitions. [2020-12-23 09:37:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:37:41,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 09:37:41,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:41,077 INFO L225 Difference]: With dead ends: 5305 [2020-12-23 09:37:41,077 INFO L226 Difference]: Without dead ends: 2664 [2020-12-23 09:37:41,087 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 09:37:41,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2020-12-23 09:37:41,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2020-12-23 09:37:41,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:41,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3921 transitions. [2020-12-23 09:37:41,271 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3921 transitions. Word has length 157 [2020-12-23 09:37:41,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:41,273 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3921 transitions. [2020-12-23 09:37:41,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:37:41,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3921 transitions. [2020-12-23 09:37:41,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:41,276 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:41,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:41,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 09:37:41,277 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:41,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:41,278 INFO L82 PathProgramCache]: Analyzing trace with hash 591116129, now seen corresponding path program 1 times [2020-12-23 09:37:41,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:41,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251534761] [2020-12-23 09:37:41,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:41,355 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 09:37:41,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251534761] [2020-12-23 09:37:41,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:41,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:37:41,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867711185] [2020-12-23 09:37:41,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:37:41,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:41,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:37:41,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:37:41,358 INFO L87 Difference]: Start difference. First operand 2664 states and 3921 transitions. Second operand 3 states. [2020-12-23 09:37:41,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:41,519 INFO L93 Difference]: Finished difference Result 5304 states and 7806 transitions. [2020-12-23 09:37:41,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:37:41,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 09:37:41,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:41,527 INFO L225 Difference]: With dead ends: 5304 [2020-12-23 09:37:41,527 INFO L226 Difference]: Without dead ends: 2664 [2020-12-23 09:37:41,532 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 09:37:41,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2020-12-23 09:37:41,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2020-12-23 09:37:41,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:41,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3913 transitions. [2020-12-23 09:37:41,711 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3913 transitions. Word has length 157 [2020-12-23 09:37:41,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:41,712 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3913 transitions. [2020-12-23 09:37:41,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:37:41,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3913 transitions. [2020-12-23 09:37:41,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:41,714 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:41,714 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:41,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 09:37:41,715 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:41,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:41,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1423275809, now seen corresponding path program 1 times [2020-12-23 09:37:41,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:41,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023709433] [2020-12-23 09:37:41,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:41,784 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 09:37:41,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023709433] [2020-12-23 09:37:41,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:41,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:37:41,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991647511] [2020-12-23 09:37:41,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:37:41,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:41,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:37:41,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:37:41,789 INFO L87 Difference]: Start difference. First operand 2664 states and 3913 transitions. Second operand 3 states. [2020-12-23 09:37:41,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:41,939 INFO L93 Difference]: Finished difference Result 5303 states and 7789 transitions. [2020-12-23 09:37:41,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:37:41,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 09:37:41,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:41,946 INFO L225 Difference]: With dead ends: 5303 [2020-12-23 09:37:41,947 INFO L226 Difference]: Without dead ends: 2664 [2020-12-23 09:37:41,952 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 09:37:41,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2020-12-23 09:37:42,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2020-12-23 09:37:42,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:42,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3905 transitions. [2020-12-23 09:37:42,110 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3905 transitions. Word has length 157 [2020-12-23 09:37:42,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:42,110 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3905 transitions. [2020-12-23 09:37:42,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:37:42,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3905 transitions. [2020-12-23 09:37:42,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:42,113 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:42,113 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:42,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 09:37:42,114 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:42,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:42,115 INFO L82 PathProgramCache]: Analyzing trace with hash 757383009, now seen corresponding path program 1 times [2020-12-23 09:37:42,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:42,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676273049] [2020-12-23 09:37:42,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:42,181 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 09:37:42,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676273049] [2020-12-23 09:37:42,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:42,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:37:42,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865240081] [2020-12-23 09:37:42,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:37:42,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:42,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:37:42,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:37:42,184 INFO L87 Difference]: Start difference. First operand 2664 states and 3905 transitions. Second operand 3 states. [2020-12-23 09:37:42,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:42,374 INFO L93 Difference]: Finished difference Result 5302 states and 7772 transitions. [2020-12-23 09:37:42,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:37:42,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 09:37:42,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:42,381 INFO L225 Difference]: With dead ends: 5302 [2020-12-23 09:37:42,381 INFO L226 Difference]: Without dead ends: 2664 [2020-12-23 09:37:42,385 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 09:37:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2020-12-23 