/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.13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 09:37:56,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 09:37:56,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 09:37:56,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 09:37:56,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 09:37:56,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 09:37:56,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 09:37:56,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 09:37:56,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 09:37:56,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 09:37:56,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 09:37:56,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 09:37:56,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 09:37:56,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 09:37:56,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 09:37:56,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 09:37:56,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 09:37:56,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 09:37:56,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 09:37:56,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 09:37:56,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 09:37:56,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 09:37:56,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 09:37:56,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 09:37:56,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 09:37:56,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 09:37:56,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 09:37:56,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 09:37:56,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 09:37:56,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 09:37:56,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 09:37:56,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 09:37:56,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 09:37:56,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 09:37:56,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 09:37:56,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 09:37:56,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 09:37:56,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 09:37:56,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 09:37:56,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 09:37:56,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 09:37:56,420 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 09:37:56,449 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 09:37:56,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 09:37:56,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 09:37:56,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 09:37:56,452 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 09:37:56,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 09:37:56,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 09:37:56,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 09:37:56,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 09:37:56,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 09:37:56,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 09:37:56,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 09:37:56,454 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 09:37:56,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 09:37:56,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 09:37:56,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 09:37:56,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 09:37:56,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:37:56,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 09:37:56,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 09:37:56,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 09:37:56,456 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 09:37:56,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 09:37:56,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 09:37:56,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 09:37:56,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 09:37:56,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 09:37:56,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 09:37:56,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 09:37:56,892 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 09:37:56,893 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 09:37:56,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.13.cil.c [2020-12-23 09:37:56,992 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f22938d4a/f1aadd1646a44bffa3872e42d6374319/FLAGa36b93986 [2020-12-23 09:37:57,684 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 09:37:57,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.13.cil.c [2020-12-23 09:37:57,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f22938d4a/f1aadd1646a44bffa3872e42d6374319/FLAGa36b93986 [2020-12-23 09:37:58,002 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f22938d4a/f1aadd1646a44bffa3872e42d6374319 [2020-12-23 09:37:58,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 09:37:58,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 09:37:58,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 09:37:58,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 09:37:58,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 09:37:58,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:37:58" (1/1) ... [2020-12-23 09:37:58,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d0fb051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58, skipping insertion in model container [2020-12-23 09:37:58,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:37:58" (1/1) ... [2020-12-23 09:37:58,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 09:37:58,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 09:37:58,271 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.13.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[~E_12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t12_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t12_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_13~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_13~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t13_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t13_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[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~13,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~13,] 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[~t12_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t12_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t13_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t13_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] 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[~tmp_ndt_13~0,] left hand side expression in assignment: lhs: VariableLHS[~t12_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_14~0,] left hand side expression in assignment: lhs: VariableLHS[~t13_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[~T12_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T13_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[~E_12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_13~0,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[~T12_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T13_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[~E_12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_13~0,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[~tmp___11~0,] left hand side expression in assignment: lhs: VariableLHS[~t12_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___12~0,] left hand side expression in assignment: lhs: VariableLHS[~t13_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[~T12_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T13_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[~E_12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_13~0,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[~t12_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t13_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[~__retres1~15,] [2020-12-23 09:37:58,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:37:58,529 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 09:37:58,545 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.13.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[~E_12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t12_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t12_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_13~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_13~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t13_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t13_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[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~12,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~13,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~13,] 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[~t12_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t12_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t13_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t13_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~14,] 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[~tmp_ndt_13~0,] left hand side expression in assignment: lhs: VariableLHS[~t12_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp_ndt_14~0,] left hand side expression in assignment: lhs: VariableLHS[~t13_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[~T12_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T13_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[~E_12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_13~0,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[~T12_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T13_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[~E_12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_13~0,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[~tmp___11~0,] left hand side expression in assignment: lhs: VariableLHS[~t12_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp___12~0,] left hand side expression in assignment: lhs: VariableLHS[~t13_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[~T12_E~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~T13_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[~E_12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_13~0,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[~t12_i~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t13_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[~__retres1~15,] [2020-12-23 09:37:58,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:37:58,758 INFO L208 MainTranslator]: Completed translation [2020-12-23 09:37:58,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58 WrapperNode [2020-12-23 09:37:58,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 09:37:58,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 09:37:58,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 09:37:58,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 09:37:58,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58" (1/1) ... [2020-12-23 09:37:58,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58" (1/1) ... [2020-12-23 09:37:59,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 09:37:59,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 09:37:59,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 09:37:59,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 09:37:59,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58" (1/1) ... [2020-12-23 09:37:59,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58" (1/1) ... [2020-12-23 09:37:59,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58" (1/1) ... [2020-12-23 09:37:59,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58" (1/1) ... [2020-12-23 09:37:59,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58" (1/1) ... [2020-12-23 09:37:59,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58" (1/1) ... [2020-12-23 09:37:59,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58" (1/1) ... [2020-12-23 09:37:59,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 09:37:59,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 09:37:59,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 09:37:59,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 09:37:59,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:37:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 09:37:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 09:37:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 09:37:59,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 09:38:02,919 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 09:38:02,919 INFO L299 CfgBuilder]: Removed 589 assume(true) statements. [2020-12-23 09:38:02,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:38:02 BoogieIcfgContainer [2020-12-23 09:38:02,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 09:38:02,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 09:38:02,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 09:38:02,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 09:38:02,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:37:58" (1/3) ... [2020-12-23 09:38:02,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390ff793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:38:02, skipping insertion in model container [2020-12-23 09:38:02,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:37:58" (2/3) ... [2020-12-23 