/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/systemc/token_ring.12.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 09:34:24,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 09:34:24,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 09:34:24,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 09:34:24,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 09:34:24,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 09:34:24,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 09:34:24,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 09:34:24,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 09:34:24,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 09:34:24,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 09:34:24,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 09:34:24,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 09:34:24,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 09:34:24,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 09:34:24,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 09:34:24,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 09:34:24,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 09:34:24,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 09:34:24,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 09:34:24,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 09:34:24,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 09:34:24,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 09:34:24,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 09:34:24,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 09:34:24,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 09:34:24,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 09:34:24,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 09:34:24,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 09:34:24,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 09:34:24,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 09:34:24,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 09:34:24,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 09:34:24,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 09:34:24,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 09:34:24,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 09:34:24,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 09:34:24,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 09:34:24,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 09:34:24,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 09:34:24,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 09:34:24,688 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 09:34:24,717 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 09:34:24,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 09:34:24,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 09:34:24,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 09:34:24,719 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 09:34:24,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 09:34:24,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 09:34:24,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 09:34:24,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 09:34:24,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 09:34:24,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 09:34:24,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 09:34:24,739 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 09:34:24,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 09:34:24,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 09:34:24,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 09:34:24,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 09:34:24,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:34:24,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 09:34:24,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 09:34:24,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 09:34:24,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 09:34:24,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 09:34:24,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 09:34:24,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 09:34:24,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 09:34:25,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 09:34:25,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 09:34:25,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 09:34:25,242 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 09:34:25,243 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 09:34:25,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.12.cil-2.c [2020-12-23 09:34:25,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4430dd73e/4b2d17c763a44af486119820daff4a67/FLAG97d128f55 [2020-12-23 09:34:26,147 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 09:34:26,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.12.cil-2.c [2020-12-23 09:34:26,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4430dd73e/4b2d17c763a44af486119820daff4a67/FLAG97d128f55 [2020-12-23 09:34:26,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4430dd73e/4b2d17c763a44af486119820daff4a67 [2020-12-23 09:34:26,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 09:34:26,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 09:34:26,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 09:34:26,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 09:34:26,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 09:34:26,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:34:26" (1/1) ... [2020-12-23 09:34:26,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17431167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:26, skipping insertion in model container [2020-12-23 09:34:26,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:34:26" (1/1) ... [2020-12-23 09:34:26,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 09:34:26,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 09:34:26,676 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.12.cil-2.c[366,379] left hand side expression in assignment: lhs: VariableLHS[~token~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~local~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_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_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__retres1~0,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~0,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~1,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~1,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~2,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~2,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~3,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~3,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~4,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~4,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~5,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~5,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~6,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~6,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~7,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~7,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~8,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~8,] left hand side expression in assignment: lhs: VariableLHS[~__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[~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[~__retres1~13,] 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[~__retres1~13,] 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[~__retres1~13,] 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[~__retres1~13,] 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[~__retres1~13,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~13,] 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[~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[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~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[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~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[~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[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~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[~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[~__retres1~14,] [2020-12-23 09:34:26,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:34:26,900 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 09:34:26,927 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.12.cil-2.c[366,379] left hand side expression in assignment: lhs: VariableLHS[~token~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~local~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t1_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t2_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t3_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t4_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t5_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t6_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t7_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_pc~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~t8_st~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_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_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__retres1~0,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~0,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~1,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~1,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~2,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~2,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~3,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~3,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~4,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~4,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~5,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~5,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~6,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~6,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~7,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~7,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~8,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~8,] left