09:37:42,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2020-12-23 09:37:42,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:42,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3897 transitions. [2020-12-23 09:37:42,542 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3897 transitions. Word has length 157 [2020-12-23 09:37:42,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:42,542 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3897 transitions. [2020-12-23 09:37:42,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:37:42,543 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3897 transitions. [2020-12-23 09:37:42,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:42,545 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:42,545 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:42,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 09:37:42,546 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:42,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:42,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1705733921, now seen corresponding path program 1 times [2020-12-23 09:37:42,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:42,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538121861] [2020-12-23 09:37:42,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:42,625 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 09:37:42,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538121861] [2020-12-23 09:37:42,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:42,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:42,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656656661] [2020-12-23 09:37:42,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:42,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:42,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:42,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:42,628 INFO L87 Difference]: Start difference. First operand 2664 states and 3897 transitions. Second operand 4 states. [2020-12-23 09:37:42,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:42,947 INFO L93 Difference]: Finished difference Result 6508 states and 9509 transitions. [2020-12-23 09:37:42,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:42,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:42,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:42,957 INFO L225 Difference]: With dead ends: 6508 [2020-12-23 09:37:42,957 INFO L226 Difference]: Without dead ends: 3871 [2020-12-23 09:37:42,969 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 09:37:42,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3871 states. [2020-12-23 09:37:43,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3871 to 2664. [2020-12-23 09:37:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:43,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3894 transitions. [2020-12-23 09:37:43,157 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3894 transitions. Word has length 157 [2020-12-23 09:37:43,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:43,158 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3894 transitions. [2020-12-23 09:37:43,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:43,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3894 transitions. [2020-12-23 09:37:43,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:43,160 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:43,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:43,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 09:37:43,161 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:43,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:43,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1160861347, now seen corresponding path program 1 times [2020-12-23 09:37:43,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:43,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096666943] [2020-12-23 09:37:43,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:43,224 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 09:37:43,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096666943] [2020-12-23 09:37:43,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:43,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:43,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885700933] [2020-12-23 09:37:43,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:43,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:43,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:43,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:43,226 INFO L87 Difference]: Start difference. First operand 2664 states and 3894 transitions. Second operand 4 states. [2020-12-23 09:37:43,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:43,687 INFO L93 Difference]: Finished difference Result 6422 states and 9380 transitions. [2020-12-23 09:37:43,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:43,687 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:43,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:43,695 INFO L225 Difference]: With dead ends: 6422 [2020-12-23 09:37:43,696 INFO L226 Difference]: Without dead ends: 3786 [2020-12-23 09:37:43,702 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 09:37:43,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2020-12-23 09:37:43,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 2664. [2020-12-23 09:37:43,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:43,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3891 transitions. [2020-12-23 09:37:43,925 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3891 transitions. Word has length 157 [2020-12-23 09:37:43,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:43,926 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3891 transitions. [2020-12-23 09:37:43,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:43,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3891 transitions. [2020-12-23 09:37:43,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:43,928 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:43,929 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:43,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 09:37:43,929 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:43,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:43,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1836021473, now seen corresponding path program 1 times [2020-12-23 09:37:43,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:43,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788523877] [2020-12-23 09:37:43,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:44,004 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 09:37:44,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788523877] [2020-12-23 09:37:44,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:44,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:44,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384689467] [2020-12-23 09:37:44,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:44,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:44,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:44,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:44,007 INFO L87 Difference]: Start difference. First operand 2664 states and 3891 transitions. Second operand 4 states. [2020-12-23 09:37:44,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:44,497 INFO L93 Difference]: Finished difference Result 6418 states and 9366 transitions. [2020-12-23 09:37:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:44,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:44,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:44,506 INFO L225 Difference]: With dead ends: 6418 [2020-12-23 09:37:44,507 INFO L226 Difference]: Without dead ends: 3784 [2020-12-23 09:37:44,512 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 09:37:44,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2020-12-23 09:37:44,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 2664. [2020-12-23 09:37:44,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:44,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3888 transitions. [2020-12-23 09:37:44,680 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3888 transitions. Word has length 157 [2020-12-23 09:37:44,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:44,680 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3888 transitions. [2020-12-23 