09:38:02,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390ff793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:38:02, skipping insertion in model container [2020-12-23 09:38:02,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:38:02" (3/3) ... [2020-12-23 09:38:02,934 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.13.cil.c [2020-12-23 09:38:02,942 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 09:38:02,948 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 09:38:02,970 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 09:38:03,011 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 09:38:03,011 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 09:38:03,011 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 09:38:03,011 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 09:38:03,012 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 09:38:03,012 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 09:38:03,012 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 09:38:03,012 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 09:38:03,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states. [2020-12-23 09:38:03,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:03,082 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:03,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:03,084 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:03,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:03,093 INFO L82 PathProgramCache]: Analyzing trace with hash 257259996, now seen corresponding path program 1 times [2020-12-23 09:38:03,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:03,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428400123] [2020-12-23 09:38:03,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:03,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428400123] [2020-12-23 09:38:03,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:03,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:03,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049290934] [2020-12-23 09:38:03,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:03,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:03,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:03,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:03,532 INFO L87 Difference]: Start difference. First operand 1886 states. Second operand 3 states. [2020-12-23 09:38:03,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:03,766 INFO L93 Difference]: Finished difference Result 3767 states and 5677 transitions. [2020-12-23 09:38:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:03,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:03,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:03,828 INFO L225 Difference]: With dead ends: 3767 [2020-12-23 09:38:03,828 INFO L226 Difference]: Without dead ends: 1882 [2020-12-23 09:38:03,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:03,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2020-12-23 09:38:04,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1882. [2020-12-23 09:38:04,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1882 states. [2020-12-23 09:38:04,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2802 transitions. [2020-12-23 09:38:04,034 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2802 transitions. Word has length 181 [2020-12-23 09:38:04,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:04,035 INFO L481 AbstractCegarLoop]: Abstraction has 1882 states and 2802 transitions. [2020-12-23 09:38:04,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:04,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2802 transitions. [2020-12-23 09:38:04,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:04,047 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:04,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:04,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 09:38:04,049 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:04,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:04,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1341889062, now seen corresponding path program 1 times [2020-12-23 09:38:04,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:04,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612298575] [2020-12-23 09:38:04,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:04,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612298575] [2020-12-23 09:38:04,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:04,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:04,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63277793] [2020-12-23 09:38:04,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:04,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:04,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:04,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:04,278 INFO L87 Difference]: Start difference. First operand 1882 states and 2802 transitions. Second operand 3 states. [2020-12-23 09:38:04,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:04,406 INFO L93 Difference]: Finished difference Result 3751 states and 5582 transitions. [2020-12-23 09:38:04,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:04,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:04,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:04,417 INFO L225 Difference]: With dead ends: 3751 [2020-12-23 09:38:04,417 INFO L226 Difference]: Without dead ends: 1882 [2020-12-23 09:38:04,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:04,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2020-12-23 09:38:04,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1882. [2020-12-23 09:38:04,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1882 states. [2020-12-23 09:38:04,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2801 transitions. [2020-12-23 09:38:04,506 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2801 transitions. Word has length 181 [2020-12-23 09:38:04,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:04,509 INFO L481 AbstractCegarLoop]: Abstraction has 1882 states and 2801 transitions. [2020-12-23 09:38:04,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:04,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2801 transitions. [2020-12-23 09:38:04,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:04,513 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:04,513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:04,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 09:38:04,514 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:04,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:04,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1431949352, now seen corresponding path program 1 times [2020-12-23 09:38:04,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:04,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373257036] [2020-12-23 09:38:04,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:04,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:04,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373257036] [2020-12-23 09:38:04,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:04,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:04,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020996550] [2020-12-23 09:38:04,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:04,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:04,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:04,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:04,662 INFO L87 Difference]: Start difference. First operand 1882 states and 2801 transitions. Second operand 3 states. [2020-12-23 09:38:05,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:05,024 INFO L93 Difference]: Finished difference Result 5360 states and 7953 transitions. [2020-12-23 09:38:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:05,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:05,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:05,050 INFO L225 Difference]: With dead ends: 5360 [2020-12-23 09:38:05,050 INFO L226 Difference]: Without dead ends: 3496 [2020-12-23 09:38:05,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:05,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3496 states. [2020-12-23 09:38:05,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3496 to 3494. [2020-12-23 09:38:05,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:05,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5163 transitions. [2020-12-23 09:38:05,298 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5163 transitions. Word has length 181 [2020-12-23 09:38:05,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:05,305 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5163 transitions. [2020-12-23 09:38:05,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:05,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5163 transitions. [2020-12-23 09:38:05,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:05,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:05,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:05,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 09:38:05,310 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:05,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:05,311 INFO L82 PathProgramCache]: Analyzing trace with hash 799330615, now seen corresponding path program 1 times [2020-12-23 09:38:05,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:05,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230836331] [2020-12-23 09:38:05,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:05,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:05,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230836331] [2020-12-23 09:38:05,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:05,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:05,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599931870] [2020-12-23 09:38:05,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:05,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:05,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:05,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:05,495 INFO L87 Difference]: Start difference. First operand 3494 states and 5163 transitions. Second operand 4 states. [2020-12-23 09:38:05,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:05,929 INFO L93 Difference]: Finished difference Result 8582 states and 12658 transitions. [2020-12-23 09:38:05,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:05,929 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:05,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:05,956 INFO L225 Difference]: With dead ends: 8582 [2020-12-23 09:38:05,957 INFO L226 Difference]: Without dead ends: 5107 [2020-12-23 09:38:05,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:05,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5107 states. [2020-12-23 09:38:06,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5107 to 3494. [2020-12-23 09:38:06,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:06,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5160 transitions. [2020-12-23 09:38:06,154 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5160 transitions. Word has length 181 [2020-12-23 09:38:06,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:06,154 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5160 transitions. [2020-12-23 09:38:06,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:06,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5160 transitions. [2020-12-23 09:38:06,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:06,157 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:06,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:06,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 09:38:06,157 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:06,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:06,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1297887417, now seen corresponding path program 1 times [2020-12-23 09:38:06,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:06,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855428282] [2020-12-23 09:38:06,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:06,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:06,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855428282] [2020-12-23 09:38:06,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:06,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:06,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772002431] [2020-12-23 09:38:06,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:06,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:06,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:06,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:06,291 INFO L87 Difference]: Start difference. First operand 3494 states and 5160 transitions. Second operand 4 states. [2020-12-23 09:38:06,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:06,809 INFO L93 Difference]: Finished difference Result 8580 states and 12648 transitions. [2020-12-23 09:38:06,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:06,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:06,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:06,843 INFO L225 Difference]: With dead ends: 8580 [2020-12-23 09:38:06,843 INFO L226 Difference]: Without dead ends: 5106 [2020-12-23 09:38:06,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:06,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5106 states. [2020-12-23 09:38:07,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5106 to 3494. [2020-12-23 