hand side expression in assignment: lhs: VariableLHS[~__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[~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[~__retres1~13,] 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[~__retres1~13,] 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[~__retres1~13,] 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[~__retres1~13,] 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[~__retres1~13,] left hand side expression in assignment: lhs: VariableLHS[~__retres1~13,] 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[~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[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~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[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~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[~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[~E_M~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~E_8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~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[~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[~__retres1~14,] [2020-12-23 09:34:27,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:34:27,135 INFO L208 MainTranslator]: Completed translation [2020-12-23 09:34:27,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:27 WrapperNode [2020-12-23 09:34:27,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 09:34:27,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 09:34:27,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 09:34:27,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 09:34:27,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:27" (1/1) ... [2020-12-23 09:34:27,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:27" (1/1) ... [2020-12-23 09:34:27,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 09:34:27,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 09:34:27,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 09:34:27,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 09:34:27,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:27" (1/1) ... [2020-12-23 09:34:27,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:27" (1/1) ... [2020-12-23 09:34:27,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:27" (1/1) ... [2020-12-23 09:34:27,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:27" (1/1) ... [2020-12-23 09:34:27,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:27" (1/1) ... [2020-12-23 09:34:27,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:27" (1/1) ... [2020-12-23 09:34:27,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:27" (1/1) ... [2020-12-23 09:34:27,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 09:34:27,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 09:34:27,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 09:34:27,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 09:34:27,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:27" (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 09:34:27,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 09:34:27,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 09:34:27,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 09:34:27,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 09:34:30,504 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 09:34:30,505 INFO L299 CfgBuilder]: Removed 553 assume(true) statements. [2020-12-23 09:34:30,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:34:30 BoogieIcfgContainer [2020-12-23 09:34:30,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 09:34:30,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 09:34:30,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 09:34:30,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 09:34:30,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:34:26" (1/3) ... [2020-12-23 09:34:30,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cda8564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:34:30, skipping insertion in model container [2020-12-23 09:34:30,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:34:27" (2/3) ... [2020-12-23 09:34:30,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cda8564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:34:30, skipping insertion in model container [2020-12-23 09:34:30,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:34:30" (3/3) ... [2020-12-23 09:34:30,518 INFO L111 eAbstractionObserver]: Analyzing ICFG token_ring.12.cil-2.c [2020-12-23 09:34:30,525 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 09:34:30,532 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 09:34:30,553 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 09:34:30,589 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 09:34:30,589 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 09:34:30,590 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 09:34:30,590 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 09:34:30,590 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 09:34:30,590 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 09:34:30,590 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 09:34:30,590 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 09:34:30,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states. [2020-12-23 09:34:30,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:30,646 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:30,648 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] [2020-12-23 09:34:30,648 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:30,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:30,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1063150512, now seen corresponding path program 1 times [2020-12-23 09:34:30,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:30,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096864452] [2020-12-23 09:34:30,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:31,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096864452] [2020-12-23 09:34:31,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:31,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:31,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889013774] [2020-12-23 09:34:31,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:34:31,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:31,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:34:31,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:34:31,068 INFO L87 Difference]: Start difference. First operand 1758 states. Second operand 3 states. [2020-12-23 09:34:31,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:31,270 INFO L93 Difference]: Finished difference Result 3511 states and 5293 transitions. [2020-12-23 09:34:31,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:34:31,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-12-23 09:34:31,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:31,302 INFO L225 Difference]: With dead ends: 3511 [2020-12-23 09:34:31,303 INFO L226 Difference]: Without dead ends: 1754 [2020-12-23 09:34:31,324 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 09:34:31,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2020-12-23 09:34:31,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1754. [2020-12-23 09:34:31,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1754 states. [2020-12-23 09:34:31,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2614 transitions. [2020-12-23 09:34:31,513 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2614 transitions. Word has length 160 [2020-12-23 09:34:31,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:31,513 INFO L481 AbstractCegarLoop]: Abstraction has 1754 states and 2614 transitions. [2020-12-23 09:34:31,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:34:31,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2614 transitions. [2020-12-23 09:34:31,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:31,517 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:31,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:34:31,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 09:34:31,518 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:31,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:31,519 INFO L82 PathProgramCache]: Analyzing trace with hash 82195698, now seen corresponding path program 1 times [2020-12-23 09:34:31,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:31,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089033116] [2020-12-23 09:34:31,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:31,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:31,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089033116] [2020-12-23 09:34:31,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:31,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:31,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617483059] [2020-12-23 09:34:31,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:34:31,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:31,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:34:31,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:34:31,662 INFO L87 Difference]: Start difference. First operand 1754 states and 2614 transitions. Second operand 3 states. [2020-12-23 09:34:31,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:31,753 INFO L93 Difference]: Finished difference Result 3495 states and 5206 transitions. [2020-12-23 09:34:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:34:31,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-12-23 09:34:31,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:31,763 INFO L225 Difference]: