/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-178dd20 [2021-01-06 19:31:07,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 19:31:07,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 19:31:07,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 19:31:07,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 19:31:07,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 19:31:07,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 19:31:07,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 19:31:07,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 19:31:07,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 19:31:07,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 19:31:07,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 19:31:07,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 19:31:07,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 19:31:07,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 19:31:07,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 19:31:07,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 19:31:07,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 19:31:07,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 19:31:07,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 19:31:07,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 19:31:07,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 19:31:07,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 19:31:07,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 19:31:07,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 19:31:07,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 19:31:07,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 19:31:07,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 19:31:07,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 19:31:07,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 19:31:07,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 19:31:07,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 19:31:07,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 19:31:07,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 19:31:07,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 19:31:07,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 19:31:07,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 19:31:07,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 19:31:07,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 19:31:07,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 19:31:07,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 19:31:07,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 19:31:07,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 19:31:07,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 19:31:07,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 19:31:07,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 19:31:07,519 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 19:31:07,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 19:31:07,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 19:31:07,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 19:31:07,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 19:31:07,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 19:31:07,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 19:31:07,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 19:31:07,522 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 19:31:07,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 19:31:07,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 19:31:07,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 19:31:07,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 19:31:07,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 19:31:07,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 19:31:07,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 19:31:07,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 19:31:07,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 19:31:07,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 19:31:07,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 19:31:07,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 19:31:07,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 19:31:07,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 19:31:08,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 19:31:08,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 19:31:08,008 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 19:31:08,009 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 19:31:08,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.11.cil.c [2021-01-06 19:31:08,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/618fada85/51890c76c46c4c3d994447941f99fc16/FLAG975a726a7 [2021-01-06 19:31:08,881 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 19:31:08,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.11.cil.c [2021-01-06 19:31:08,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/618fada85/51890c76c46c4c3d994447941f99fc16/FLAG975a726a7 [2021-01-06 19:31:09,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/618fada85/51890c76c46c4c3d994447941f99fc16 [2021-01-06 19:31:09,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 19:31:09,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 19:31:09,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 19:31:09,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 19:31:09,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 19:31:09,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:31:09" (1/1) ... [2021-01-06 19:31:09,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9580f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09, skipping insertion in model container [2021-01-06 19:31:09,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:31:09" (1/1) ... [2021-01-06 19:31:09,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 19:31:09,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 19:31:09,409 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,] [2021-01-06 19:31:09,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:31:09,708 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 19:31:09,736 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,] [2021-01-06 19:31:09,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:31:09,955 INFO L208 MainTranslator]: Completed translation [2021-01-06 19:31:09,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09 WrapperNode [2021-01-06 19:31:09,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 19:31:09,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 19:31:09,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 19:31:09,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 19:31:09,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09" (1/1) ... [2021-01-06 19:31:09,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09" (1/1) ... [2021-01-06 19:31:10,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 19:31:10,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 19:31:10,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 19:31:10,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 19:31:10,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09" (1/1) ... [2021-01-06 19:31:10,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09" (1/1) ... [2021-01-06 19:31:10,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09" (1/1) ... [2021-01-06 19:31:10,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09" (1/1) ... [2021-01-06 19:31:10,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09" (1/1) ... [2021-01-06 19:31:10,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09" (1/1) ... [2021-01-06 19:31:10,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09" (1/1) ... [2021-01-06 19:31:10,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 19:31:10,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 19:31:10,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 19:31:10,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 19:31:10,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 19:31:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 19:31:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 19:31:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 19:31:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 19:31:12,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 19:31:12,807 INFO L299 CfgBuilder]: Removed 463 assume(true) statements. [2021-01-06 19:31:12,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:31:12 BoogieIcfgContainer [2021-01-06 19:31:12,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 19:31:12,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 19:31:12,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 19:31:12,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 19:31:12,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 07:31:09" (1/3) ... [2021-01-06 19:31:12,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d369dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:31:12, skipping insertion in model container [2021-01-06 19:31:12,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:31:09" (2/3) ... [2021-01-06 19:31:12,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d369dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:31:12, skipping insertion in model container [2021-01-06 19:31:12,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:31:12" (3/3) ... [2021-01-06 19:31:12,839 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.11.cil.c [2021-01-06 19:31:12,858 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 19:31:12,868 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 19:31:12,889 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 19:31:12,936 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 19:31:12,937 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 19:31:12,937 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 19:31:12,937 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 19:31:12,937 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 19:31:12,937 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 19:31:12,938 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 19:31:12,938 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 19:31:12,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states. [2021-01-06 19:31:13,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:13,000 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:13,001 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] [2021-01-06 19:31:13,002 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:13,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:13,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1802935973, now seen corresponding path program 1 times [2021-01-06 19:31:13,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:13,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075064896] [2021-01-06 19:31:13,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:13,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:13,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075064896] [2021-01-06 19:31:13,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:13,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:13,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745077611] [2021-01-06 19:31:13,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:31:13,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:13,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:31:13,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:31:13,470 INFO L87 Difference]: Start difference. First operand 1452 states. Second operand 3 states. [2021-01-06 19:31:13,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:13,648 INFO L93 Difference]: Finished difference Result 2899 states and 4393 transitions. [2021-01-06 19:31:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:31:13,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2021-01-06 19:31:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:13,696 INFO L225 Difference]: With dead ends: 2899 [2021-01-06 19:31:13,697 INFO L226 Difference]: Without dead ends: 1448 [2021-01-06 19:31:13,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:31:13,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2021-01-06 19:31:13,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1448. [2021-01-06 19:31:13,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states. [2021-01-06 19:31:13,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2164 transitions. [2021-01-06 19:31:13,854 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2164 transitions. Word has length 157 [2021-01-06 19:31:13,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:13,855 INFO L481 AbstractCegarLoop]: Abstraction has 1448 states and 2164 transitions. [2021-01-06 