09:38:07,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:07,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5157 transitions. [2020-12-23 09:38:07,100 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5157 transitions. Word has length 181 [2020-12-23 09:38:07,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:07,101 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5157 transitions. [2020-12-23 09:38:07,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:07,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5157 transitions. [2020-12-23 09:38:07,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:07,104 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:07,104 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:07,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 09:38:07,104 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:07,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:07,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1868159223, now seen corresponding path program 1 times [2020-12-23 09:38:07,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:07,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060845759] [2020-12-23 09:38:07,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:07,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:07,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060845759] [2020-12-23 09:38:07,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:07,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:07,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97034735] [2020-12-23 09:38:07,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:07,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:07,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:07,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:07,188 INFO L87 Difference]: Start difference. First operand 3494 states and 5157 transitions. Second operand 3 states. [2020-12-23 09:38:07,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:07,400 INFO L93 Difference]: Finished difference Result 6966 states and 10278 transitions. [2020-12-23 09:38:07,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:07,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:07,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:07,421 INFO L225 Difference]: With dead ends: 6966 [2020-12-23 09:38:07,421 INFO L226 Difference]: Without dead ends: 3494 [2020-12-23 09:38:07,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:07,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-12-23 09:38:07,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2020-12-23 09:38:07,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:07,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5149 transitions. [2020-12-23 09:38:07,677 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5149 transitions. Word has length 181 [2020-12-23 09:38:07,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:07,677 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5149 transitions. [2020-12-23 09:38:07,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:07,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5149 transitions. [2020-12-23 09:38:07,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:07,680 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:07,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:07,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 09:38:07,681 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:07,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:07,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1066642615, now seen corresponding path program 1 times [2020-12-23 09:38:07,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:07,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65162209] [2020-12-23 09:38:07,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:07,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:07,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65162209] [2020-12-23 09:38:07,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:07,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:07,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96961003] [2020-12-23 09:38:07,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:07,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:07,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:07,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:07,766 INFO L87 Difference]: Start difference. First operand 3494 states and 5149 transitions. Second operand 3 states. [2020-12-23 09:38:07,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:07,979 INFO L93 Difference]: Finished difference Result 6965 states and 10261 transitions. [2020-12-23 09:38:07,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:07,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:07,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:08,011 INFO L225 Difference]: With dead ends: 6965 [2020-12-23 09:38:08,012 INFO L226 Difference]: Without dead ends: 3494 [2020-12-23 09:38:08,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:08,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-12-23 09:38:08,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2020-12-23 09:38:08,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:08,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5141 transitions. [2020-12-23 09:38:08,271 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5141 transitions. Word has length 181 [2020-12-23 09:38:08,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:08,271 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5141 transitions. [2020-12-23 09:38:08,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:08,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5141 transitions. [2020-12-23 09:38:08,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:08,274 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:08,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:08,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 09:38:08,275 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:08,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:08,276 INFO L82 PathProgramCache]: Analyzing trace with hash -621780745, now seen corresponding path program 1 times [2020-12-23 09:38:08,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:08,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619712259] [2020-12-23 09:38:08,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:08,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:08,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619712259] [2020-12-23 09:38:08,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:08,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:08,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709702785] [2020-12-23 09:38:08,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:08,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:08,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:08,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:08,367 INFO L87 Difference]: Start difference. First operand 3494 states and 5141 transitions. Second operand 4 states. [2020-12-23 09:38:08,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:08,811 INFO L93 Difference]: Finished difference Result 8572 states and 12592 transitions. [2020-12-23 09:38:08,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:08,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:08,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:08,833 INFO L225 Difference]: With dead ends: 8572 [2020-12-23 09:38:08,833 INFO L226 Difference]: Without dead ends: 5102 [2020-12-23 09:38:08,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:08,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2020-12-23 09:38:09,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 3494. [2020-12-23 09:38:09,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:09,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5138 transitions. [2020-12-23 09:38:09,103 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5138 transitions. Word has length 181 [2020-12-23 09:38:09,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:09,104 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5138 transitions. [2020-12-23 09:38:09,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:09,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5138 transitions. [2020-12-23 09:38:09,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:09,107 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:09,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:09,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 09:38:09,108 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:09,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:09,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1477957685, now seen corresponding path program 1 times [2020-12-23 09:38:09,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:09,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760263497] [2020-12-23 09:38:09,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:09,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:09,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760263497] [2020-12-23 09:38:09,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:09,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:09,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966274444] [2020-12-23 09:38:09,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:09,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:09,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:09,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:09,196 INFO L87 Difference]: Start difference. First operand 3494 states and 5138 transitions. Second operand 3 states. [2020-12-23 09:38:09,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:09,389 INFO L93 Difference]: Finished difference Result 6963 states and 10237 transitions. [2020-12-23 09:38:09,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:09,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:09,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:09,400 INFO L225 Difference]: With dead ends: 6963 [2020-12-23 09:38:09,401 INFO L226 Difference]: Without dead ends: 3494 [2020-12-23 09:38:09,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:09,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-12-23 09:38:09,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2020-12-23 09:38:09,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:09,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5130 transitions. [2020-12-23 09:38:09,585 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5130 transitions. Word has length 181 [2020-12-23 09:38:09,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:09,589 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5130 transitions. [2020-12-23 09:38:09,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:09,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5130 transitions. [2020-12-23 09:38:09,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:09,592 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:09,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:09,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 09:38:09,593 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:09,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:09,593 INFO L82 PathProgramCache]: Analyzing trace with hash -543908747, now seen corresponding path program 1 times [2020-12-23 09:38:09,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:09,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365419523] [2020-12-23 09:38:09,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:09,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:09,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365419523] [2020-12-23 09:38:09,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:09,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:09,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873811304] [2020-12-23 09:38:09,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:09,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:09,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:09,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:09,714 INFO L87 Difference]: Start difference. First operand 3494 states and 5130 transitions. Second operand 3 states. [2020-12-23 09:38:09,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:09,946 INFO L93 Difference]: Finished difference Result 6962 states and 10220 transitions. [2020-12-23 09:38:09,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:09,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:09,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:09,956 INFO L225 Difference]: With dead ends: 6962 [2020-12-23 09:38:09,956 INFO L226 Difference]: Without dead ends: 3494 [2020-12-23 09:38:09,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:09,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-12-23 09:38:10,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2020-12-23 09:38:10,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:10,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5122 transitions. [2020-12-23 09:38:10,192 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5122 transitions. Word has length 181 [2020-12-23 09:38:10,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:10,192 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5122 transitions. [2020-12-23 09:38:10,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:10,193 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5122 transitions. [2020-12-23 09:38:10,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:10,196 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:10,196 