With dead ends: 3495 [2020-12-23 09:34:31,764 INFO L226 Difference]: Without dead ends: 1754 [2020-12-23 09:34:31,768 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 09:34:31,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2020-12-23 09:34:31,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1754. [2020-12-23 09:34:31,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1754 states. [2020-12-23 09:34:31,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2613 transitions. [2020-12-23 09:34:31,839 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2613 transitions. Word has length 160 [2020-12-23 09:34:31,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:31,839 INFO L481 AbstractCegarLoop]: Abstraction has 1754 states and 2613 transitions. [2020-12-23 09:34:31,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:34:31,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2613 transitions. [2020-12-23 09:34:31,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:31,842 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:31,843 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] [2020-12-23 09:34:31,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 09:34:31,843 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:31,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:31,844 INFO L82 PathProgramCache]: Analyzing trace with hash 346843188, now seen corresponding path program 1 times [2020-12-23 09:34:31,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:31,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105057308] [2020-12-23 09:34:31,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:32,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105057308] [2020-12-23 09:34:32,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:32,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:34:32,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068266522] [2020-12-23 09:34:32,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:34:32,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:32,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:34:32,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:34:32,026 INFO L87 Difference]: Start difference. First operand 1754 states and 2613 transitions. Second operand 3 states. [2020-12-23 09:34:32,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:32,200 INFO L93 Difference]: Finished difference Result 4994 states and 7417 transitions. [2020-12-23 09:34:32,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:34:32,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-12-23 09:34:32,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:32,220 INFO L225 Difference]: With dead ends: 4994 [2020-12-23 09:34:32,220 INFO L226 Difference]: Without dead ends: 3257 [2020-12-23 09:34:32,225 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 09:34:32,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2020-12-23 09:34:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 3255. [2020-12-23 09:34:32,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:32,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4828 transitions. [2020-12-23 09:34:32,365 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4828 transitions. Word has length 160 [2020-12-23 09:34:32,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:32,372 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4828 transitions. [2020-12-23 09:34:32,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:34:32,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4828 transitions. [2020-12-23 09:34:32,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:32,376 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:32,377 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] [2020-12-23 09:34:32,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 09:34:32,377 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:32,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:32,378 INFO L82 PathProgramCache]: Analyzing trace with hash -686676560, now seen corresponding path program 1 times [2020-12-23 09:34:32,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:32,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057884287] [2020-12-23 09:34:32,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:32,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:32,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057884287] [2020-12-23 09:34:32,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:32,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:32,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250834924] [2020-12-23 09:34:32,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:32,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:32,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:32,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:32,546 INFO L87 Difference]: Start difference. First operand 3255 states and 4828 transitions. Second operand 4 states. [2020-12-23 09:34:32,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:32,896 INFO L93 Difference]: Finished difference Result 7994 states and 11842 transitions. [2020-12-23 09:34:32,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:32,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:32,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:32,920 INFO L225 Difference]: With dead ends: 7994 [2020-12-23 09:34:32,921 INFO L226 Difference]: Without dead ends: 4757 [2020-12-23 09:34:32,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:32,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2020-12-23 09:34:33,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 3255. [2020-12-23 09:34:33,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:33,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4825 transitions. [2020-12-23 09:34:33,102 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4825 transitions. Word has length 160 [2020-12-23 09:34:33,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:33,103 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4825 transitions. [2020-12-23 09:34:33,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:33,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4825 transitions. [2020-12-23 09:34:33,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:33,105 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:33,105 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] [2020-12-23 09:34:33,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 09:34:33,106 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:33,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:33,107 INFO L82 PathProgramCache]: Analyzing trace with hash -260122062, now seen corresponding path program 1 times [2020-12-23 09:34:33,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:33,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690750498] [2020-12-23 09:34:33,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:33,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:33,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690750498] [2020-12-23 09:34:33,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:33,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:33,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924572106] [2020-12-23 09:34:33,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:33,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:33,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:33,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:33,249 INFO L87 Difference]: Start difference. First operand 3255 states and 4825 transitions. Second operand 4 states. [2020-12-23 09:34:33,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:33,599 INFO L93 Difference]: Finished difference Result 7992 states and 11832 transitions. [2020-12-23 09:34:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:33,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:33,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:33,626 INFO L225 Difference]: With dead ends: 7992 [2020-12-23 09:34:33,626 INFO L226 Difference]: Without dead ends: 4756 [2020-12-23 09:34:33,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:33,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2020-12-23 09:34:33,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 3255. [2020-12-23 09:34:33,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:33,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4822 transitions. [2020-12-23 09:34:33,864 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4822 transitions. Word has length 160 [2020-12-23 09:34:33,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:33,865 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4822 transitions. [2020-12-23 09:34:33,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:33,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4822 transitions. [2020-12-23 09:34:33,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:33,867 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:33,868 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] [2020-12-23 09:34:33,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 09:34:33,868 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:33,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:33,869 INFO L82 PathProgramCache]: Analyzing trace with hash -800551568, now seen corresponding path program 1 times [2020-12-23 09:34:33,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:33,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128196597] [2020-12-23 09:34:33,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:33,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:33,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128196597] [2020-12-23 09:34:33,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:33,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:33,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227348634] [2020-12-23 09:34:33,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:33,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:33,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:33,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:33,988 