09:37:44,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:44,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3888 transitions. [2020-12-23 09:37:44,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:44,682 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:44,683 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:44,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 09:37:44,683 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:44,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:44,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1251249823, now seen corresponding path program 1 times [2020-12-23 09:37:44,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:44,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391593966] [2020-12-23 09:37:44,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:44,740 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 09:37:44,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391593966] [2020-12-23 09:37:44,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:44,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:37:44,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816834107] [2020-12-23 09:37:44,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:37:44,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:44,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:37:44,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:37:44,743 INFO L87 Difference]: Start difference. First operand 2664 states and 3888 transitions. Second operand 3 states. [2020-12-23 09:37:44,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:44,979 INFO L93 Difference]: Finished difference Result 5297 states and 7732 transitions. [2020-12-23 09:37:44,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:37:44,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 09:37:44,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:44,985 INFO L225 Difference]: With dead ends: 5297 [2020-12-23 09:37:44,985 INFO L226 Difference]: Without dead ends: 2664 [2020-12-23 09:37:44,989 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 09:37:44,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2020-12-23 09:37:45,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2020-12-23 09:37:45,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:45,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3856 transitions. [2020-12-23 09:37:45,139 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3856 transitions. Word has length 157 [2020-12-23 09:37:45,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:45,139 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3856 transitions. [2020-12-23 09:37:45,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:37:45,140 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3856 transitions. [2020-12-23 09:37:45,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:45,142 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:45,142 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:45,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 09:37:45,143 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:45,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:45,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1091503839, now seen corresponding path program 1 times [2020-12-23 09:37:45,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:45,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177735615] [2020-12-23 09:37:45,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:45,200 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 09:37:45,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177735615] [2020-12-23 09:37:45,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:45,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:45,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314459218] [2020-12-23 09:37:45,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:45,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:45,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:45,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:45,202 INFO L87 Difference]: Start difference. First operand 2664 states and 3856 transitions. Second operand 4 states. [2020-12-23 09:37:45,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:45,597 INFO L93 Difference]: Finished difference Result 6414 states and 9277 transitions. [2020-12-23 09:37:45,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:45,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:45,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:45,606 INFO L225 Difference]: With dead ends: 6414 [2020-12-23 09:37:45,606 INFO L226 Difference]: Without dead ends: 3782 [2020-12-23 09:37:45,611 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 09:37:45,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states. [2020-12-23 09:37:45,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 2664. [2020-12-23 09:37:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:45,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3853 transitions. [2020-12-23 09:37:45,784 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3853 transitions. Word has length 157 [2020-12-23 09:37:45,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:45,785 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3853 transitions. [2020-12-23 09:37:45,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:45,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3853 transitions. [2020-12-23 09:37:45,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:45,786 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:45,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:45,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 09:37:45,787 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:45,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:45,787 INFO L82 PathProgramCache]: Analyzing trace with hash 661845533, now seen corresponding path program 1 times [2020-12-23 09:37:45,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:45,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674351859] [2020-12-23 09:37:45,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:45,872 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 09:37:45,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674351859] [2020-12-23 09:37:45,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:45,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:45,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356135414] [2020-12-23 09:37:45,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:45,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:45,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:45,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:45,875 INFO L87 Difference]: Start difference. First operand 2664 states and 3853 transitions. Second operand 4 states. [2020-12-23 09:37:46,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:46,281 INFO L93 Difference]: Finished difference Result 6412 states and 9267 transitions. [2020-12-23 09:37:46,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:46,282 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:46,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:46,290 INFO L225 Difference]: With dead ends: 6412 [2020-12-23 09:37:46,290 INFO L226 Difference]: Without dead ends: 3781 [2020-12-23 09:37:46,295 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 09:37:46,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3781 states. [2020-12-23 09:37:46,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3781 to 2664. [2020-12-23 09:37:46,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:46,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3850 transitions. [2020-12-23 09:37:46,476 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3850 transitions. Word has length 157 [2020-12-23 09:37:46,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:46,476 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3850 transitions. [2020-12-23 09:37:46,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:46,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3850 transitions. [2020-12-23 09:37:46,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:46,478 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:46,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:46,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 09:37:46,478 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:46,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:46,479 