19:31:13,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:31:13,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2164 transitions. [2021-01-06 19:31:13,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:13,866 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:13,867 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] [2021-01-06 19:31:13,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 19:31:13,868 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:13,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:13,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1086839645, now seen corresponding path program 1 times [2021-01-06 19:31:13,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:13,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055200636] [2021-01-06 19:31:13,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:14,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:14,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055200636] [2021-01-06 19:31:14,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:14,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:14,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674586494] [2021-01-06 19:31:14,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:31:14,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:14,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:31:14,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:31:14,079 INFO L87 Difference]: Start difference. First operand 1448 states and 2164 transitions. Second operand 3 states. [2021-01-06 19:31:14,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:14,153 INFO L93 Difference]: Finished difference Result 2883 states and 4306 transitions. [2021-01-06 19:31:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:31:14,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2021-01-06 19:31:14,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:14,165 INFO L225 Difference]: With dead ends: 2883 [2021-01-06 19:31:14,165 INFO L226 Difference]: Without dead ends: 1448 [2021-01-06 19:31:14,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:31:14,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2021-01-06 19:31:14,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1448. [2021-01-06 19:31:14,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states. [2021-01-06 19:31:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2163 transitions. [2021-01-06 19:31:14,261 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2163 transitions. Word has length 157 [2021-01-06 19:31:14,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:14,262 INFO L481 AbstractCegarLoop]: Abstraction has 1448 states and 2163 transitions. [2021-01-06 19:31:14,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:31:14,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2163 transitions. [2021-01-06 19:31:14,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:14,266 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:14,266 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] [2021-01-06 19:31:14,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 19:31:14,267 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:14,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:14,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1311148193, now seen corresponding path program 1 times [2021-01-06 19:31:14,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:14,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391098059] [2021-01-06 19:31:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:14,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391098059] [2021-01-06 19:31:14,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:14,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:31:14,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871182322] [2021-01-06 19:31:14,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:31:14,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:14,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:31:14,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:31:14,459 INFO L87 Difference]: Start difference. First operand 1448 states and 2163 transitions. Second operand 3 states. [2021-01-06 19:31:14,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:14,747 INFO L93 Difference]: Finished difference Result 4098 states and 6103 transitions. [2021-01-06 19:31:14,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:31:14,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2021-01-06 19:31:14,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:14,767 INFO L225 Difference]: With dead ends: 4098 [2021-01-06 19:31:14,768 INFO L226 Difference]: Without dead ends: 2666 [2021-01-06 19:31:14,772 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 [2021-01-06 19:31:14,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states. [2021-01-06 19:31:14,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 2664. [2021-01-06 19:31:14,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:14,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3949 transitions. [2021-01-06 19:31:14,935 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3949 transitions. Word has length 157 [2021-01-06 19:31:14,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:14,945 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3949 transitions. [2021-01-06 19:31:14,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:31:14,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3949 transitions. [2021-01-06 19:31:14,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:14,948 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:14,948 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] [2021-01-06 19:31:14,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 19:31:14,949 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:14,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:14,950 INFO L82 PathProgramCache]: Analyzing trace with hash 417630305, now seen corresponding path program 1 times [2021-01-06 19:31:14,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:14,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315863217] [2021-01-06 19:31:14,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:15,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315863217] [2021-01-06 19:31:15,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:15,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:15,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796034606] [2021-01-06 19:31:15,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:15,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:15,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:15,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:15,133 INFO L87 Difference]: Start difference. First operand 2664 states and 3949 transitions. Second operand 4 states. [2021-01-06 19:31:15,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:15,499 INFO L93 Difference]: Finished difference Result 6528 states and 9658 transitions. [2021-01-06 19:31:15,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:15,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:15,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:15,521 INFO L225 Difference]: With dead ends: 6528 [2021-01-06 19:31:15,521 INFO L226 Difference]: Without dead ends: 3881 [2021-01-06 19:31:15,529 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 [2021-01-06 19:31:15,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3881 states. [2021-01-06 19:31:15,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3881 to 2664. [2021-01-06 19:31:15,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:15,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3946 transitions. [2021-01-06 19:31:15,677 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3946 transitions. Word has length 157 [2021-01-06 19:31:15,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:15,677 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3946 transitions. [2021-01-06 19:31:15,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:15,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3946 transitions. [2021-01-06 19:31:15,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:15,680 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:15,680 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] [2021-01-06 19:31:15,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 19:31:15,681 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:15,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:15,681 INFO L82 PathProgramCache]: Analyzing trace with hash 261649763, now seen corresponding path program 1 times [2021-01-06 19:31:15,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:15,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812785751] [2021-01-06 19:31:15,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:15,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:15,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812785751] [2021-01-06 19:31:15,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:15,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:15,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081995115] [2021-01-06 19:31:15,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:15,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:15,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:15,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:15,802 INFO L87 Difference]: Start difference. First operand 2664 states and 3946 transitions. Second operand 4 states. [2021-01-06 19:31:16,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:16,149 INFO L93 Difference]: Finished difference Result 6526 states and 9648 transitions. [2021-01-06 19:31:16,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:16,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:16,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:16,172 INFO L225 Difference]: With dead ends: 6526 [2021-01-06 19:31:16,172 INFO L226 Difference]: Without dead ends: 3880 [2021-01-06 19:31:16,177 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 [2021-01-06 19:31:16,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3880 states. [2021-01-06 19:31:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3880 to 2664. [2021-01-06 19:31:16,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:16,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3943 transitions. [2021-01-06 19:31:16,326 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3943 transitions. Word has length 157 [2021-01-06 19:31:16,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:16,326 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3943 transitions. [2021-01-06 19:31:16,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:16,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3943 transitions. [2021-01-06 19:31:16,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:16,328 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:16,329 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] [2021-01-06 19:31:16,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 19:31:16,329 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:16,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:16,330 INFO L82 PathProgramCache]: Analyzing trace with hash 672260129, now seen corresponding path program 1 times [2021-01-06 19:31:16,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:16,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915064550] [2021-01-06 19:31:16,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:16,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915064550] [2021-01-06 19:31:16,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:16,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:16,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073632534] [2021-01-06 19:31:16,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:16,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:16,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:16,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:16,406 INFO L87 Difference]: Start difference. First operand 2664 states and 3943 transitions. Second operand 4 states. [2021-01-06 19:31:16,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:16,775 INFO L93 Difference]: Finished difference Result 6524 states and 9638 transitions. [2021-01-06 19:31:16,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:16,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:16,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:16,795 INFO L225 Difference]: With dead ends: 6524 [2021-01-06 19:31:16,795 INFO L226 Difference]: Without dead ends: 3879 [2021-01-06 19:31:16,800 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 [2021-01-06 19:31:16,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3879 