INFO L87 Difference]: Start difference. First operand 3255 states and 4822 transitions. Second operand 4 states. [2020-12-23 09:34:34,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:34,466 INFO L93 Difference]: Finished difference Result 7990 states and 11822 transitions. [2020-12-23 09:34:34,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:34,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:34,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:34,499 INFO L225 Difference]: With dead ends: 7990 [2020-12-23 09:34:34,499 INFO L226 Difference]: Without dead ends: 4755 [2020-12-23 09:34:34,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:34,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4755 states. [2020-12-23 09:34:34,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4755 to 3255. [2020-12-23 09:34:34,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:34,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4819 transitions. [2020-12-23 09:34:34,810 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4819 transitions. Word has length 160 [2020-12-23 09:34:34,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:34,811 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4819 transitions. [2020-12-23 09:34:34,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:34,811 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4819 transitions. [2020-12-23 09:34:34,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:34,813 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:34,813 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] [2020-12-23 09:34:34,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 09:34:34,814 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:34,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:34,821 INFO L82 PathProgramCache]: Analyzing trace with hash -956532110, now seen corresponding path program 1 times [2020-12-23 09:34:34,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:34,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771075270] [2020-12-23 09:34:34,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:34,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:34,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771075270] [2020-12-23 09:34:34,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:34,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:34:34,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24194203] [2020-12-23 09:34:34,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:34:34,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:34,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:34:34,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:34:34,913 INFO L87 Difference]: Start difference. First operand 3255 states and 4819 transitions. Second operand 3 states. [2020-12-23 09:34:35,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:35,120 INFO L93 Difference]: Finished difference Result 6488 states and 9603 transitions. [2020-12-23 09:34:35,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:34:35,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-12-23 09:34:35,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:35,138 INFO L225 Difference]: With dead ends: 6488 [2020-12-23 09:34:35,138 INFO L226 Difference]: Without dead ends: 3255 [2020-12-23 09:34:35,145 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 09:34:35,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2020-12-23 09:34:35,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 3255. [2020-12-23 09:34:35,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:35,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4811 transitions. [2020-12-23 09:34:35,346 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4811 transitions. Word has length 160 [2020-12-23 09:34:35,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:35,346 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4811 transitions. [2020-12-23 09:34:35,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:34:35,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4811 transitions. [2020-12-23 09:34:35,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:35,348 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:35,349 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] [2020-12-23 09:34:35,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 09:34:35,349 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:35,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:35,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1550565364, now seen corresponding path program 1 times [2020-12-23 09:34:35,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:35,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041589291] [2020-12-23 09:34:35,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:35,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:35,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041589291] [2020-12-23 09:34:35,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:35,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:35,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125712019] [2020-12-23 09:34:35,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:35,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:35,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:35,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:35,462 INFO L87 Difference]: Start difference. First operand 3255 states and 4811 transitions. Second operand 4 states. [2020-12-23 09:34:35,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:35,821 INFO L93 Difference]: Finished difference Result 7984 states and 11787 transitions. [2020-12-23 09:34:35,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:35,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:35,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:35,857 INFO L225 Difference]: With dead ends: 7984 [2020-12-23 09:34:35,858 INFO L226 Difference]: Without dead ends: 4752 [2020-12-23 09:34:35,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:35,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4752 states. [2020-12-23 09:34:36,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4752 to 3255. [2020-12-23 09:34:36,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:36,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4808 transitions. [2020-12-23 09:34:36,068 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4808 transitions. Word has length 160 [2020-12-23 09:34:36,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:36,069 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4808 transitions. [2020-12-23 09:34:36,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:36,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4808 transitions. [2020-12-23 09:34:36,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:36,071 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:36,071 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] [2020-12-23 09:34:36,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 09:34:36,072 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:36,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:36,073 INFO L82 PathProgramCache]: Analyzing trace with hash -585317838, now seen corresponding path program 1 times [2020-12-23 09:34:36,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:36,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655885749] [2020-12-23 09:34:36,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:36,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:36,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655885749] [2020-12-23 09:34:36,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:36,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:36,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144608351] [2020-12-23 09:34:36,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:36,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:36,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:36,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:36,174 INFO L87 Difference]: Start difference. First operand 3255 states and 4808 transitions. Second operand 4 states. [2020-12-23 09:34:36,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:36,544 INFO L93 Difference]: Finished difference Result 7982 states and 11777 transitions. [2020-12-23 09:34:36,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:36,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:36,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:36,560 INFO L225 Difference]: With dead ends: 7982 [2020-12-23 09:34:36,560 INFO L226 Difference]: Without dead ends: 4751 [2020-12-23 09:34:36,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:36,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4751 states. [2020-12-23 09:34:36,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4751 to 3255. [2020-12-23 09:34:36,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:36,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4805 transitions. [2020-12-23 09:34:36,796 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4805 transitions. Word has length 160 [2020-12-23 09:34:36,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:36,796 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4805 transitions. [2020-12-23 09:34:36,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:36,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4805 transitions. [2020-12-23 09:34:36,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:36,798 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:36,799 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] [2020-12-23 09:34:36,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 09:34:36,799 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:36,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:36,800 INFO L82 PathProgramCache]: Analyzing trace with hash -515669964, now seen corresponding path program 1 times [2020-12-23 