INFO L82 PathProgramCache]: Analyzing trace with hash -44751073, now seen corresponding path program 1 times [2020-12-23 09:37:46,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:46,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863006565] [2020-12-23 09:37:46,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:46,535 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 09:37:46,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863006565] [2020-12-23 09:37:46,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:46,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:46,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587982171] [2020-12-23 09:37:46,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:46,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:46,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:46,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:46,538 INFO L87 Difference]: Start difference. First operand 2664 states and 3850 transitions. Second operand 4 states. [2020-12-23 09:37:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:46,984 INFO L93 Difference]: Finished difference Result 6410 states and 9257 transitions. [2020-12-23 09:37:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:46,984 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:46,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:46,993 INFO L225 Difference]: With dead ends: 6410 [2020-12-23 09:37:46,993 INFO L226 Difference]: Without dead ends: 3780 [2020-12-23 09:37:46,998 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 09:37:47,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2020-12-23 09:37:47,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 2664. [2020-12-23 09:37:47,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:47,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3847 transitions. [2020-12-23 09:37:47,184 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3847 transitions. Word has length 157 [2020-12-23 09:37:47,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:47,185 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3847 transitions. [2020-12-23 09:37:47,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:47,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3847 transitions. [2020-12-23 09:37:47,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:47,186 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:47,187 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:47,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 09:37:47,187 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:47,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:47,188 INFO L82 PathProgramCache]: Analyzing trace with hash 902286813, now seen corresponding path program 1 times [2020-12-23 09:37:47,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:47,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695731617] [2020-12-23 09:37:47,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:47,245 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 09:37:47,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695731617] [2020-12-23 09:37:47,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:47,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:47,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597057334] [2020-12-23 09:37:47,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:47,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:47,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:47,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:47,247 INFO L87 Difference]: Start difference. First operand 2664 states and 3847 transitions. Second operand 4 states. [2020-12-23 09:37:47,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:47,736 INFO L93 Difference]: Finished difference Result 6408 states and 9247 transitions. [2020-12-23 09:37:47,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:47,737 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:47,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:47,746 INFO L225 Difference]: With dead ends: 6408 [2020-12-23 09:37:47,746 INFO L226 Difference]: Without dead ends: 3779 [2020-12-23 09:37:47,751 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 09:37:47,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2020-12-23 09:37:48,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 2664. [2020-12-23 09:37:48,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:48,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3844 transitions. [2020-12-23 09:37:48,015 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3844 transitions. Word has length 157 [2020-12-23 09:37:48,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:48,015 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3844 transitions. [2020-12-23 09:37:48,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:48,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3844 transitions. [2020-12-23 09:37:48,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:48,017 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:48,017 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:48,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 09:37:48,018 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:48,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:48,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1764120415, now seen corresponding path program 1 times [2020-12-23 09:37:48,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:48,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703820621] [2020-12-23 09:37:48,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:48,094 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 09:37:48,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703820621] [2020-12-23 09:37:48,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:48,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:48,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714512912] [2020-12-23 09:37:48,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:48,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:48,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:48,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:48,096 INFO L87 Difference]: Start difference. First operand 2664 states and 3844 transitions. Second operand 4 states. [2020-12-23 09:37:48,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:48,525 INFO L93 Difference]: Finished difference Result 6406 states and 9237 transitions. [2020-12-23 09:37:48,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:48,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:48,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:48,533 INFO L225 Difference]: With dead ends: 6406 [2020-12-23 09:37:48,533 INFO L226 Difference]: Without dead ends: 3778 [2020-12-23 09:37:48,538 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 09:37:48,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2020-12-23 09:37:48,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 2664. [2020-12-23 09:37:48,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:48,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3841 transitions. [2020-12-23 09:37:48,743 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3841 transitions. Word has length 157 [2020-12-23 09:37:48,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:48,743 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3841 transitions. [2020-12-23 09:37:48,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:48,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3841 transitions. [2020-12-23 09:37:48,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:48,745 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:48,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:48,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 09:37:48,745 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:48,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:48,746 INFO L82 PathProgramCache]: Analyzing trace with hash -286288483, now seen corresponding path program 1 times [2020-12-23 09:37:48,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:48,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410442771] [2020-12-23 09:37:48,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:48,802 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 09:37:48,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410442771] [2020-12-23 