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:10,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 09:38:10,197 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:10,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:10,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1330532405, now seen corresponding path program 1 times [2020-12-23 09:38:10,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:10,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144948928] [2020-12-23 09:38:10,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:10,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:10,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144948928] [2020-12-23 09:38:10,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:10,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:10,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024572158] [2020-12-23 09:38:10,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:10,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:10,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:10,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:10,293 INFO L87 Difference]: Start difference. First operand 3494 states and 5122 transitions. Second operand 3 states. [2020-12-23 09:38:10,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:10,506 INFO L93 Difference]: Finished difference Result 6961 states and 10203 transitions. [2020-12-23 09:38:10,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:10,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:10,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:10,517 INFO L225 Difference]: With dead ends: 6961 [2020-12-23 09:38:10,517 INFO L226 Difference]: Without dead ends: 3494 [2020-12-23 09:38:10,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:10,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-12-23 09:38:10,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2020-12-23 09:38:10,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:10,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5114 transitions. [2020-12-23 09:38:10,752 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5114 transitions. Word has length 181 [2020-12-23 09:38:10,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:10,753 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5114 transitions. [2020-12-23 09:38:10,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:10,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5114 transitions. [2020-12-23 09:38:10,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:10,756 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:10,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:10,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 09:38:10,757 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:10,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:10,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1806640245, now seen corresponding path program 1 times [2020-12-23 09:38:10,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:10,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823070489] [2020-12-23 09:38:10,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:10,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823070489] [2020-12-23 09:38:10,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:10,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:10,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102140882] [2020-12-23 09:38:10,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:10,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:10,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:10,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:10,825 INFO L87 Difference]: Start difference. First operand 3494 states and 5114 transitions. Second operand 3 states. [2020-12-23 09:38:11,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:11,010 INFO L93 Difference]: Finished difference Result 6960 states and 10186 transitions. [2020-12-23 09:38:11,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:11,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:11,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:11,019 INFO L225 Difference]: With dead ends: 6960 [2020-12-23 09:38:11,019 INFO L226 Difference]: Without dead ends: 3494 [2020-12-23 09:38:11,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:11,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-12-23 09:38:11,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2020-12-23 09:38:11,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:11,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5106 transitions. [2020-12-23 09:38:11,205 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5106 transitions. Word has length 181 [2020-12-23 09:38:11,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:11,205 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5106 transitions. [2020-12-23 09:38:11,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:11,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5106 transitions. [2020-12-23 09:38:11,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:11,208 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:11,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:11,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 09:38:11,209 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:11,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:11,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1195371187, now seen corresponding path program 1 times [2020-12-23 09:38:11,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:11,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092741496] [2020-12-23 09:38:11,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:11,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:11,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092741496] [2020-12-23 09:38:11,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:11,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:11,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385934441] [2020-12-23 09:38:11,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:11,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:11,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:11,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:11,275 INFO L87 Difference]: Start difference. First operand 3494 states and 5106 transitions. Second operand 3 states. [2020-12-23 09:38:11,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:11,467 INFO L93 Difference]: Finished difference Result 6958 states and 10167 transitions. [2020-12-23 09:38:11,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:11,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:11,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:11,477 INFO L225 Difference]: With dead ends: 6958 [2020-12-23 09:38:11,477 INFO L226 Difference]: Without dead ends: 3494 [2020-12-23 09:38:11,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:11,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-12-23 09:38:11,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2020-12-23 09:38:11,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:11,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5098 transitions. [2020-12-23 09:38:11,706 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5098 transitions. Word has length 181 [2020-12-23 09:38:11,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:11,706 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5098 transitions. [2020-12-23 09:38:11,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:11,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5098 transitions. [2020-12-23 09:38:11,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:11,709 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:11,709 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:11,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 09:38:11,710 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:11,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:11,710 INFO L82 PathProgramCache]: Analyzing trace with hash -781615501, now seen corresponding path program 1 times [2020-12-23 09:38:11,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:11,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419967590] [2020-12-23 09:38:11,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:11,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:11,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419967590] [2020-12-23 09:38:11,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:11,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:11,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692481372] [2020-12-23 09:38:11,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:11,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:11,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:11,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:11,778 INFO L87 Difference]: Start difference. First operand 3494 states and 5098 transitions. Second operand 3 states. [2020-12-23 09:38:11,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:11,976 INFO L93 Difference]: Finished difference Result 6957 states and 10150 transitions. [2020-12-23 09:38:11,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:11,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:11,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:11,987 INFO L225 Difference]: With dead ends: 6957 [2020-12-23 09:38:11,987 INFO L226 Difference]: Without dead ends: 3494 [2020-12-23 09:38:11,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:12,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-12-23 09:38:12,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2020-12-23 09:38:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:12,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5090 transitions. [2020-12-23 09:38:12,194 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5090 transitions. Word has length 181 [2020-12-23 09:38:12,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:12,194 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5090 transitions. [2020-12-23 09:38:12,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:12,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5090 transitions. [2020-12-23 09:38:12,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:12,198 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:12,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:12,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 09:38:12,198 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:12,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:12,199 INFO L82 PathProgramCache]: Analyzing trace with hash -706841933, now seen corresponding path program 1 times [2020-12-23 09:38:12,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:12,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70280572] [2020-12-23 09:38:12,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:12,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:12,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70280572] [2020-12-23 09:38:12,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:12,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:12,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074213477] [2020-12-23 09:38:12,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:12,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:12,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:12,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:12,272 INFO L87 Difference]: Start difference. First operand 3494 states and 5090 transitions. Second operand 4 states. [2020-12-23 09:38:12,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:12,812 INFO L93 Difference]: Finished difference Result 8458 states and 12313 transitions. [2020-12-23 09:38:12,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:12,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:12,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:12,825 INFO L225 Difference]: With dead ends: 8458 [2020-12-23 09:38:12,825 INFO L226 Difference]: Without dead ends: 4996 [2020-12-23 09:38:12,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:12,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4996 states. [2020-12-23 09:38:13,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4996 to 3494. [2020-12-23 09:38:13,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:13,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5087 transitions. [2020-12-23 09:38:13,010 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5087 transitions. Word has length 181 [2020-12-23 09:38:13,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:13,010 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5087 transitions. [2020-12-23 09:38:13,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:13,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5087 transitions. [2020-12-23 09:38:13,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:13,013 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:13,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:13,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 09:38:13,013 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:13,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:13,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1630009359, now seen corresponding path program 1 times [2020-12-23 09:38:13,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:13,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718964958] [2020-12-23 09:38:13,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:13,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:13,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718964958] [2020-12-23 