states. [2021-01-06 19:31:16,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3879 to 2664. [2021-01-06 19:31:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:16,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3940 transitions. [2021-01-06 19:31:16,952 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3940 transitions. Word has length 157 [2021-01-06 19:31:16,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:16,952 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3940 transitions. [2021-01-06 19:31:16,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:16,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3940 transitions. [2021-01-06 19:31:16,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:16,955 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:16,955 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] [2021-01-06 19:31:16,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 19:31:16,956 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:16,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:16,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1115609693, now seen corresponding path program 1 times [2021-01-06 19:31:16,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:16,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016611199] [2021-01-06 19:31:16,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:17,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:17,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016611199] [2021-01-06 19:31:17,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:17,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:31:17,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755787858] [2021-01-06 19:31:17,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:31:17,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:17,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:31:17,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:31:17,040 INFO L87 Difference]: Start difference. First operand 2664 states and 3940 transitions. Second operand 3 states. [2021-01-06 19:31:17,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:17,199 INFO L93 Difference]: Finished difference Result 5308 states and 7849 transitions. [2021-01-06 19:31:17,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:31:17,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2021-01-06 19:31:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:17,213 INFO L225 Difference]: With dead ends: 5308 [2021-01-06 19:31:17,213 INFO L226 Difference]: Without dead ends: 2664 [2021-01-06 19:31:17,219 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 [2021-01-06 19:31:17,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2021-01-06 19:31:17,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2021-01-06 19:31:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:17,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3932 transitions. [2021-01-06 19:31:17,413 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3932 transitions. Word has length 157 [2021-01-06 19:31:17,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:17,414 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3932 transitions. [2021-01-06 19:31:17,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:31:17,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3932 transitions. [2021-01-06 19:31:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:17,417 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:17,417 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] [2021-01-06 19:31:17,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 19:31:17,418 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:17,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:17,418 INFO L82 PathProgramCache]: Analyzing trace with hash 146081123, now seen corresponding path program 1 times [2021-01-06 19:31:17,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:17,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310552330] [2021-01-06 19:31:17,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:17,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:17,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310552330] [2021-01-06 19:31:17,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:17,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:17,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333177120] [2021-01-06 19:31:17,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:17,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:17,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:17,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:17,514 INFO L87 Difference]: Start difference. First operand 2664 states and 3932 transitions. Second operand 4 states. [2021-01-06 19:31:17,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:17,831 INFO L93 Difference]: Finished difference Result 6518 states and 9603 transitions. [2021-01-06 19:31:17,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:17,832 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:17,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:17,851 INFO L225 Difference]: With dead ends: 6518 [2021-01-06 19:31:17,851 INFO L226 Difference]: Without dead ends: 3876 [2021-01-06 19:31:17,858 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 [2021-01-06 19:31:17,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3876 states. [2021-01-06 19:31:18,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3876 to 2664. [2021-01-06 19:31:18,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:18,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3929 transitions. [2021-01-06 19:31:18,044 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3929 transitions. Word has length 157 [2021-01-06 19:31:18,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:18,044 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3929 transitions. [2021-01-06 19:31:18,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:18,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3929 transitions. [2021-01-06 19:31:18,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:18,046 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:18,047 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] [2021-01-06 19:31:18,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 19:31:18,047 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:18,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:18,048 INFO L82 PathProgramCache]: Analyzing trace with hash 563969825, now seen corresponding path program 1 times [2021-01-06 19:31:18,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:18,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785322643] [2021-01-06 19:31:18,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:18,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:18,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785322643] [2021-01-06 19:31:18,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:18,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:31:18,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546518533] [2021-01-06 19:31:18,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:31:18,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:18,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:31:18,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:31:18,124 INFO L87 Difference]: Start difference. First operand 2664 states and 3929 transitions. Second operand 3 states. [2021-01-06 19:31:18,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:18,265 INFO L93 Difference]: Finished difference Result 5305 states and 7823 transitions. [2021-01-06 19:31:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:31:18,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2021-01-06 19:31:18,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:18,280 INFO L225 Difference]: With dead ends: 5305 [2021-01-06 19:31:18,280 INFO L226 Difference]: Without dead ends: 2664 [2021-01-06 19:31:18,286 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 [2021-01-06 19:31:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2021-01-06 19:31:18,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2021-01-06 19:31:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:18,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3921 transitions. [2021-01-06 19:31:18,424 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3921 transitions. Word has length 157 [2021-01-06 19:31:18,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:18,424 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3921 transitions. [2021-01-06 19:31:18,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:31:18,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3921 transitions. [2021-01-06 19:31:18,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:18,427 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:18,427 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] [2021-01-06 19:31:18,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 19:31:18,427 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:18,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:18,428 INFO L82 PathProgramCache]: Analyzing trace with hash 591116129, now seen corresponding path program 1 times [2021-01-06 19:31:18,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:18,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448119930] [2021-01-06 19:31:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:18,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:18,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448119930] [2021-01-06 19:31:18,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:18,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:31:18,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311474145] [2021-01-06 19:31:18,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:31:18,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:18,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:31:18,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:31:18,486 INFO L87 Difference]: Start difference. First operand 2664 states and 3921 transitions. Second operand 3 states. [2021-01-06 19:31:18,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:18,628 INFO L93 Difference]: Finished difference Result 5304 states and 7806 transitions. [2021-01-06 19:31:18,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:31:18,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2021-01-06 19:31:18,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:18,636 INFO L225 Difference]: With dead ends: 5304 [2021-01-06 19:31:18,637 INFO L226 Difference]: Without dead ends: 2664 [2021-01-06 19:31:18,641 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 [2021-01-06 19:31:18,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2021-01-06 19:31:18,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2021-01-06 19:31:18,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:18,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3913 transitions. [2021-01-06 19:31:18,781 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3913 transitions. Word has length 157 [2021-01-06 19:31:18,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:18,781 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3913 transitions. [2021-01-06 19:31:18,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:31:18,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3913 transitions. [2021-01-06 19:31:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:18,783 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:18,783 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] [2021-01-06 19:31:18,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 19:31:18,784 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:18,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:18,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1423275809, now seen corresponding path program 1 times [2021-01-06 19:31:18,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:18,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422690680] [2021-01-06 19:31:18,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:18,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:18,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422690680] [2021-01-06 19:31:18,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:18,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:31:18,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310372855] [2021-01-06 19:31:18,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:31:18,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:18,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:31:18,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:31:18,843 INFO L87 Difference]: Start difference. First operand 2664 states and 3913 transitions. Second operand 