09:37:48,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:48,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:48,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865880746] [2020-12-23 09:37:48,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:48,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:48,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:48,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:48,805 INFO L87 Difference]: Start difference. First operand 2664 states and 3841 transitions. Second operand 4 states. [2020-12-23 09:37:49,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:49,262 INFO L93 Difference]: Finished difference Result 6402 states and 9223 transitions. [2020-12-23 09:37:49,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:49,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:49,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:49,271 INFO L225 Difference]: With dead ends: 6402 [2020-12-23 09:37:49,271 INFO L226 Difference]: Without dead ends: 3776 [2020-12-23 09:37:49,277 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 09:37:49,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2020-12-23 09:37:49,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 2664. [2020-12-23 09:37:49,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-12-23 09:37:49,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3838 transitions. [2020-12-23 09:37:49,468 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3838 transitions. Word has length 157 [2020-12-23 09:37:49,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:49,468 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3838 transitions. [2020-12-23 09:37:49,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:49,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3838 transitions. [2020-12-23 09:37:49,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:49,470 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:49,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:49,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 09:37:49,470 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:49,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:49,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1378923685, now seen corresponding path program 1 times [2020-12-23 09:37:49,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:49,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418159002] [2020-12-23 09:37:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:49,534 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 09:37:49,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418159002] [2020-12-23 09:37:49,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:49,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:37:49,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417669506] [2020-12-23 09:37:49,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:37:49,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:49,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:37:49,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:37:49,536 INFO L87 Difference]: Start difference. First operand 2664 states and 3838 transitions. Second operand 5 states. [2020-12-23 09:37:50,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:50,223 INFO L93 Difference]: Finished difference Result 8188 states and 11860 transitions. [2020-12-23 09:37:50,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:37:50,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-12-23 09:37:50,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:50,231 INFO L225 Difference]: With dead ends: 8188 [2020-12-23 09:37:50,231 INFO L226 Difference]: Without dead ends: 5569 [2020-12-23 09:37:50,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:37:50,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2020-12-23 09:37:50,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 2703. [2020-12-23 09:37:50,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2703 states. [2020-12-23 09:37:50,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2703 states to 2703 states and 3864 transitions. [2020-12-23 09:37:50,497 INFO L78 Accepts]: Start accepts. Automaton has 2703 states and 3864 transitions. Word has length 157 [2020-12-23 09:37:50,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:50,498 INFO L481 AbstractCegarLoop]: Abstraction has 2703 states and 3864 transitions. [2020-12-23 09:37:50,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:37:50,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2703 states and 3864 transitions. [2020-12-23 09:37:50,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:50,500 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:50,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:50,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 09:37:50,502 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:50,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:50,502 INFO L82 PathProgramCache]: Analyzing trace with hash 622962585, now seen corresponding path program 1 times [2020-12-23 09:37:50,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:50,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858172283] [2020-12-23 09:37:50,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:50,568 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 09:37:50,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858172283] [2020-12-23 09:37:50,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:50,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:50,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997120156] [2020-12-23 09:37:50,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:50,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:50,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:50,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:50,574 INFO L87 Difference]: Start difference. First operand 2703 states and 3864 transitions. Second operand 4 states. [2020-12-23 09:37:51,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:51,376 INFO L93 Difference]: Finished difference Result 10179 states and 14538 transitions. [2020-12-23 09:37:51,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:51,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:51,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:51,383 INFO L225 Difference]: With dead ends: 10179 [2020-12-23 09:37:51,383 INFO L226 Difference]: Without dead ends: 7516 [2020-12-23 09:37:51,388 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 09:37:51,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7516 states. [2020-12-23 09:37:51,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7516 to 7184. [2020-12-23 09:37:51,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7184 states. [2020-12-23 09:37:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7184 states to 7184 states and 10199 transitions. [2020-12-23 09:37:51,889 INFO L78 Accepts]: Start accepts. Automaton has 7184 states and 10199 transitions. Word has length 157 [2020-12-23 09:37:51,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:51,889 INFO L481 AbstractCegarLoop]: Abstraction has 7184 states and 10199 transitions. [2020-12-23 09:37:51,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 7184 states and 10199 transitions. [2020-12-23 09:37:51,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:51,891 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:51,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:51,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 09:37:51,891 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:51,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:51,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1625588280, now seen corresponding path program 1 times [2020-12-23 09:37:51,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:51,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628532257] [2020-12-23 09:37:51,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:51,947 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 09:37:51,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628532257] [2020-12-23 09:37:51,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:51,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:37:51,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888652137] [2020-12-23 09:37:51,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:37:51,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:51,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:37:51,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:37:51,949 