09:38:13,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:13,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:13,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54366063] [2020-12-23 09:38:13,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:13,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:13,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:13,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:13,080 INFO L87 Difference]: Start difference. First operand 3494 states and 5087 transitions. Second operand 3 states. [2020-12-23 09:38:13,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:13,336 INFO L93 Difference]: Finished difference Result 6955 states and 10126 transitions. [2020-12-23 09:38:13,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:13,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:13,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:13,347 INFO L225 Difference]: With dead ends: 6955 [2020-12-23 09:38:13,348 INFO L226 Difference]: Without dead ends: 3494 [2020-12-23 09:38:13,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:13,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-12-23 09:38:13,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2020-12-23 09:38:13,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:13,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5051 transitions. [2020-12-23 09:38:13,668 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5051 transitions. Word has length 181 [2020-12-23 09:38:13,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:13,668 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5051 transitions. [2020-12-23 09:38:13,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:13,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5051 transitions. [2020-12-23 09:38:13,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:13,670 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:13,671 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:13,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 09:38:13,671 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:13,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:13,672 INFO L82 PathProgramCache]: Analyzing trace with hash 2021461041, now seen corresponding path program 1 times [2020-12-23 09:38:13,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:13,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721960739] [2020-12-23 09:38:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:13,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:13,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721960739] [2020-12-23 09:38:13,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:13,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:13,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109922987] [2020-12-23 09:38:13,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:13,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:13,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:13,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:13,787 INFO L87 Difference]: Start difference. First operand 3494 states and 5051 transitions. Second operand 4 states. [2020-12-23 09:38:14,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:14,402 INFO L93 Difference]: Finished difference Result 8454 states and 12214 transitions. [2020-12-23 09:38:14,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:14,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:14,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:14,414 INFO L225 Difference]: With dead ends: 8454 [2020-12-23 09:38:14,414 INFO L226 Difference]: Without dead ends: 4994 [2020-12-23 09:38:14,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:14,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4994 states. [2020-12-23 09:38:14,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4994 to 3494. [2020-12-23 09:38:14,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:14,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5048 transitions. [2020-12-23 09:38:14,655 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5048 transitions. Word has length 181 [2020-12-23 09:38:14,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:14,655 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5048 transitions. [2020-12-23 09:38:14,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:14,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5048 transitions. [2020-12-23 09:38:14,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:14,657 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:14,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:14,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 09:38:14,658 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:14,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:14,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1756813551, now seen corresponding path program 1 times [2020-12-23 09:38:14,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:14,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123962112] [2020-12-23 09:38:14,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:14,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123962112] [2020-12-23 09:38:14,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:14,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:14,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021242146] [2020-12-23 09:38:14,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:14,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:14,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:14,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:14,754 INFO L87 Difference]: Start difference. First operand 3494 states and 5048 transitions. Second operand 3 states. [2020-12-23 09:38:15,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:15,095 INFO L93 Difference]: Finished difference Result 6953 states and 10046 transitions. [2020-12-23 09:38:15,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:15,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:15,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:15,104 INFO L225 Difference]: With dead ends: 6953 [2020-12-23 09:38:15,105 INFO L226 Difference]: Without dead ends: 3494 [2020-12-23 09:38:15,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:15,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-12-23 09:38:15,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2020-12-23 09:38:15,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:15,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5012 transitions. [2020-12-23 09:38:15,334 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5012 transitions. Word has length 181 [2020-12-23 09:38:15,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:15,334 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5012 transitions. [2020-12-23 09:38:15,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:15,335 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5012 transitions. [2020-12-23 09:38:15,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:15,336 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:15,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:15,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 09:38:15,337 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:15,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:15,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1001394897, now seen corresponding path program 1 times [2020-12-23 09:38:15,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:15,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489538011] [2020-12-23 09:38:15,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:15,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:15,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489538011] [2020-12-23 09:38:15,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:15,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:15,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220880672] [2020-12-23 09:38:15,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:15,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:15,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:15,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:15,409 INFO L87 Difference]: Start difference. First operand 3494 states and 5012 transitions. Second operand 4 states. [2020-12-23 09:38:15,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:15,959 INFO L93 Difference]: Finished difference Result 8450 states and 12115 transitions. [2020-12-23 09:38:15,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:15,960 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:15,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:15,971 INFO L225 Difference]: With dead ends: 8450 [2020-12-23 09:38:15,971 INFO L226 Difference]: Without dead ends: 4992 [2020-12-23 09:38:15,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:15,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4992 states. [2020-12-23 09:38:16,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4992 to 3494. [2020-12-23 09:38:16,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5009 transitions. [2020-12-23 09:38:16,231 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5009 transitions. Word has length 181 [2020-12-23 09:38:16,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:16,231 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5009 transitions. [2020-12-23 09:38:16,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5009 transitions. [2020-12-23 09:38:16,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:16,233 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:16,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:16,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 09:38:16,234 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:16,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:16,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1970393453, now seen corresponding path program 1 times [2020-12-23 09:38:16,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:16,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4303134] [2020-12-23 09:38:16,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:16,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4303134] [2020-12-23 09:38:16,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:16,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:16,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105598601] [2020-12-23 09:38:16,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:16,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:16,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:16,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:16,351 INFO L87 Difference]: Start difference. First operand 3494 states and 5009 transitions. Second operand 4 states. [2020-12-23 09:38:16,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:16,899 INFO L93 Difference]: Finished difference Result 8446 states and 12101 transitions. [2020-12-23 09:38:16,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:16,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:16,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:16,911 INFO L225 Difference]: With dead ends: 8446 [2020-12-23 09:38:16,912 INFO L226 Difference]: Without dead ends: 4990 [2020-12-23 09:38:16,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:16,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4990 states. [2020-12-23 09:38:17,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4990 to 3494. [2020-12-23 09:38:17,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:17,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5006 transitions. [2020-12-23 09:38:17,170 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5006 transitions. Word has length 181 [2020-12-23 09:38:17,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:17,171 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5006 transitions. [2020-12-23 09:38:17,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:17,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5006 transitions. [2020-12-23 09:38:17,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:17,173 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:17,173 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:17,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 09:38:17,173 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:17,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:17,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1986286293, now seen corresponding path program 1 times [2020-12-23 09:38:17,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:17,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558103352] [2020-12-23 09:38:17,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:17,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:17,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558103352] [2020-12-23 09:38:17,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:17,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:17,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118014190] [2020-12-23 09:38:17,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:17,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:17,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:17,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:17,247 INFO L87 Difference]: Start difference. First operand 3494 states and 5006 transitions. Second operand 4 states. [2020-12-23 09:38:17,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:17,808 INFO L93 Difference]: Finished difference Result 8444 states and 12091 transitions. [2020-12-23 09:38:17,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:17,808 