09:34:36,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:36,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343599067] [2020-12-23 09:34:36,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:36,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:36,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343599067] [2020-12-23 09:34:36,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:36,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:36,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72778393] [2020-12-23 09:34:36,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:36,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:36,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:36,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:36,909 INFO L87 Difference]: Start difference. First operand 3255 states and 4805 transitions. Second operand 4 states. [2020-12-23 09:34:37,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:37,380 INFO L93 Difference]: Finished difference Result 7980 states and 11767 transitions. [2020-12-23 09:34:37,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:37,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:37,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:37,392 INFO L225 Difference]: With dead ends: 7980 [2020-12-23 09:34:37,392 INFO L226 Difference]: Without dead ends: 4750 [2020-12-23 09:34:37,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:37,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4750 states. [2020-12-23 09:34:37,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4750 to 3255. [2020-12-23 09:34:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:37,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4802 transitions. [2020-12-23 09:34:37,670 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4802 transitions. Word has length 160 [2020-12-23 09:34:37,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:37,670 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4802 transitions. [2020-12-23 09:34:37,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:37,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4802 transitions. [2020-12-23 09:34:37,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:37,673 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:37,673 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] [2020-12-23 09:34:37,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 09:34:37,673 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:37,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:37,675 INFO L82 PathProgramCache]: Analyzing trace with hash -97781262, now seen corresponding path program 1 times [2020-12-23 09:34:37,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:37,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306040074] [2020-12-23 09:34:37,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:37,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:37,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306040074] [2020-12-23 09:34:37,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:37,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:37,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827595814] [2020-12-23 09:34:37,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:37,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:37,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:37,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:37,746 INFO L87 Difference]: Start difference. First operand 3255 states and 4802 transitions. Second operand 4 states. [2020-12-23 09:34:38,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:38,161 INFO L93 Difference]: Finished difference Result 7978 states and 11757 transitions. [2020-12-23 09:34:38,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:38,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:38,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:38,172 INFO L225 Difference]: With dead ends: 7978 [2020-12-23 09:34:38,173 INFO L226 Difference]: Without dead ends: 4749 [2020-12-23 09:34:38,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:38,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4749 states. [2020-12-23 09:34:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4749 to 3255. [2020-12-23 09:34:38,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:38,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4799 transitions. [2020-12-23 09:34:38,387 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4799 transitions. Word has length 160 [2020-12-23 09:34:38,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:38,388 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4799 transitions. [2020-12-23 09:34:38,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:38,388 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4799 transitions. [2020-12-23 09:34:38,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:38,390 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:38,390 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] [2020-12-23 09:34:38,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 09:34:38,390 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:38,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:38,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1301172340, now seen corresponding path program 1 times [2020-12-23 09:34:38,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:38,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2542487] [2020-12-23 09:34:38,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:38,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:38,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2542487] [2020-12-23 09:34:38,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:38,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:34:38,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998332962] [2020-12-23 09:34:38,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:34:38,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:38,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:34:38,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:34:38,466 INFO L87 Difference]: Start difference. First operand 3255 states and 4799 transitions. Second operand 3 states. [2020-12-23 09:34:38,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:38,662 INFO L93 Difference]: Finished difference Result 6483 states and 9558 transitions. [2020-12-23 09:34:38,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:34:38,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-12-23 09:34:38,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:38,672 INFO L225 Difference]: With dead ends: 6483 [2020-12-23 09:34:38,672 INFO L226 Difference]: Without dead ends: 3255 [2020-12-23 09:34:38,680 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 09:34:38,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2020-12-23 09:34:38,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 3255. [2020-12-23 09:34:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:38,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4791 transitions. [2020-12-23 09:34:38,924 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4791 transitions. Word has length 160 [2020-12-23 09:34:38,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:38,924 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4791 transitions. [2020-12-23 09:34:38,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:34:38,925 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4791 transitions. [2020-12-23 09:34:38,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:38,927 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:38,927 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] [2020-12-23 09:34:38,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 09:34:38,927 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:38,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:38,928 INFO L82 PathProgramCache]: Analyzing trace with hash -293635856, now seen corresponding path program 1 times [2020-12-23 09:34:38,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:38,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365383716] [2020-12-23 09:34:38,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:39,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:39,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365383716] [2020-12-23 09:34:39,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:39,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:39,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039975879] [2020-12-23 09:34:39,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:39,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:39,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:39,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:39,023 INFO L87 Difference]: Start difference. First operand 3255 states and 4791 transitions. Second operand 4 states. [2020-12-23 09:34:39,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:39,374 INFO L93 Difference]: Finished difference Result 7974 states and 11726 transitions. [2020-12-23 09:34:39,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:39,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:39,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:39,388 INFO L225 Difference]: With dead ends: 7974 [2020-12-23 09:34:39,388 INFO L226 Difference]: Without dead ends: 4747 [2020-12-23 09:34:39,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:39,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4747 states. [2020-12-23 09:34:39,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4747 to 3255. [2020-12-23 09:34:39,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:39,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4788 transitions. [2020-12-23 09:34:39,606 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4788 transitions. Word has length 160 [2020-12-23 09:34:39,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:39,608 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4788 transitions. [2020-12-23 09:34:39,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:39,608 