INFO L87 Difference]: Start difference. First operand 7184 states and 10199 transitions. Second operand 5 states. [2020-12-23 09:37:53,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:53,134 INFO L93 Difference]: Finished difference Result 18995 states and 27033 transitions. [2020-12-23 09:37:53,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:37:53,134 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-12-23 09:37:53,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:53,148 INFO L225 Difference]: With dead ends: 18995 [2020-12-23 09:37:53,148 INFO L226 Difference]: Without dead ends: 11861 [2020-12-23 09:37:53,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:37:53,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11861 states. [2020-12-23 09:37:53,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11861 to 7259. [2020-12-23 09:37:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7259 states. [2020-12-23 09:37:53,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7259 states to 7259 states and 10229 transitions. [2020-12-23 09:37:53,844 INFO L78 Accepts]: Start accepts. Automaton has 7259 states and 10229 transitions. Word has length 157 [2020-12-23 09:37:53,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:53,844 INFO L481 AbstractCegarLoop]: Abstraction has 7259 states and 10229 transitions. [2020-12-23 09:37:53,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:37:53,844 INFO L276 IsEmpty]: Start isEmpty. Operand 7259 states and 10229 transitions. [2020-12-23 09:37:53,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:53,845 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:53,845 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:53,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-23 09:37:53,846 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:53,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:53,846 INFO L82 PathProgramCache]: Analyzing trace with hash -347577098, now seen corresponding path program 1 times [2020-12-23 09:37:53,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:53,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793786796] [2020-12-23 09:37:53,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:53,904 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 09:37:53,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793786796] [2020-12-23 09:37:53,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:53,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:37:53,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565824208] [2020-12-23 09:37:53,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:37:53,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:53,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:37:53,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:37:53,906 INFO L87 Difference]: Start difference. First operand 7259 states and 10229 transitions. Second operand 5 states. [2020-12-23 09:37:55,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:55,475 INFO L93 Difference]: Finished difference Result 27194 states and 38509 transitions. [2020-12-23 09:37:55,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:37:55,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-12-23 09:37:55,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:55,493 INFO L225 Difference]: With dead ends: 27194 [2020-12-23 09:37:55,494 INFO L226 Difference]: Without dead ends: 19992 [2020-12-23 09:37:55,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:37:55,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19992 states. [2020-12-23 09:37:56,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19992 to 7469. [2020-12-23 09:37:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7469 states. [2020-12-23 09:37:56,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7469 states to 7469 states and 10439 transitions. [2020-12-23 09:37:56,249 INFO L78 Accepts]: Start accepts. Automaton has 7469 states and 10439 transitions. Word has length 157 [2020-12-23 09:37:56,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:56,249 INFO L481 AbstractCegarLoop]: Abstraction has 7469 states and 10439 transitions. [2020-12-23 09:37:56,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:37:56,249 INFO L276 IsEmpty]: Start isEmpty. Operand 7469 states and 10439 transitions. [2020-12-23 09:37:56,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:56,251 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:56,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:56,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-23 09:37:56,252 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:56,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:56,253 INFO L82 PathProgramCache]: Analyzing trace with hash 2080681524, now seen corresponding path program 1 times [2020-12-23 09:37:56,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:56,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832493759] [2020-12-23 09:37:56,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:56,332 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 09:37:56,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832493759] [2020-12-23 09:37:56,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:56,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:37:56,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982569665] [2020-12-23 09:37:56,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:37:56,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:56,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:37:56,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:37:56,334 INFO L87 Difference]: Start difference. First operand 7469 states and 10439 transitions. Second operand 4 states. [2020-12-23 09:37:58,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:58,192 INFO L93 Difference]: Finished difference Result 28580 states and 39916 transitions. [2020-12-23 09:37:58,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:37:58,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:37:58,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:58,213 INFO L225 Difference]: With dead ends: 28580 [2020-12-23 09:37:58,213 INFO L226 Difference]: Without dead ends: 21173 [2020-12-23 09:37:58,221 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 09:37:58,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21173 states. [2020-12-23 09:37:59,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21173 to 20399. [2020-12-23 09:37:59,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20399 states. [2020-12-23 09:37:59,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20399 states to 20399 states and 28323 transitions. [2020-12-23 09:37:59,848 INFO L78 Accepts]: Start accepts. Automaton has 20399 states and 28323 transitions. Word has length 157 [2020-12-23 09:37:59,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:59,848 INFO L481 AbstractCegarLoop]: Abstraction has 20399 states and 28323 transitions. [2020-12-23 09:37:59,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:37:59,848 INFO L276 IsEmpty]: Start isEmpty. Operand 20399 states and 28323 transitions. [2020-12-23 09:37:59,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:37:59,849 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:59,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:59,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-23 09:37:59,850 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:59,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:59,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1077624659, now seen corresponding path program 1 times [2020-12-23 09:37:59,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:59,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250932647] [2020-12-23 09:37:59,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:59,907 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 09:37:59,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250932647] [2020-12-23 09:37:59,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:59,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:37:59,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151185864] [2020-12-23 09:37:59,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:37:59,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:59,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:37:59,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:37:59,909 INFO L87 Difference]: Start difference. First operand 20399 states and 28323 transitions. Second operand 5 states. [2020-12-23 09:38:03,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:03,090 INFO L93 Difference]: Finished difference Result 53014 states and 73944 transitions. [2020-12-23 09:38:03,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:38:03,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-12-23 09:38:03,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:03,128 INFO L225 Difference]: With dead ends: 53014 [2020-12-23 09:38:03,129 INFO L226 Difference]: Without dead ends: 32681 [2020-12-23 09:38:03,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:38:03,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32681 states. [2020-12-23 09:38:04,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32681 to 20606. [2020-12-23 09:38:04,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20606 states. [2020-12-23 09:38:04,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20606 states to 20606 states and 28407 transitions. [2020-12-23 09:38:04,934 INFO L78 Accepts]: Start accepts. Automaton has 20606 states and 28407 transitions. Word has length 157 [2020-12-23 09:38:04,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:04,934 INFO L481 AbstractCegarLoop]: Abstraction has 20606 states and 28407 transitions. [2020-12-23 09:38:04,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:38:04,934 INFO L276 IsEmpty]: Start isEmpty. Operand 20606 states and 28407 transitions. [2020-12-23 09:38:04,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:38:04,936 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:04,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:38:04,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-23 09:38:04,936 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:04,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:04,937 INFO L82 PathProgramCache]: Analyzing trace with hash 20893457, now seen corresponding path program 1 times [2020-12-23 09:38:04,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:04,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549179678] [2020-12-23 09:38:04,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:04,993 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 09:38:04,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549179678] [2020-12-23 09:38:04,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:04,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:38:04,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573486073] [2020-12-23 09:38:04,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:38:04,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:04,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:38:04,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:04,995 INFO L87 Difference]: Start difference. First operand 20606 states and 28407 transitions. Second operand 5 states. [2020-12-23 09:38:07,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:07,639 INFO L93 Difference]: Finished difference Result 45870 states and 63028 transitions. [2020-12-23 09:38:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:38:07,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-12-23 09:38:07,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:07,669 INFO L225 Difference]: With dead ends: 45870 [2020-12-23 09:38:07,669 INFO L226 Difference]: Without dead ends: 25337 [2020-12-23 09:38:07,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:38:07,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25337 states. [2020-12-23 09:38:09,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25337 to 20624. [2020-12-23 09:38:09,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20624 states. [2020-12-23 09:38:09,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20624 states to 20624 states and 28239 transitions. [2020-12-23 09:38:09,535 INFO L78 Accepts]: Start accepts. Automaton has 20624 states and 28239 transitions. Word has length 157 [2020-12-23 09:38:09,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:09,535 INFO L481 AbstractCegarLoop]: Abstraction has 20624 states and 28239 transitions. [2020-12-23 09:38:09,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:38:09,535 INFO L276 IsEmpty]: Start isEmpty. Operand 20624 states and 28239 transitions. [2020-12-23 09:38:09,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:38:09,537 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:09,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:38:09,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-23 09:38:09,538 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:09,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:09,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1897956687, now seen corresponding path program 1 times [2020-12-23 09:38:09,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:09,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135147741] [2020-12-23 09:38:09,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:09,603 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 09:38:09,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135147741] [2020-12-23 09:38:09,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:09,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:09,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868516545] [2020-12-23 09:38:09,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:09,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:09,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:09,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:09,605 INFO L87 Difference]: Start difference. First operand 20624 states and 28239 transitions. Second operand 4 states. [2020-12-23 09:38:14,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:14,930 INFO L93 Difference]: Finished difference Result 79218 states and 108455 transitions. [2020-12-23 09:38:14,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:14,931 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 09:38:14,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:14,993 INFO L225 Difference]: With dead ends: 79218 [2020-12-23 09:38:14,993 INFO L226 Difference]: Without dead ends: 58669 [2020-12-23 09:38:15,009 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 09:38:15,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58669 states. [2020-12-23 09:38:20,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58669 to 56947. [2020-12-23 09:38:20,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56947 states. [2020-12-23 09:38:20,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56947 states to 56947 states and 77534 transitions. [2020-12-23 09:38:20,458 INFO L78 Accepts]: Start accepts. Automaton has 56947 states and 77534 transitions. Word has length 157 [2020-12-23 09:38:20,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:20,458 INFO L481 AbstractCegarLoop]: Abstraction has 56947 states and 77534 transitions. [2020-12-23 09:38:20,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:20,459 INFO L276 IsEmpty]: Start isEmpty. Operand 56947 states and 77534 transitions. [2020-12-23 09:38:20,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:38:20,460 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:20,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:38:20,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-23 09:38:20,461 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:20,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:20,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1194816274, now seen corresponding path program 1 times [2020-12-23 09:38:20,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:20,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765425166] [2020-12-23 09:38:20,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:20,519 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 09:38:20,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765425166] [2020-12-23 09:38:20,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:20,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:38:20,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227961715] [2020-12-23 09:38:20,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:38:20,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:20,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:38:20,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:20,521 INFO L87 Difference]: Start difference. First operand 56947 states and 77534 transitions. Second