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:17,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:17,820 INFO L225 Difference]: With dead ends: 8444 [2020-12-23 09:38:17,821 INFO L226 Difference]: Without dead ends: 4989 [2020-12-23 09:38:17,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:17,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4989 states. [2020-12-23 09:38:18,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4989 to 3494. [2020-12-23 09:38:18,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:18,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5003 transitions. [2020-12-23 09:38:18,081 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5003 transitions. Word has length 181 [2020-12-23 09:38:18,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:18,082 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5003 transitions. [2020-12-23 09:38:18,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:18,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5003 transitions. [2020-12-23 09:38:18,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:18,083 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:18,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:18,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 09:38:18,084 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:18,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:18,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1559731795, now seen corresponding path program 1 times [2020-12-23 09:38:18,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:18,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536860583] [2020-12-23 09:38:18,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:18,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536860583] [2020-12-23 09:38:18,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:18,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:18,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128685446] [2020-12-23 09:38:18,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:18,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:18,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:18,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:18,155 INFO L87 Difference]: Start difference. First operand 3494 states and 5003 transitions. Second operand 4 states. [2020-12-23 09:38:18,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:18,668 INFO L93 Difference]: Finished difference Result 8442 states and 12081 transitions. [2020-12-23 09:38:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:18,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:18,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:18,682 INFO L225 Difference]: With dead ends: 8442 [2020-12-23 09:38:18,683 INFO L226 Difference]: Without dead ends: 4988 [2020-12-23 09:38:18,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:18,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-12-23 09:38:19,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 3494. [2020-12-23 09:38:19,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:19,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5000 transitions. [2020-12-23 09:38:19,085 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5000 transitions. Word has length 181 [2020-12-23 09:38:19,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:19,085 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 5000 transitions. [2020-12-23 09:38:19,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:19,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5000 transitions. [2020-12-23 09:38:19,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:19,087 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:19,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:19,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 09:38:19,090 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:19,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:19,092 INFO L82 PathProgramCache]: Analyzing trace with hash -2100161301, now seen corresponding path program 1 times [2020-12-23 09:38:19,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:19,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406337627] [2020-12-23 09:38:19,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:19,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:19,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406337627] [2020-12-23 09:38:19,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:19,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:19,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183390861] [2020-12-23 09:38:19,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:19,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:19,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:19,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:19,228 INFO L87 Difference]: Start difference. First operand 3494 states and 5000 transitions. Second operand 4 states. [2020-12-23 09:38:19,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:19,887 INFO L93 Difference]: Finished difference Result 8440 states and 12071 transitions. [2020-12-23 09:38:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:19,888 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:19,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:19,897 INFO L225 Difference]: With dead ends: 8440 [2020-12-23 09:38:19,897 INFO L226 Difference]: Without dead ends: 4987 [2020-12-23 09:38:19,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:19,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2020-12-23 09:38:20,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 3494. [2020-12-23 09:38:20,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:20,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 4997 transitions. [2020-12-23 09:38:20,202 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 4997 transitions. Word has length 181 [2020-12-23 09:38:20,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:20,202 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 4997 transitions. [2020-12-23 09:38:20,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:20,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 4997 transitions. [2020-12-23 09:38:20,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:20,204 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:20,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:20,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 09:38:20,205 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:20,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:20,205 INFO L82 PathProgramCache]: Analyzing trace with hash 2038825453, now seen corresponding path program 1 times [2020-12-23 09:38:20,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:20,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727553698] [2020-12-23 09:38:20,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:20,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:20,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727553698] [2020-12-23 09:38:20,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:20,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:20,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006940739] [2020-12-23 09:38:20,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:20,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:20,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:20,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:20,321 INFO L87 Difference]: Start difference. First operand 3494 states and 4997 transitions. Second operand 4 states. [2020-12-23 09:38:20,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:20,976 INFO L93 Difference]: Finished difference Result 8438 states and 12061 transitions. [2020-12-23 09:38:20,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:20,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:20,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:20,982 INFO L225 Difference]: With dead ends: 8438 [2020-12-23 09:38:20,982 INFO L226 Difference]: Without dead ends: 4986 [2020-12-23 09:38:20,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:20,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4986 states. [2020-12-23 09:38:21,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4986 to 3494. [2020-12-23 09:38:21,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:21,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 4994 transitions. [2020-12-23 09:38:21,301 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 4994 transitions. Word has length 181 [2020-12-23 09:38:21,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:21,301 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 4994 transitions. [2020-12-23 09:38:21,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:21,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 4994 transitions. [2020-12-23 09:38:21,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:21,303 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:21,303 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:21,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 09:38:21,304 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:21,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:21,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1845531477, now seen corresponding path program 1 times [2020-12-23 09:38:21,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:21,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606796801] [2020-12-23 09:38:21,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:21,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606796801] [2020-12-23 09:38:21,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:21,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:21,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448418139] [2020-12-23 09:38:21,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:21,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:21,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:21,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:21,374 INFO L87 Difference]: Start difference. First operand 3494 states and 4994 transitions. Second operand 3 states. [2020-12-23 09:38:21,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:21,662 INFO L93 Difference]: Finished difference Result 6945 states and 9929 transitions. [2020-12-23 09:38:21,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:21,662 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:21,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:21,666 INFO L225 Difference]: With dead ends: 6945 [2020-12-23 09:38:21,666 INFO L226 Difference]: Without dead ends: 3494 [2020-12-23 09:38:21,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:21,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-12-23 09:38:21,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2020-12-23 09:38:21,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:21,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 4958 transitions. [2020-12-23 09:38:21,888 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 4958 transitions. Word has length 181 [2020-12-23 09:38:21,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:21,888 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 4958 transitions. [2020-12-23 09:38:21,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:21,888 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 4958 transitions. [2020-12-23 09:38:21,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:21,890 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:21,890 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:21,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-23 09:38:21,890 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:21,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:21,891 INFO L82 PathProgramCache]: Analyzing trace with hash 857011594, now seen corresponding path program 1 times [2020-12-23 09:38:21,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:21,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811160218] [2020-12-23 09:38:21,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:21,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:21,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811160218] [2020-12-23 09:38:21,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:21,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:38:21,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161894643] [2020-12-23 09:38:21,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:38:21,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:21,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:38:21,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:21,960 INFO L87 Difference]: Start difference. First operand 3494 states and 4958 transitions. Second operand 3 states. [2020-12-23 09:38:22,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:22,290 INFO L93 Difference]: Finished difference Result 6944 states and 9856 transitions. [2020-12-23 09:38:22,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:38:22,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-12-23 09:38:22,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:22,294 INFO L225 Difference]: With dead ends: 6944 [2020-12-23 09:38:22,294 INFO L226 Difference]: Without dead ends: 3494 [2020-12-23 09:38:22,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:38:22,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-12-23 09:38:22,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2020-12-23 09:38:22,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-23 09:38:22,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 4922 transitions. [2020-12-23 09:38:22,517 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 4922 transitions. Word has