3 states. [2021-01-06 19:31:18,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:18,981 INFO L93 Difference]: Finished difference Result 5303 states and 7789 transitions. [2021-01-06 19:31:18,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:31:18,981 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2021-01-06 19:31:18,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:18,988 INFO L225 Difference]: With dead ends: 5303 [2021-01-06 19:31:18,988 INFO L226 Difference]: Without dead ends: 2664 [2021-01-06 19:31:18,994 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 [2021-01-06 19:31:19,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2021-01-06 19:31:19,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2021-01-06 19:31:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:19,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3905 transitions. [2021-01-06 19:31:19,171 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3905 transitions. Word has length 157 [2021-01-06 19:31:19,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:19,172 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3905 transitions. [2021-01-06 19:31:19,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:31:19,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3905 transitions. [2021-01-06 19:31:19,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:19,174 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:19,174 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] [2021-01-06 19:31:19,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 19:31:19,175 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:19,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:19,175 INFO L82 PathProgramCache]: Analyzing trace with hash 757383009, now seen corresponding path program 1 times [2021-01-06 19:31:19,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:19,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798545330] [2021-01-06 19:31:19,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:19,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:19,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798545330] [2021-01-06 19:31:19,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:19,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:31:19,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915995369] [2021-01-06 19:31:19,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:31:19,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:19,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:31:19,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:31:19,231 INFO L87 Difference]: Start difference. First operand 2664 states and 3905 transitions. Second operand 3 states. [2021-01-06 19:31:19,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:19,366 INFO L93 Difference]: Finished difference Result 5302 states and 7772 transitions. [2021-01-06 19:31:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:31:19,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2021-01-06 19:31:19,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:19,373 INFO L225 Difference]: With dead ends: 5302 [2021-01-06 19:31:19,373 INFO L226 Difference]: Without dead ends: 2664 [2021-01-06 19:31:19,378 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 [2021-01-06 19:31:19,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2021-01-06 19:31:19,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2021-01-06 19:31:19,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:19,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3897 transitions. [2021-01-06 19:31:19,515 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3897 transitions. Word has length 157 [2021-01-06 19:31:19,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:19,516 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3897 transitions. [2021-01-06 19:31:19,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:31:19,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3897 transitions. [2021-01-06 19:31:19,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:19,518 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:19,518 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] [2021-01-06 19:31:19,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 19:31:19,519 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:19,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:19,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1705733921, now seen corresponding path program 1 times [2021-01-06 19:31:19,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:19,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252889396] [2021-01-06 19:31:19,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:19,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:19,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252889396] [2021-01-06 19:31:19,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:19,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:19,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561417972] [2021-01-06 19:31:19,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:19,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:19,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:19,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:19,609 INFO L87 Difference]: Start difference. First operand 2664 states and 3897 transitions. Second operand 4 states. [2021-01-06 19:31:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:19,961 INFO L93 Difference]: Finished difference Result 6508 states and 9509 transitions. [2021-01-06 19:31:19,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:19,962 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:19,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:19,972 INFO L225 Difference]: With dead ends: 6508 [2021-01-06 19:31:19,972 INFO L226 Difference]: Without dead ends: 3871 [2021-01-06 19:31:19,978 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 [2021-01-06 19:31:19,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3871 states. [2021-01-06 19:31:20,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3871 to 2664. [2021-01-06 19:31:20,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:20,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3894 transitions. [2021-01-06 19:31:20,129 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3894 transitions. Word has length 157 [2021-01-06 19:31:20,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:20,129 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3894 transitions. [2021-01-06 19:31:20,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:20,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3894 transitions. [2021-01-06 19:31:20,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:20,134 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:20,135 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] [2021-01-06 19:31:20,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 19:31:20,135 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:20,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:20,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1160861347, now seen corresponding path program 1 times [2021-01-06 19:31:20,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:20,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553696760] [2021-01-06 19:31:20,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:20,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:20,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553696760] [2021-01-06 19:31:20,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:20,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:20,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841348928] [2021-01-06 19:31:20,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:20,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:20,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:20,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:20,202 INFO L87 Difference]: Start difference. First operand 2664 states and 3894 transitions. Second operand 4 states. [2021-01-06 19:31:20,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:20,621 INFO L93 Difference]: Finished difference Result 6422 states and 9380 transitions. [2021-01-06 19:31:20,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:20,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:20,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:20,629 INFO L225 Difference]: With dead ends: 6422 [2021-01-06 19:31:20,629 INFO L226 Difference]: Without dead ends: 3786 [2021-01-06 19:31:20,635 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 [2021-01-06 19:31:20,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2021-01-06 19:31:20,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 2664. [2021-01-06 19:31:20,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:20,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3891 transitions. [2021-01-06 19:31:20,795 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3891 transitions. Word has length 157 [2021-01-06 19:31:20,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:20,795 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3891 transitions. [2021-01-06 19:31:20,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:20,796 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3891 transitions. [2021-01-06 19:31:20,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:20,798 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:20,798 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] [2021-01-06 19:31:20,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 19:31:20,798 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:20,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:20,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1836021473, now seen corresponding path program 1 times [2021-01-06 19:31:20,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:20,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494559896] [2021-01-06 19:31:20,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:20,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:20,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494559896] [2021-01-06 19:31:20,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:20,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:20,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996943962] [2021-01-06 19:31:20,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:20,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:20,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:20,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:20,861 INFO L87 Difference]: Start difference. First operand 2664 states and 3891 transitions. Second operand 4 states. [2021-01-06 19:31:21,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:21,274 INFO L93 Difference]: Finished difference Result 6418 states and 9366 transitions. [2021-01-06 19:31:21,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:21,274 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:21,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:21,282 INFO L225 Difference]: With dead ends: 6418 [2021-01-06 19:31:21,282 INFO L226 Difference]: Without dead ends: 3784 [2021-01-06 19:31:21,286 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 [2021-01-06 19:31:21,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2021-01-06 19:31:21,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 2664. [2021-01-06 19:31:21,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:21,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3888 transitions. [2021-01-06 19:31:21,440 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3888 transitions. Word has length 157 [2021-01-06 19:31:21,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:21,441 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3888 transitions. [2021-01-06 19:31:21,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:21,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3888 transitions. [2021-01-06 19:31:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:21,443 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:21,443 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] [2021-01-06 19:31:21,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 19:31:21,443 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:21,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:21,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1251249823, now seen corresponding path program 1 times [2021-01-06 19:31:21,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:21,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17718424] [2021-01-06 19:31:21,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:21,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:21,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17718424] [2021-01-06 