operand 5 states. [2020-12-23 09:38:28,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:28,580 INFO L93 Difference]: Finished difference Result 145557 states and 199502 transitions. [2020-12-23 09:38:28,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:38:28,580 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-12-23 09:38:28,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:28,677 INFO L225 Difference]: With dead ends: 145557 [2020-12-23 09:38:28,677 INFO L226 Difference]: Without dead ends: 88689 [2020-12-23 09:38:28,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:38:28,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88689 states. [2020-12-23 09:38:34,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88689 to 57520. [2020-12-23 09:38:34,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57520 states. [2020-12-23 09:38:34,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57520 states to 57520 states and 77768 transitions. [2020-12-23 09:38:34,499 INFO L78 Accepts]: Start accepts. Automaton has 57520 states and 77768 transitions. Word has length 157 [2020-12-23 09:38:34,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:34,499 INFO L481 AbstractCegarLoop]: Abstraction has 57520 states and 77768 transitions. [2020-12-23 09:38:34,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:38:34,499 INFO L276 IsEmpty]: Start isEmpty. Operand 57520 states and 77768 transitions. [2020-12-23 09:38:34,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:38:34,501 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:34,501 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:38:34,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-23 09:38:34,501 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:34,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:34,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1221020076, now seen corresponding path program 1 times [2020-12-23 09:38:34,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:34,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844310468] [2020-12-23 09:38:34,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:34,568 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 09:38:34,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844310468] [2020-12-23 09:38:34,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:34,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:34,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842974061] [2020-12-23 09:38:34,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:34,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:34,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:34,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:34,573 INFO L87 Difference]: Start difference. First operand 57520 states and 77768 transitions. Second operand 3 states. [2020-12-23 09:38:45,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:45,039 INFO L93 Difference]: Finished difference Result 167067 states and 225884 transitions. [2020-12-23 09:38:45,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:45,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 09:38:45,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:45,308 INFO L225 Difference]: With dead ends: 167067 [2020-12-23 09:38:45,308 INFO L226 Difference]: Without dead ends: 109628 [2020-12-23 09:38:45,356 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 09:38:45,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109628 states. [2020-12-23 09:38:55,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109628 to 109518. [2020-12-23 09:38:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109518 states. [2020-12-23 09:38:55,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109518 states to 109518 states and 147576 transitions. [2020-12-23 09:38:55,936 INFO L78 Accepts]: Start accepts. Automaton has 109518 states and 147576 transitions. Word has length 157 [2020-12-23 09:38:55,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:55,937 INFO L481 AbstractCegarLoop]: Abstraction has 109518 states and 147576 transitions. [2020-12-23 09:38:55,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:55,937 INFO L276 IsEmpty]: Start isEmpty. Operand 109518 states and 147576 transitions. [2020-12-23 09:38:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:38:55,939 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:55,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:38:55,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-23 09:38:55,939 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:55,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:55,940 INFO L82 PathProgramCache]: Analyzing trace with hash -763808629, now seen corresponding path program 1 times [2020-12-23 09:38:55,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:55,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777773160] [2020-12-23 09:38:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:56,020 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 09:38:56,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777773160] [2020-12-23 09:38:56,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:56,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:38:56,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470034440] [2020-12-23 09:38:56,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:38:56,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:56,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:38:56,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:56,023 INFO L87 Difference]: Start difference. First operand 109518 states and 147576 transitions. Second operand 5 states. [2020-12-23 09:39:14,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:14,321 INFO L93 Difference]: Finished difference Result 304441 states and 414057 transitions. [2020-12-23 09:39:14,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:39:14,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-12-23 09:39:14,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:14,581 INFO L225 Difference]: With dead ends: 304441 [2020-12-23 09:39:14,581 INFO L226 Difference]: Without dead ends: 195008 [2020-12-23 09:39:14,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:39:15,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195008 states. [2020-12-23 09:39:26,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195008 to 111105. [2020-12-23 09:39:26,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111105 states. [2020-12-23 09:39:26,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111105 states to 111105 states and 148687 transitions. [2020-12-23 09:39:26,509 INFO L78 Accepts]: Start accepts. Automaton has 111105 states and 148687 transitions. Word has length 157 [2020-12-23 09:39:26,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:26,509 INFO L481 AbstractCegarLoop]: Abstraction has 111105 states and 148687 transitions. [2020-12-23 09:39:26,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:39:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand 111105 states and 148687 transitions. [2020-12-23 09:39:26,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 09:39:26,529 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:26,529 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:39:26,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-23 09:39:26,529 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:26,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:26,530 INFO L82 PathProgramCache]: Analyzing trace with hash 75225033, now seen corresponding path program 1 times [2020-12-23 09:39:26,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:26,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558806636] [2020-12-23 09:39:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:26,593 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 09:39:26,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558806636] [2020-12-23 09:39:26,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:26,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:26,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909621846] [2020-12-23 09:39:26,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:39:26,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:26,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:39:26,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:39:26,595 INFO L87 Difference]: Start difference. First operand 111105 states and 148687 transitions. Second operand 4 states.