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4788 transitions. [2020-12-23 09:34:39,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:39,610 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:39,610 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] [2020-12-23 09:34:39,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 09:34:39,610 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:39,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:39,611 INFO L82 PathProgramCache]: Analyzing trace with hash 69830642, now seen corresponding path program 1 times [2020-12-23 09:34:39,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:39,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714677578] [2020-12-23 09:34:39,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:39,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714677578] [2020-12-23 09:34:39,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:39,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:39,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386365423] [2020-12-23 09:34:39,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:39,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:39,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:39,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:39,724 INFO L87 Difference]: Start difference. First operand 3255 states and 4788 transitions. Second operand 4 states. [2020-12-23 09:34:40,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:40,182 INFO L93 Difference]: Finished difference Result 7879 states and 11582 transitions. [2020-12-23 09:34:40,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:40,183 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:40,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:40,194 INFO L225 Difference]: With dead ends: 7879 [2020-12-23 09:34:40,195 INFO L226 Difference]: Without dead ends: 4654 [2020-12-23 09:34:40,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:40,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4654 states. [2020-12-23 09:34:40,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4654 to 3255. [2020-12-23 09:34:40,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:40,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4785 transitions. [2020-12-23 09:34:40,430 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4785 transitions. Word has length 160 [2020-12-23 09:34:40,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:40,431 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4785 transitions. [2020-12-23 09:34:40,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:40,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4785 transitions. [2020-12-23 09:34:40,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:40,433 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:40,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:34:40,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 09:34:40,434 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:40,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:40,435 INFO L82 PathProgramCache]: Analyzing trace with hash -475041932, now seen corresponding path program 1 times [2020-12-23 09:34:40,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:40,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44871513] [2020-12-23 09:34:40,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:40,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:40,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44871513] [2020-12-23 09:34:40,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:40,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:40,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878274097] [2020-12-23 09:34:40,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:40,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:40,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:40,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:40,570 INFO L87 Difference]: Start difference. First operand 3255 states and 4785 transitions. Second operand 4 states. [2020-12-23 09:34:41,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:41,164 INFO L93 Difference]: Finished difference Result 7877 states and 11572 transitions. [2020-12-23 09:34:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:41,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:41,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:41,177 INFO L225 Difference]: With dead ends: 7877 [2020-12-23 09:34:41,177 INFO L226 Difference]: Without dead ends: 4653 [2020-12-23 09:34:41,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:41,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4653 states. [2020-12-23 09:34:41,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4653 to 3255. [2020-12-23 09:34:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4782 transitions. [2020-12-23 09:34:41,428 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4782 transitions. Word has length 160 [2020-12-23 09:34:41,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:41,428 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4782 transitions. [2020-12-23 09:34:41,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:41,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4782 transitions. [2020-12-23 09:34:41,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:41,430 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:41,431 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] [2020-12-23 09:34:41,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 09:34:41,431 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:41,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:41,432 INFO L82 PathProgramCache]: Analyzing trace with hash 200118194, now seen corresponding path program 1 times [2020-12-23 09:34:41,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:41,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741814243] [2020-12-23 09:34:41,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:41,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741814243] [2020-12-23 09:34:41,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:41,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:34:41,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047164955] [2020-12-23 09:34:41,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:34:41,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:41,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:34:41,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:34:41,511 INFO L87 Difference]: Start difference. First operand 3255 states and 4782 transitions. Second operand 3 states. [2020-12-23 09:34:41,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:41,825 INFO L93 Difference]: Finished difference Result 6478 states and 9518 transitions. [2020-12-23 09:34:41,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:34:41,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-12-23 09:34:41,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:41,832 INFO L225 Difference]: With dead ends: 6478 [2020-12-23 09:34:41,832 INFO L226 Difference]: Without dead ends: 3255 [2020-12-23 09:34:41,837 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 09:34:41,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2020-12-23 09:34:42,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 3255. [2020-12-23 09:34:42,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:42,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4746 transitions. [2020-12-23 09:34:42,059 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4746 transitions. Word has length 160 [2020-12-23 09:34:42,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:42,059 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4746 transitions. [2020-12-23 09:34:42,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:34:42,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4746 transitions. [2020-12-23 09:34:42,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:42,061 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:42,062 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] [2020-12-23 09:34:42,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 09:34:42,062 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:42,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:42,063 INFO L82 PathProgramCache]: Analyzing trace with hash -319925257, now seen corresponding path program 1 times [2020-12-23 09:34:42,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:42,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75411529] [2020-12-23 09:34:42,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:42,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:42,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75411529] [2020-12-23 09:34:42,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:42,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:42,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912752171] [2020-12-23 09:34:42,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:42,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:42,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:42,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:42,135 INFO L87 Difference]: Start difference. First operand 3255 states and 4746 transitions. Second operand 4 states. [2020-12-23 09:34:42,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:42,651 INFO L93 Difference]: Finished difference Result 7873 states and 11473 transitions. [2020-12-23 09:34:42,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:42,652 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:42,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:42,663 INFO L225 Difference]: With dead ends: 7873 [2020-12-23 09:34:42,663 INFO L226 Difference]: Without dead ends: 4651 [2020-12-23 09:34:42,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:42,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4651 states. [2020-12-23 09:34:42,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4651 to 3255. [2020-12-23 