19:31:21,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:21,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:31:21,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545269570] [2021-01-06 19:31:21,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:31:21,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:21,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:31:21,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:31:21,503 INFO L87 Difference]: Start difference. First operand 2664 states and 3888 transitions. Second operand 3 states. [2021-01-06 19:31:21,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:21,696 INFO L93 Difference]: Finished difference Result 5297 states and 7732 transitions. [2021-01-06 19:31:21,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:31:21,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2021-01-06 19:31:21,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:21,703 INFO L225 Difference]: With dead ends: 5297 [2021-01-06 19:31:21,703 INFO L226 Difference]: Without dead ends: 2664 [2021-01-06 19:31:21,708 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 [2021-01-06 19:31:21,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2021-01-06 19:31:21,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2021-01-06 19:31:21,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:21,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3856 transitions. [2021-01-06 19:31:21,857 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3856 transitions. Word has length 157 [2021-01-06 19:31:21,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:21,857 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3856 transitions. [2021-01-06 19:31:21,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:31:21,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3856 transitions. [2021-01-06 19:31:21,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:21,860 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:21,860 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] [2021-01-06 19:31:21,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 19:31:21,861 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:21,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:21,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1091503839, now seen corresponding path program 1 times [2021-01-06 19:31:21,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:21,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546161301] [2021-01-06 19:31:21,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:21,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546161301] [2021-01-06 19:31:21,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:21,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:21,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659999621] [2021-01-06 19:31:21,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:21,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:21,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:21,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:21,943 INFO L87 Difference]: Start difference. First operand 2664 states and 3856 transitions. Second operand 4 states. [2021-01-06 19:31:22,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:22,357 INFO L93 Difference]: Finished difference Result 6414 states and 9277 transitions. [2021-01-06 19:31:22,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:22,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:22,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:22,367 INFO L225 Difference]: With dead ends: 6414 [2021-01-06 19:31:22,367 INFO L226 Difference]: Without dead ends: 3782 [2021-01-06 19:31:22,372 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 [2021-01-06 19:31:22,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states. [2021-01-06 19:31:22,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 2664. [2021-01-06 19:31:22,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:22,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3853 transitions. [2021-01-06 19:31:22,545 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3853 transitions. Word has length 157 [2021-01-06 19:31:22,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:22,546 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3853 transitions. [2021-01-06 19:31:22,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:22,546 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3853 transitions. [2021-01-06 19:31:22,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:22,547 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:22,547 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] [2021-01-06 19:31:22,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 19:31:22,548 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:22,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:22,548 INFO L82 PathProgramCache]: Analyzing trace with hash 661845533, now seen corresponding path program 1 times [2021-01-06 19:31:22,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:22,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458433432] [2021-01-06 19:31:22,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:22,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458433432] [2021-01-06 19:31:22,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:22,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:22,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504350166] [2021-01-06 19:31:22,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:22,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:22,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:22,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:22,638 INFO L87 Difference]: Start difference. First operand 2664 states and 3853 transitions. Second operand 4 states. [2021-01-06 19:31:23,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:23,141 INFO L93 Difference]: Finished difference Result 6412 states and 9267 transitions. [2021-01-06 19:31:23,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:23,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:23,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:23,150 INFO L225 Difference]: With dead ends: 6412 [2021-01-06 19:31:23,150 INFO L226 Difference]: Without dead ends: 3781 [2021-01-06 19:31:23,155 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 [2021-01-06 19:31:23,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3781 states. [2021-01-06 19:31:23,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3781 to 2664. [2021-01-06 19:31:23,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:23,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3850 transitions. [2021-01-06 19:31:23,335 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3850 transitions. Word has length 157 [2021-01-06 19:31:23,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:23,335 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3850 transitions. [2021-01-06 19:31:23,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:23,335 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3850 transitions. [2021-01-06 19:31:23,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:23,336 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:23,337 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] [2021-01-06 19:31:23,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-06 19:31:23,337 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:23,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:23,337 INFO L82 PathProgramCache]: Analyzing trace with hash -44751073, now seen corresponding path program 1 times [2021-01-06 19:31:23,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:23,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881338777] [2021-01-06 19:31:23,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:23,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:23,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881338777] [2021-01-06 19:31:23,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:23,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:23,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737240646] [2021-01-06 19:31:23,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:23,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:23,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:23,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:23,398 INFO L87 Difference]: Start difference. First operand 2664 states and 3850 transitions. Second operand 4 states. [2021-01-06 19:31:23,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:23,863 INFO L93 Difference]: Finished difference Result 6410 states and 9257 transitions. [2021-01-06 19:31:23,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:23,864 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:23,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:23,872 INFO L225 Difference]: With dead ends: 6410 [2021-01-06 19:31:23,872 INFO L226 Difference]: Without dead ends: 3780 [2021-01-06 19:31:23,877 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 [2021-01-06 19:31:23,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2021-01-06 19:31:24,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 2664. [2021-01-06 19:31:24,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:24,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3847 transitions. [2021-01-06 19:31:24,065 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3847 transitions. Word has length 157 [2021-01-06 19:31:24,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:24,065 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3847 transitions. [2021-01-06 19:31:24,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:24,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3847 transitions. [2021-01-06 19:31:24,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:24,066 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:24,067 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] [2021-01-06 19:31:24,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 19:31:24,067 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:24,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:24,068 INFO L82 PathProgramCache]: Analyzing trace with hash 902286813, now seen corresponding path program 1 times [2021-01-06 19:31:24,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:24,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326985537] [2021-01-06 19:31:24,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:24,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:24,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326985537] [2021-01-06 19:31:24,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:24,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:24,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136752181] [2021-01-06 19:31:24,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:24,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:24,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:24,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:24,132 INFO L87 Difference]: Start difference. First operand 2664 states and 3847 transitions. Second operand 4 states. [2021-01-06 19:31:24,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:24,614 INFO L93 Difference]: Finished difference Result 6408 states and 9247 transitions. [2021-01-06 19:31:24,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:24,615 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:24,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:24,623 INFO L225 Difference]: With dead ends: 6408 [2021-01-06 19:31:24,623 INFO L226 Difference]: Without dead ends: 3779 [2021-01-06 19:31:24,628 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 [2021-01-06 19:31:24,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2021-01-06 19:31:24,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 2664. [2021-01-06 19:31:24,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:24,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3844 transitions. [2021-01-06 19:31:24,825 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3844 transitions. Word has length 157 [2021-01-06 19:31:24,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:24,826 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3844 transitions. [2021-01-06 19:31:24,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:24,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3844 transitions. [2021-01-06 19:31:24,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:24,827 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:24,827 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] [2021-01-06 19:31:24,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-06 19:31:24,828 