length 181 [2020-12-23 09:38:22,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:22,517 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 4922 transitions. [2020-12-23 09:38:22,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:38:22,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 4922 transitions. [2020-12-23 09:38:22,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:22,519 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:22,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:22,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-23 09:38:22,519 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:22,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:22,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1278871608, now seen corresponding path program 1 times [2020-12-23 09:38:22,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:22,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081068227] [2020-12-23 09:38:22,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:22,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:22,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081068227] [2020-12-23 09:38:22,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:22,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:38:22,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597924067] [2020-12-23 09:38:22,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:38:22,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:22,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:38:22,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:22,599 INFO L87 Difference]: Start difference. First operand 3494 states and 4922 transitions. Second operand 5 states. [2020-12-23 09:38:23,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:23,492 INFO L93 Difference]: Finished difference Result 10708 states and 15152 transitions. [2020-12-23 09:38:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:38:23,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2020-12-23 09:38:23,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:23,499 INFO L225 Difference]: With dead ends: 10708 [2020-12-23 09:38:23,500 INFO L226 Difference]: Without dead ends: 7265 [2020-12-23 09:38:23,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:38:23,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2020-12-23 09:38:23,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 3539. [2020-12-23 09:38:23,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3539 states. [2020-12-23 09:38:23,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3539 states to 3539 states and 4952 transitions. [2020-12-23 09:38:23,864 INFO L78 Accepts]: Start accepts. Automaton has 3539 states and 4952 transitions. Word has length 181 [2020-12-23 09:38:23,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:23,864 INFO L481 AbstractCegarLoop]: Abstraction has 3539 states and 4952 transitions. [2020-12-23 09:38:23,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:38:23,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3539 states and 4952 transitions. [2020-12-23 09:38:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:23,867 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:23,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:23,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-23 09:38:23,867 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:23,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:23,868 INFO L82 PathProgramCache]: Analyzing trace with hash -990052218, now seen corresponding path program 1 times [2020-12-23 09:38:23,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:23,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927935085] [2020-12-23 09:38:23,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:23,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:23,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927935085] [2020-12-23 09:38:23,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:23,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:23,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131102580] [2020-12-23 09:38:23,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:23,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:23,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:23,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:23,937 INFO L87 Difference]: Start difference. First operand 3539 states and 4952 transitions. Second operand 4 states. [2020-12-23 09:38:24,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:24,938 INFO L93 Difference]: Finished difference Result 13423 states and 18762 transitions. [2020-12-23 09:38:24,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:24,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:24,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:24,951 INFO L225 Difference]: With dead ends: 13423 [2020-12-23 09:38:24,951 INFO L226 Difference]: Without dead ends: 9930 [2020-12-23 09:38:24,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:24,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9930 states. [2020-12-23 09:38:25,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9930 to 9542. [2020-12-23 09:38:25,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9542 states. [2020-12-23 09:38:25,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9542 states to 9542 states and 13261 transitions. [2020-12-23 09:38:25,692 INFO L78 Accepts]: Start accepts. Automaton has 9542 states and 13261 transitions. Word has length 181 [2020-12-23 09:38:25,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:25,692 INFO L481 AbstractCegarLoop]: Abstraction has 9542 states and 13261 transitions. [2020-12-23 09:38:25,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:25,692 INFO L276 IsEmpty]: Start isEmpty. Operand 9542 states and 13261 transitions. [2020-12-23 09:38:25,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:25,694 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:25,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:25,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-23 09:38:25,695 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:25,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:25,695 INFO L82 PathProgramCache]: Analyzing trace with hash 676335973, now seen corresponding path program 1 times [2020-12-23 09:38:25,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:25,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917471976] [2020-12-23 09:38:25,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:25,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:25,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917471976] [2020-12-23 09:38:25,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:25,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:38:25,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742369577] [2020-12-23 09:38:25,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:38:25,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:25,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:38:25,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:25,765 INFO L87 Difference]: Start difference. First operand 9542 states and 13261 transitions. Second operand 5 states. [2020-12-23 09:38:27,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:27,380 INFO L93 Difference]: Finished difference Result 25259 states and 35173 transitions. [2020-12-23 09:38:27,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:38:27,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2020-12-23 09:38:27,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:27,399 INFO L225 Difference]: With dead ends: 25259 [2020-12-23 09:38:27,399 INFO L226 Difference]: Without dead ends: 15773 [2020-12-23 09:38:27,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:38:27,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15773 states. [2020-12-23 09:38:28,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15773 to 9629. [2020-12-23 09:38:28,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9629 states. [2020-12-23 09:38:28,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 13295 transitions. [2020-12-23 09:38:28,217 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 13295 transitions. Word has length 181 [2020-12-23 09:38:28,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:28,218 INFO L481 AbstractCegarLoop]: Abstraction has 9629 states and 13295 transitions. [2020-12-23 09:38:28,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:38:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 13295 transitions. [2020-12-23 09:38:28,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:28,220 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:28,220 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:28,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-23 09:38:28,220 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:28,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:28,221 INFO L82 PathProgramCache]: Analyzing trace with hash 246677667, now seen corresponding path program 1 times [2020-12-23 09:38:28,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:28,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073403921] [2020-12-23 09:38:28,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:28,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073403921] [2020-12-23 09:38:28,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:28,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:28,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112680577] [2020-12-23 09:38:28,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:28,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:28,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:28,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:28,300 INFO L87 Difference]: Start difference. First operand 9629 states and 13295 transitions. Second operand 4 states. [2020-12-23 09:38:30,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:30,463 INFO L93 Difference]: Finished difference Result 37083 states and 51152 transitions. [2020-12-23 09:38:30,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:30,463 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:30,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:30,491 INFO L225 Difference]: With dead ends: 37083 [2020-12-23 09:38:30,491 INFO L226 Difference]: Without dead ends: 27519 [2020-12-23 09:38:30,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:30,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27519 states. [2020-12-23 09:38:32,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27519 to 26617. [2020-12-23 09:38:32,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26617 states. [2020-12-23 09:38:32,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26617 states to 26617 states and 36511 transitions. [2020-12-23 09:38:32,805 INFO L78 Accepts]: Start accepts. Automaton has 26617 states and 36511 transitions. Word has length 181 [2020-12-23 09:38:32,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:32,805 INFO L481 AbstractCegarLoop]: Abstraction has 26617 states and 36511 transitions. [2020-12-23 09:38:32,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 26617 states and 36511 transitions. [2020-12-23 09:38:32,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:32,808 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:32,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:32,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-23 09:38:32,808 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:32,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:32,809 INFO L82 PathProgramCache]: Analyzing trace with hash -630577150, now seen corresponding path program 1 times [2020-12-23 09:38:32,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:32,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637843731] [2020-12-23 09:38:32,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:32,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:32,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637843731] [2020-12-23 09:38:32,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:32,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:38:32,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785481415] [2020-12-23 09:38:32,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:38:32,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:32,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:38:32,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:32,890 INFO L87 Difference]: Start difference. First operand 26617 states and 36511 transitions. Second operand 5 states. [2020-12-23 09:38:36,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:36,388 INFO L93 Difference]: Finished difference Result 69560 states and 95770 transitions. [2020-12-23 09:38:36,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:38:36,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2020-12-23 09:38:36,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:36,434 INFO L225 Difference]: With dead ends: 69560 [2020-12-23 09:38:36,435 INFO L226 Difference]: Without dead ends: 43012 [2020-12-23 09:38:36,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:38:36,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43012 states. [2020-12-23 09:38:39,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43012 to 26860. [2020-12-23 09:38:39,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26860 states. [2020-12-23 09:38:39,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26860 states to 26860 states and 36607 transitions. [2020-12-23 09:38:39,165 INFO L78 Accepts]: Start accepts. Automaton has 26860 states and 36607 transitions. Word has length 181 [2020-12-23 09:38:39,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:39,165 