09:34:42,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:42,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4743 transitions. [2020-12-23 09:34:42,962 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4743 transitions. Word has length 160 [2020-12-23 09:34:42,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:42,962 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4743 transitions. [2020-12-23 09:34:42,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:42,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4743 transitions. [2020-12-23 09:34:42,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:42,964 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:42,965 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] [2020-12-23 09:34:42,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 09:34:42,965 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:42,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:42,966 INFO L82 PathProgramCache]: Analyzing trace with hash -904696907, now seen corresponding path program 1 times [2020-12-23 09:34:42,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:42,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56534340] [2020-12-23 09:34:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:43,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:43,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56534340] [2020-12-23 09:34:43,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:43,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:43,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49333807] [2020-12-23 09:34:43,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:43,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:43,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:43,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:43,053 INFO L87 Difference]: Start difference. First operand 3255 states and 4743 transitions. Second operand 4 states. [2020-12-23 09:34:43,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:43,525 INFO L93 Difference]: Finished difference Result 7871 states and 11463 transitions. [2020-12-23 09:34:43,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:43,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:43,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:43,536 INFO L225 Difference]: With dead ends: 7871 [2020-12-23 09:34:43,537 INFO L226 Difference]: Without dead ends: 4650 [2020-12-23 09:34:43,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2020-12-23 09:34:43,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 3255. [2020-12-23 09:34:43,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:43,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4740 transitions. [2020-12-23 09:34:43,784 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4740 transitions. Word has length 160 [2020-12-23 09:34:43,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:43,784 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4740 transitions. [2020-12-23 09:34:43,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:43,784 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4740 transitions. [2020-12-23 09:34:43,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:43,786 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:43,787 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] [2020-12-23 09:34:43,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 09:34:43,787 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:43,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:43,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1339202505, now seen corresponding path program 1 times [2020-12-23 09:34:43,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:43,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356967] [2020-12-23 09:34:43,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:43,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356967] [2020-12-23 09:34:43,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:43,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:43,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245889439] [2020-12-23 09:34:43,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:43,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:43,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:43,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:43,855 INFO L87 Difference]: Start difference. First operand 3255 states and 4740 transitions. Second operand 4 states. [2020-12-23 09:34:44,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:44,408 INFO L93 Difference]: Finished difference Result 7869 states and 11453 transitions. [2020-12-23 09:34:44,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:44,409 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:44,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:44,419 INFO L225 Difference]: With dead ends: 7869 [2020-12-23 09:34:44,419 INFO L226 Difference]: Without dead ends: 4649 [2020-12-23 09:34:44,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4649 states. [2020-12-23 09:34:44,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4649 to 3255. [2020-12-23 09:34:44,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:44,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4737 transitions. [2020-12-23 09:34:44,676 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4737 transitions. Word has length 160 [2020-12-23 09:34:44,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:44,677 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4737 transitions. [2020-12-23 09:34:44,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:44,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4737 transitions. [2020-12-23 09:34:44,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:44,679 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:44,679 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] [2020-12-23 09:34:44,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 09:34:44,679 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:44,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:44,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1768860811, now seen corresponding path program 1 times [2020-12-23 09:34:44,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:44,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108139558] [2020-12-23 09:34:44,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:44,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108139558] [2020-12-23 09:34:44,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:44,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:44,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944569584] [2020-12-23 09:34:44,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:44,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:44,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:44,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:44,744 INFO L87 Difference]: Start difference. First operand 3255 states and 4737 transitions. Second operand 4 states. [2020-12-23 09:34:45,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:45,365 INFO L93 Difference]: Finished difference Result 7867 states and 11443 transitions. [2020-12-23 09:34:45,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:45,366 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:45,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:45,376 INFO L225 Difference]: With dead ends: 7867 [2020-12-23 09:34:45,376 INFO L226 Difference]: Without dead ends: 4648 [2020-12-23 09:34:45,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:45,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4648 states. [2020-12-23 09:34:45,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4648 to 3255. [2020-12-23 09:34:45,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:45,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4734 transitions. [2020-12-23 09:34:45,680 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4734 transitions. Word has length 160 [2020-12-23 09:34:45,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:45,680 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4734 transitions. [2020-12-23 09:34:45,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:45,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4734 transitions. [2020-12-23 09:34:45,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:45,682 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:45,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:34:45,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 09:34:45,683 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:45,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:45,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1819509879, now seen corresponding path program 1 times [2020-12-23 09:34:45,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:45,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938628958] [2020-12-23 09:34:45,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:45,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:45,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938628958] [2020-12-23 09:34:45,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:45,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:45,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340905375] [2020-12-23 09:34:45,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:45,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:45,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:45,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:45,764 INFO L87 Difference]: Start difference. First operand 3255 states and 4734 transitions. Second operand 4 states. [2020-12-23 09:34:46,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:46,200 INFO L93 Difference]: Finished difference Result 7863 states and 11429 transitions. [2020-12-23 09:34:46,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:46,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:46,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:46,211 INFO L225 