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:24,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:24,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1764120415, now seen corresponding path program 1 times [2021-01-06 19:31:24,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:24,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808031124] [2021-01-06 19:31:24,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:24,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:24,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808031124] [2021-01-06 19:31:24,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:24,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:24,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84211580] [2021-01-06 19:31:24,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:24,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:24,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:24,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:24,887 INFO L87 Difference]: Start difference. First operand 2664 states and 3844 transitions. Second operand 4 states. [2021-01-06 19:31:25,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:25,347 INFO L93 Difference]: Finished difference Result 6406 states and 9237 transitions. [2021-01-06 19:31:25,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:25,348 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:25,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:25,354 INFO L225 Difference]: With dead ends: 6406 [2021-01-06 19:31:25,354 INFO L226 Difference]: Without dead ends: 3778 [2021-01-06 19:31:25,359 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 [2021-01-06 19:31:25,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2021-01-06 19:31:25,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 2664. [2021-01-06 19:31:25,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:25,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3841 transitions. [2021-01-06 19:31:25,603 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3841 transitions. Word has length 157 [2021-01-06 19:31:25,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:25,603 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3841 transitions. [2021-01-06 19:31:25,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:25,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3841 transitions. [2021-01-06 19:31:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:25,604 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:25,605 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] [2021-01-06 19:31:25,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-06 19:31:25,605 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:25,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:25,605 INFO L82 PathProgramCache]: Analyzing trace with hash -286288483, now seen corresponding path program 1 times [2021-01-06 19:31:25,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:25,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519266981] [2021-01-06 19:31:25,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:25,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:25,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519266981] [2021-01-06 19:31:25,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:25,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:25,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651850713] [2021-01-06 19:31:25,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:25,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:25,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:25,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:25,675 INFO L87 Difference]: Start difference. First operand 2664 states and 3841 transitions. Second operand 4 states. [2021-01-06 19:31:26,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:26,098 INFO L93 Difference]: Finished difference Result 6402 states and 9223 transitions. [2021-01-06 19:31:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:26,098 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:26,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:26,105 INFO L225 Difference]: With dead ends: 6402 [2021-01-06 19:31:26,105 INFO L226 Difference]: Without dead ends: 3776 [2021-01-06 19:31:26,112 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 [2021-01-06 19:31:26,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2021-01-06 19:31:26,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 2664. [2021-01-06 19:31:26,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2021-01-06 19:31:26,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3838 transitions. [2021-01-06 19:31:26,394 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3838 transitions. Word has length 157 [2021-01-06 19:31:26,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:26,395 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 3838 transitions. [2021-01-06 19:31:26,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:26,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3838 transitions. [2021-01-06 19:31:26,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:26,397 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:26,397 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] [2021-01-06 19:31:26,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-06 19:31:26,398 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:26,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:26,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1378923685, now seen corresponding path program 1 times [2021-01-06 19:31:26,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:26,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062869820] [2021-01-06 19:31:26,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:26,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062869820] [2021-01-06 19:31:26,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:26,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:31:26,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395536581] [2021-01-06 19:31:26,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:31:26,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:26,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:31:26,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:31:26,499 INFO L87 Difference]: Start difference. First operand 2664 states and 3838 transitions. Second operand 5 states. [2021-01-06 19:31:27,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:27,248 INFO L93 Difference]: Finished difference Result 8188 states and 11860 transitions. [2021-01-06 19:31:27,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:31:27,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2021-01-06 19:31:27,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:27,257 INFO L225 Difference]: With dead ends: 8188 [2021-01-06 19:31:27,257 INFO L226 Difference]: Without dead ends: 5569 [2021-01-06 19:31:27,263 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 [2021-01-06 19:31:27,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2021-01-06 19:31:27,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 2703. [2021-01-06 19:31:27,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2703 states. [2021-01-06 19:31:27,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2703 states to 2703 states and 3864 transitions. [2021-01-06 19:31:27,529 INFO L78 Accepts]: Start accepts. Automaton has 2703 states and 3864 transitions. Word has length 157 [2021-01-06 19:31:27,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:27,529 INFO L481 AbstractCegarLoop]: Abstraction has 2703 states and 3864 transitions. [2021-01-06 19:31:27,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:31:27,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2703 states and 3864 transitions. [2021-01-06 19:31:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:27,530 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:27,531 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] [2021-01-06 19:31:27,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-06 19:31:27,532 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:27,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:27,533 INFO L82 PathProgramCache]: Analyzing trace with hash 622962585, now seen corresponding path program 1 times [2021-01-06 19:31:27,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:27,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677497101] [2021-01-06 19:31:27,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:27,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:27,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677497101] [2021-01-06 19:31:27,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:27,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:27,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696922245] [2021-01-06 19:31:27,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:27,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:27,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:27,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:27,631 INFO L87 Difference]: Start difference. First operand 2703 states and 3864 transitions. Second operand 4 states. [2021-01-06 19:31:28,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:28,447 INFO L93 Difference]: Finished difference Result 10179 states and 14538 transitions. [2021-01-06 19:31:28,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:28,448 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:28,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:28,455 INFO L225 Difference]: With dead ends: 10179 [2021-01-06 19:31:28,455 INFO L226 Difference]: Without dead ends: 7516 [2021-01-06 19:31:28,461 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 [2021-01-06 19:31:28,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7516 states. [2021-01-06 19:31:28,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7516 to 7184. [2021-01-06 19:31:28,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7184 states. [2021-01-06 19:31:28,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7184 states to 7184 states and 10199 transitions. [2021-01-06 19:31:28,975 INFO L78 Accepts]: Start accepts. Automaton has 7184 states and 10199 transitions. Word has length 157 [2021-01-06 19:31:28,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:28,975 INFO L481 AbstractCegarLoop]: Abstraction has 7184 states and 10199 transitions. [2021-01-06 19:31:28,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:28,976 INFO L276 IsEmpty]: Start isEmpty. Operand 7184 states and 10199 transitions. [2021-01-06 19:31:28,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:28,977 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:28,977 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] [2021-01-06 19:31:28,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-06 19:31:28,977 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:28,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:28,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1625588280, now seen corresponding path program 1 times [2021-01-06 19:31:28,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:28,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774688872] [2021-01-06 19:31:28,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:29,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:29,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774688872] [2021-01-06 19:31:29,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:29,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:31:29,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700119327] [2021-01-06 19:31:29,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:31:29,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:29,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:31:29,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:31:29,043 INFO L87 Difference]: Start difference. First operand 7184 states and 10199 transitions. Second operand 5 states. [2021-01-06 19:31:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:30,278 INFO L93 Difference]: Finished difference Result 18995 states and 27033 transitions. [2021-01-06 19:31:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:31:30,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2021-01-06 19:31:30,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:30,291 INFO L225 Difference]: With dead ends: 18995 [2021-01-06 19:31:30,291 INFO L226 Difference]: Without dead ends: 11861 [2021-01-06 19:31:30,301 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 [2021-01-06 19:31:30,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11861 states. [2021-01-06 19:31:31,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11861 to 7259. [2021-01-06 19:31:31,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7259 