INFO L481 AbstractCegarLoop]: Abstraction has 26860 states and 36607 transitions. [2020-12-23 09:38:39,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:38:39,165 INFO L276 IsEmpty]: Start isEmpty. Operand 26860 states and 36607 transitions. [2020-12-23 09:38:39,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:39,167 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:39,168 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:39,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-23 09:38:39,168 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:39,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:39,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1371309120, now seen corresponding path program 1 times [2020-12-23 09:38:39,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:39,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442859227] [2020-12-23 09:38:39,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:39,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442859227] [2020-12-23 09:38:39,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:39,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:38:39,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507380460] [2020-12-23 09:38:39,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:38:39,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:39,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:38:39,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:39,249 INFO L87 Difference]: Start difference. First operand 26860 states and 36607 transitions. Second operand 5 states. [2020-12-23 09:38:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:42,275 INFO L93 Difference]: Finished difference Result 59029 states and 80270 transitions. [2020-12-23 09:38:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:38:42,276 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2020-12-23 09:38:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:42,308 INFO L225 Difference]: With dead ends: 59029 [2020-12-23 09:38:42,308 INFO L226 Difference]: Without dead ends: 32245 [2020-12-23 09:38:42,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:38:42,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32245 states. [2020-12-23 09:38:44,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32245 to 26878. [2020-12-23 09:38:44,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26878 states. [2020-12-23 09:38:44,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26878 states to 26878 states and 36403 transitions. [2020-12-23 09:38:44,780 INFO L78 Accepts]: Start accepts. Automaton has 26878 states and 36403 transitions. Word has length 181 [2020-12-23 09:38:44,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:44,780 INFO L481 AbstractCegarLoop]: Abstraction has 26878 states and 36403 transitions. [2020-12-23 09:38:44,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:38:44,780 INFO L276 IsEmpty]: Start isEmpty. Operand 26878 states and 36403 transitions. [2020-12-23 09:38:44,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:44,782 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:44,782 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:44,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-23 09:38:44,782 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:44,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:44,783 INFO L82 PathProgramCache]: Analyzing trace with hash -601856258, now seen corresponding path program 1 times [2020-12-23 09:38:44,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:44,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552795983] [2020-12-23 09:38:44,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:44,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:44,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552795983] [2020-12-23 09:38:44,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:44,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:38:44,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155485940] [2020-12-23 09:38:44,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:38:44,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:44,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:38:44,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:38:44,862 INFO L87 Difference]: Start difference. First operand 26878 states and 36403 transitions. Second operand 4 states. [2020-12-23 09:38:52,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:38:52,067 INFO L93 Difference]: Finished difference Result 103933 states and 140679 transitions. [2020-12-23 09:38:52,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:38:52,067 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:38:52,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:38:52,151 INFO L225 Difference]: With dead ends: 103933 [2020-12-23 09:38:52,151 INFO L226 Difference]: Without dead ends: 77133 [2020-12-23 09:38:52,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:52,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77133 states. [2020-12-23 09:38:59,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77133 to 75071. [2020-12-23 09:38:59,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75071 states. [2020-12-23 09:38:59,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75071 states to 75071 states and 101074 transitions. [2020-12-23 09:38:59,431 INFO L78 Accepts]: Start accepts. Automaton has 75071 states and 101074 transitions. Word has length 181 [2020-12-23 09:38:59,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:38:59,431 INFO L481 AbstractCegarLoop]: Abstraction has 75071 states and 101074 transitions. [2020-12-23 09:38:59,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:38:59,432 INFO L276 IsEmpty]: Start isEmpty. Operand 75071 states and 101074 transitions. [2020-12-23 09:38:59,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:38:59,435 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:38:59,435 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:38:59,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-23 09:38:59,436 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:38:59,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:38:59,436 INFO L82 PathProgramCache]: Analyzing trace with hash -280533795, now seen corresponding path program 1 times [2020-12-23 09:38:59,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:38:59,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502717195] [2020-12-23 09:38:59,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:38:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:38:59,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:38:59,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502717195] [2020-12-23 09:38:59,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:38:59,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:38:59,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998694008] [2020-12-23 09:38:59,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:38:59,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:38:59,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:38:59,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:38:59,535 INFO L87 Difference]: Start difference. First operand 75071 states and 101074 transitions. Second operand 5 states. [2020-12-23 09:39:10,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:10,355 INFO L93 Difference]: Finished difference Result 193229 states and 261612 transitions. [2020-12-23 09:39:10,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:39:10,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2020-12-23 09:39:10,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:10,503 INFO L225 Difference]: With dead ends: 193229 [2020-12-23 09:39:10,503 INFO L226 Difference]: Without dead ends: 118240 [2020-12-23 09:39:10,560 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 [2020-12-23 09:39:10,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118240 states. [2020-12-23 09:39:18,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118240 to 75752. [2020-12-23 09:39:18,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75752 states. [2020-12-23 09:39:18,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75752 states to 75752 states and 101344 transitions. [2020-12-23 09:39:18,414 INFO L78 Accepts]: Start accepts. Automaton has 75752 states and 101344 transitions. Word has length 181 [2020-12-23 09:39:18,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:18,415 INFO L481 AbstractCegarLoop]: Abstraction has 75752 states and 101344 transitions. [2020-12-23 09:39:18,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:39:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand 75752 states and 101344 transitions. [2020-12-23 09:39:18,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:39:18,416 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:18,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:18,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-23 09:39:18,417 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:18,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:18,417 INFO L82 PathProgramCache]: Analyzing trace with hash -2147242469, now seen corresponding path program 1 times [2020-12-23 09:39:18,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:18,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567861455] [2020-12-23 09:39:18,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:18,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:39:18,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567861455] [2020-12-23 09:39:18,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:18,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:39:18,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72377049] [2020-12-23 09:39:18,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:39:18,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:18,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:39:18,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:18,525 INFO L87 Difference]: Start difference. First operand 75752 states and 101344 transitions. Second operand 5 states. [2020-12-23 09:39:36,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:36,214 INFO L93 Difference]: Finished difference Result 269481 states and 364170 transitions. [2020-12-23 09:39:36,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:39:36,215 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2020-12-23 09:39:36,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:36,467 INFO L225 Difference]: With dead ends: 269481 [2020-12-23 09:39:36,468 INFO L226 Difference]: Without dead ends: 193818 [2020-12-23 09:39:36,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:39:36,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193818 states. [2020-12-23 09:39:45,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193818 to 77666. [2020-12-23 09:39:45,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77666 states. [2020-12-23 09:39:45,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77666 states to 77666 states and 103258 transitions. [2020-12-23 09:39:45,657 INFO L78 Accepts]: Start accepts. Automaton has 77666 states and 103258 transitions. Word has length 181 [2020-12-23 09:39:45,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:45,657 INFO L481 AbstractCegarLoop]: Abstraction has 77666 states and 103258 transitions. [2020-12-23 09:39:45,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:39:45,657 INFO L276 IsEmpty]: Start isEmpty. Operand 77666 states and 103258 transitions. [2020-12-23 09:39:45,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:39:45,659 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:45,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:45,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-23 09:39:45,660 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:45,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:45,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1090993625, now seen corresponding path program 1 times [2020-12-23 09:39:45,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:45,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999018003] [2020-12-23 09:39:45,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:45,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:39:45,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999018003] [2020-12-23 09:39:45,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:45,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:45,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000510597] [2020-12-23 09:39:45,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:39:45,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:45,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:39:45,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:39:45,740 INFO L87 Difference]: Start difference. First operand 77666 states and 103258 transitions. Second operand 4 states. [2020-12-23 09:40:08,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:40:08,551 INFO L93 Difference]: Finished difference Result 300017 states and 398718 transitions. [2020-12-23 09:40:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:40:08,551 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:40:08,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:40:08,973 INFO L225 Difference]: With dead ends: 300017 [2020-12-23 09:40:08,973 INFO L226 Difference]: Without dead ends: 222445 [2020-12-23 09:40:09,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:40:09,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222445 states. [2020-12-23 09:40:31,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222445 to 217791. [2020-12-23 09:40:31,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217791 states.