states. [2021-01-06 19:31:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7259 states to 7259 states and 10229 transitions. [2021-01-06 19:31:31,069 INFO L78 Accepts]: Start accepts. Automaton has 7259 states and 10229 transitions. Word has length 157 [2021-01-06 19:31:31,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:31,070 INFO L481 AbstractCegarLoop]: Abstraction has 7259 states and 10229 transitions. [2021-01-06 19:31:31,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:31:31,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7259 states and 10229 transitions. [2021-01-06 19:31:31,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:31,072 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:31,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:31:31,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-06 19:31:31,072 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:31,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:31,073 INFO L82 PathProgramCache]: Analyzing trace with hash -347577098, now seen corresponding path program 1 times [2021-01-06 19:31:31,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:31,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127947310] [2021-01-06 19:31:31,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:31,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:31,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127947310] [2021-01-06 19:31:31,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:31,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:31:31,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788948337] [2021-01-06 19:31:31,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:31:31,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:31,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:31:31,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:31:31,159 INFO L87 Difference]: Start difference. First operand 7259 states and 10229 transitions. Second operand 5 states. [2021-01-06 19:31:32,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:32,838 INFO L93 Difference]: Finished difference Result 27194 states and 38509 transitions. [2021-01-06 19:31:32,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:31:32,839 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2021-01-06 19:31:32,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:32,860 INFO L225 Difference]: With dead ends: 27194 [2021-01-06 19:31:32,860 INFO L226 Difference]: Without dead ends: 19992 [2021-01-06 19:31:32,868 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 [2021-01-06 19:31:32,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19992 states. [2021-01-06 19:31:33,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19992 to 7469. [2021-01-06 19:31:33,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7469 states. [2021-01-06 19:31:33,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7469 states to 7469 states and 10439 transitions. [2021-01-06 19:31:33,543 INFO L78 Accepts]: Start accepts. Automaton has 7469 states and 10439 transitions. Word has length 157 [2021-01-06 19:31:33,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:33,544 INFO L481 AbstractCegarLoop]: Abstraction has 7469 states and 10439 transitions. [2021-01-06 19:31:33,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:31:33,544 INFO L276 IsEmpty]: Start isEmpty. Operand 7469 states and 10439 transitions. [2021-01-06 19:31:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:33,545 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:33,545 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] [2021-01-06 19:31:33,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-01-06 19:31:33,546 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:33,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:33,546 INFO L82 PathProgramCache]: Analyzing trace with hash 2080681524, now seen corresponding path program 1 times [2021-01-06 19:31:33,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:33,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633553444] [2021-01-06 19:31:33,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:33,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:33,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633553444] [2021-01-06 19:31:33,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:33,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:33,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697361078] [2021-01-06 19:31:33,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:33,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:33,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:33,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:33,606 INFO L87 Difference]: Start difference. First operand 7469 states and 10439 transitions. Second operand 4 states. [2021-01-06 19:31:35,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:35,476 INFO L93 Difference]: Finished difference Result 28580 states and 39916 transitions. [2021-01-06 19:31:35,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:35,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:35,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:35,500 INFO L225 Difference]: With dead ends: 28580 [2021-01-06 19:31:35,500 INFO L226 Difference]: Without dead ends: 21173 [2021-01-06 19:31:35,509 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 [2021-01-06 19:31:35,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21173 states. [2021-01-06 19:31:37,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21173 to 20399. [2021-01-06 19:31:37,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20399 states. [2021-01-06 19:31:37,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20399 states to 20399 states and 28323 transitions. [2021-01-06 19:31:37,056 INFO L78 Accepts]: Start accepts. Automaton has 20399 states and 28323 transitions. Word has length 157 [2021-01-06 19:31:37,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:37,056 INFO L481 AbstractCegarLoop]: Abstraction has 20399 states and 28323 transitions. [2021-01-06 19:31:37,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:37,057 INFO L276 IsEmpty]: Start isEmpty. Operand 20399 states and 28323 transitions. [2021-01-06 19:31:37,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:37,058 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:37,058 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] [2021-01-06 19:31:37,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-01-06 19:31:37,059 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:37,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:37,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1077624659, now seen corresponding path program 1 times [2021-01-06 19:31:37,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:37,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437665918] [2021-01-06 19:31:37,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:37,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:37,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437665918] [2021-01-06 19:31:37,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:37,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:31:37,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988450929] [2021-01-06 19:31:37,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:31:37,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:37,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:31:37,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:31:37,129 INFO L87 Difference]: Start difference. First operand 20399 states and 28323 transitions. Second operand 5 states. [2021-01-06 19:31:39,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:39,777 INFO L93 Difference]: Finished difference Result 53014 states and 73944 transitions. [2021-01-06 19:31:39,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:31:39,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2021-01-06 19:31:39,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:39,812 INFO L225 Difference]: With dead ends: 53014 [2021-01-06 19:31:39,813 INFO L226 Difference]: Without dead ends: 32681 [2021-01-06 19:31:39,829 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 [2021-01-06 19:31:39,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32681 states. [2021-01-06 19:31:42,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32681 to 20606. [2021-01-06 19:31:42,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20606 states. [2021-01-06 19:31:42,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20606 states to 20606 states and 28407 transitions. [2021-01-06 19:31:42,036 INFO L78 Accepts]: Start accepts. Automaton has 20606 states and 28407 transitions. Word has length 157 [2021-01-06 19:31:42,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:42,036 INFO L481 AbstractCegarLoop]: Abstraction has 20606 states and 28407 transitions. [2021-01-06 19:31:42,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:31:42,036 INFO L276 IsEmpty]: Start isEmpty. Operand 20606 states and 28407 transitions. [2021-01-06 19:31:42,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:42,038 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:42,038 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] [2021-01-06 19:31:42,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-01-06 19:31:42,039 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:42,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:42,039 INFO L82 PathProgramCache]: Analyzing trace with hash 20893457, now seen corresponding path program 1 times [2021-01-06 19:31:42,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:42,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358544784] [2021-01-06 19:31:42,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:42,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:42,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358544784] [2021-01-06 19:31:42,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:42,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:31:42,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982866275] [2021-01-06 19:31:42,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:31:42,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:42,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:31:42,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:31:42,102 INFO L87 Difference]: Start difference. First operand 20606 states and 28407 transitions. Second operand 5 states. [2021-01-06 19:31:44,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:44,485 INFO L93 Difference]: Finished difference Result 45870 states and 63028 transitions. [2021-01-06 19:31:44,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:31:44,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2021-01-06 19:31:44,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:44,511 INFO L225 Difference]: With dead ends: 45870 [2021-01-06 19:31:44,511 INFO L226 Difference]: Without dead ends: 25337 [2021-01-06 19:31:44,532 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 [2021-01-06 19:31:44,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25337 states. [2021-01-06 19:31:46,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25337 to 20624. [2021-01-06 19:31:46,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20624 states. [2021-01-06 19:31:46,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20624 states to 20624 states and 28239 transitions. [2021-01-06 19:31:46,703 INFO L78 Accepts]: Start accepts. Automaton has 20624 states and 28239 transitions. Word has length 157 [2021-01-06 19:31:46,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:46,703 INFO L481 AbstractCegarLoop]: Abstraction has 20624 states and 28239 transitions. [2021-01-06 19:31:46,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:31:46,704 INFO L276 IsEmpty]: Start isEmpty. Operand 20624 states and 28239 transitions. [2021-01-06 19:31:46,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:46,705 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:46,705 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] [2021-01-06 19:31:46,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-01-06 19:31:46,706 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:46,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:46,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1897956687, now seen corresponding path program 1 times [2021-01-06 19:31:46,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:46,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900759916] [2021-01-06 19:31:46,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:46,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:46,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900759916] [2021-01-06 19:31:46,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:46,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:31:46,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166853549] [2021-01-06 19:31:46,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:31:46,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:46,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:31:46,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:31:46,773 INFO L87 Difference]: Start difference. First operand 20624 states and 28239 transitions. Second operand 4 states. [2021-01-06 19:31:51,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:31:51,947 INFO L93 Difference]: Finished difference Result 79218 states and 108455 transitions. [2021-01-06 19:31:51,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:31:51,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:31:51,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:31:52,010 INFO L225 Difference]: With dead ends: 79218 [2021-01-06 19:31:52,010 INFO L226 Difference]: Without dead ends: 58669 [2021-01-06 19:31:52,027 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 [2021-01-06 19:31:52,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58669 states. [2021-01-06 19:31:57,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58669 to 56947. [2021-01-06 19:31:57,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56947 states. [2021-01-06 19:31:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56947 states to 56947 states and 77534 transitions. [2021-01-06 19:31:57,432 INFO L78 Accepts]: Start accepts. Automaton has 56947 states and 77534 transitions. Word has length 157 [2021-01-06 19:31:57,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:31:57,433 INFO L481 AbstractCegarLoop]: Abstraction has 56947 states and 77534 transitions. [2021-01-06 19:31:57,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:31:57,433 INFO L276 IsEmpty]: Start isEmpty. Operand 56947 states and 77534 transitions. [2021-01-06 19:31:57,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:31:57,434 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:31:57,434 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] [2021-01-06 19:31:57,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-01-06 19:31:57,434 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:31:57,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:31:57,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1194816274, now seen corresponding path program 1 times [2021-01-06 19:31:57,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:31:57,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721214973] [2021-01-06 19:31:57,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:31:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:31:57,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:31:57,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721214973] [2021-01-06 19:31:57,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:31:57,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:31:57,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264241817] [2021-01-06 19:31:57,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:31:57,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:31:57,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:31:57,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:31:57,496 INFO L87 Difference]: Start difference. First operand 56947 states and 77534 transitions. Second operand 5 states. [2021-01-06 19:32:05,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:32:05,789 INFO L93 Difference]: Finished difference Result 145557 states and 199502 transitions. [2021-01-06 19:32:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:32:05,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2021-01-06 19:32:05,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:32:05,883 INFO L225 Difference]: With dead ends: 145557 [2021-01-06 19:32:05,883 INFO L226 Difference]: Without dead ends: 88689 [2021-01-06 19:32:05,922 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 [2021-01-06 19:32:05,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88689 states. [2021-01-06 19:32:11,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88689 to 57520. [2021-01-06 19:32:11,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57520 states. [2021-01-06 19:32:11,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57520 states to 57520 states and 77768 transitions. [2021-01-06 19:32:11,939 INFO L78 Accepts]: Start accepts. Automaton has 57520 states and 77768 transitions. Word has length 157 [2021-01-06 19:32:11,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:32:11,939 INFO L481 AbstractCegarLoop]: Abstraction has 57520 states and 77768 transitions. [2021-01-06 19:32:11,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:32:11,939 INFO L276 IsEmpty]: Start isEmpty. Operand 57520 states and 77768 transitions. [2021-01-06 19:32:11,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:32:11,940 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:32:11,940 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] [2021-01-06 19:32:11,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-01-06 19:32:11,941 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:32:11,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:32:11,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1221020076, now seen corresponding path program 1 times [2021-01-06 19:32:11,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:32:11,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043205581] [2021-01-06 19:32:11,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:32:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:32:12,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:32:12,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043205581] [2021-01-06 19:32:12,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:32:12,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:32:12,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880200138] [2021-01-06 19:32:12,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:32:12,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:32:12,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:32:12,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:32:12,006 INFO L87 Difference]: Start difference. First operand 57520 states and 77768 transitions. Second operand 3 states. [2021-01-06 19:32:22,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:32:22,486 INFO L93 Difference]: Finished difference Result 167067 states and 225884 transitions. [2021-01-06 19:32:22,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:32:22,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2021-01-06 19:32:22,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:32:22,613 INFO L225 Difference]: With dead ends: 167067 [2021-01-06 19:32:22,613 INFO L226 Difference]: Without dead ends: 109628 [2021-01-06 19:32:22,850 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 [2021-01-06 19:32:22,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109628 states. [2021-01-06 19:32:33,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109628 to 109518. [2021-01-06 19:32:33,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109518 states. [2021-01-06 19:32:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109518 states to 109518 states and 147576 transitions. [2021-01-06 19:32:33,384 INFO L78 Accepts]: Start accepts. Automaton has 109518 states and 147576 transitions. Word has length 157 [2021-01-06 19:32:33,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:32:33,385 INFO L481 AbstractCegarLoop]: Abstraction has 109518 states and 147576 transitions. [2021-01-06 19:32:33,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:32:33,385 INFO L276 IsEmpty]: Start isEmpty. Operand 109518 states and 147576 transitions. [2021-01-06 19:32:33,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:32:33,387 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:32:33,387 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] [2021-01-06 19:32:33,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-01-06 19:32:33,387 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:32:33,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:32:33,388 INFO L82 PathProgramCache]: Analyzing trace with hash -763808629, now seen corresponding path program 1 times [2021-01-06 19:32:33,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:32:33,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375611208] [2021-01-06 19:32:33,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:32:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:32:33,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:32:33,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375611208] [2021-01-06 19:32:33,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:32:33,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:32:33,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436626010] [2021-01-06 19:32:33,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:32:33,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:32:33,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:32:33,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:32:33,449 INFO L87 Difference]: Start difference. First operand 109518 states and 147576 transitions. Second operand 5 states. [2021-01-06 19:32:52,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:32:52,065 INFO L93 Difference]: Finished difference Result 304441 states and 414057 transitions. [2021-01-06 19:32:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:32:52,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2021-01-06 19:32:52,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:32:52,482 INFO L225 Difference]: With dead ends: 304441 [2021-01-06 19:32:52,482 INFO L226 Difference]: Without dead ends: 195008 [2021-01-06 19:32:52,560 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 [2021-01-06 19:32:52,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195008 states. [2021-01-06 19:33:04,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195008 to 111105. [2021-01-06 19:33:04,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111105 states. [2021-01-06 19:33:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111105 states to 111105 states and 148687 transitions. [2021-01-06 19:33:04,299 INFO L78 Accepts]: Start accepts. Automaton has 111105 states and 148687 transitions. Word has length 157 [2021-01-06 19:33:04,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:04,300 INFO L481 AbstractCegarLoop]: Abstraction has 111105 states and 148687 transitions. [2021-01-06 19:33:04,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:33:04,300 INFO L276 IsEmpty]: Start isEmpty. Operand 111105 states and 148687 transitions. [2021-01-06 19:33:04,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-06 19:33:04,302 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:04,302 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] [2021-01-06 19:33:04,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-01-06 19:33:04,302 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:04,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:04,303 INFO L82 PathProgramCache]: Analyzing trace with hash 75225033, now seen corresponding path program 1 times [2021-01-06 19:33:04,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:04,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698646690] [2021-01-06 19:33:04,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:04,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:04,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698646690] [2021-01-06 19:33:04,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:04,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:04,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552005283] [2021-01-06 19:33:04,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:04,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:04,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:04,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:04,628 INFO L87 Difference]: Start difference. First operand 111105 states and 148687 transitions. Second operand 4 states. [2021-01-06 19:33:35,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:35,560 INFO L93 Difference]: Finished difference Result 424887 states and 568861 transitions. [2021-01-06 19:33:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:35,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2021-01-06 19:33:35,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:36,164 INFO L225 Difference]: With dead ends: 424887 [2021-01-06 19:33:36,164 INFO L226 Difference]: Without dead ends: 313876 [2021-01-06 19:33:36,315 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 [2021-01-06 19:33:36,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313876 states.