Difference]: With dead ends: 7863 [2020-12-23 09:34:46,211 INFO L226 Difference]: Without dead ends: 4646 [2020-12-23 09:34:46,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:46,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4646 states. [2020-12-23 09:34:46,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4646 to 3255. [2020-12-23 09:34:46,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4731 transitions. [2020-12-23 09:34:46,545 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4731 transitions. Word has length 160 [2020-12-23 09:34:46,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:46,545 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4731 transitions. [2020-12-23 09:34:46,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:46,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4731 transitions. [2020-12-23 09:34:46,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:46,547 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:46,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:34:46,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 09:34:46,547 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:46,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:46,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1613623815, now seen corresponding path program 1 times [2020-12-23 09:34:46,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:46,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228164562] [2020-12-23 09:34:46,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:46,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228164562] [2020-12-23 09:34:46,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:46,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:46,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678520205] [2020-12-23 09:34:46,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:46,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:46,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:46,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:46,611 INFO L87 Difference]: Start difference. First operand 3255 states and 4731 transitions. Second operand 4 states. [2020-12-23 09:34:47,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:47,084 INFO L93 Difference]: Finished difference Result 7861 states and 11419 transitions. [2020-12-23 09:34:47,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:47,087 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:47,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:47,098 INFO L225 Difference]: With dead ends: 7861 [2020-12-23 09:34:47,098 INFO L226 Difference]: Without dead ends: 4645 [2020-12-23 09:34:47,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:47,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4645 states. [2020-12-23 09:34:47,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4645 to 3255. [2020-12-23 09:34:47,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:47,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4728 transitions. [2020-12-23 09:34:47,390 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4728 transitions. Word has length 160 [2020-12-23 09:34:47,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:47,391 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4728 transitions. [2020-12-23 09:34:47,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:47,391 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4728 transitions. [2020-12-23 09:34:47,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:47,392 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:47,392 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] [2020-12-23 09:34:47,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 09:34:47,393 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:47,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:47,393 INFO L82 PathProgramCache]: Analyzing trace with hash 630934583, now seen corresponding path program 1 times [2020-12-23 09:34:47,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:47,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337782220] [2020-12-23 09:34:47,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:47,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:47,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337782220] [2020-12-23 09:34:47,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:47,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:47,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887364121] [2020-12-23 09:34:47,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:47,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:47,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:47,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:47,488 INFO L87 Difference]: Start difference. First operand 3255 states and 4728 transitions. Second operand 4 states. [2020-12-23 09:34:48,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:48,020 INFO L93 Difference]: Finished difference Result 7859 states and 11409 transitions. [2020-12-23 09:34:48,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:48,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:48,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:48,025 INFO L225 Difference]: With dead ends: 7859 [2020-12-23 09:34:48,025 INFO L226 Difference]: Without dead ends: 4644 [2020-12-23 09:34:48,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:48,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4644 states. [2020-12-23 09:34:48,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4644 to 3255. [2020-12-23 09:34:48,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:48,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4725 transitions. [2020-12-23 09:34:48,315 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4725 transitions. Word has length 160 [2020-12-23 09:34:48,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:48,316 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4725 transitions. [2020-12-23 09:34:48,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:48,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4725 transitions. [2020-12-23 09:34:48,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:48,317 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:48,318 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] [2020-12-23 09:34:48,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 09:34:48,318 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:48,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:48,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1118981689, now seen corresponding path program 1 times [2020-12-23 09:34:48,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:48,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130538327] [2020-12-23 09:34:48,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:48,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130538327] [2020-12-23 09:34:48,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:48,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:48,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078123805] [2020-12-23 09:34:48,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:48,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:48,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:48,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:48,386 INFO L87 Difference]: Start difference. First operand 3255 states and 4725 transitions. Second operand 4 states. [2020-12-23 09:34:48,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:48,855 INFO L93 Difference]: Finished difference Result 7857 states and 11399 transitions. [2020-12-23 09:34:48,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:34:48,855 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-12-23 09:34:48,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:48,861 INFO L225 Difference]: With dead ends: 7857 [2020-12-23 09:34:48,861 INFO L226 Difference]: Without dead ends: 4643 [2020-12-23 09:34:48,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:48,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4643 states. [2020-12-23 09:34:49,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4643 to 3255. [2020-12-23 09:34:49,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:49,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4722 transitions. [2020-12-23 09:34:49,126 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4722 transitions. Word has length 160 [2020-12-23 09:34:49,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:49,127 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4722 transitions. [2020-12-23 09:34:49,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:34:49,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4722 transitions. [2020-12-23 09:34:49,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:49,128 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:49,128 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] [2020-12-23 09:34:49,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 09:34:49,129 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:49,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:49,129 INFO L82 PathProgramCache]: Analyzing trace with hash 26346487, now seen corresponding path program 1 times [2020-12-23 09:34:49,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:49,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422987866] [2020-12-23 09:34:49,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:49,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:49,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422987866] [2020-12-23 09:34:49,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:49,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:34:49,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796794728] [2020-12-23 09:34:49,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:34:49,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:49,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:34:49,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:34:49,186 INFO L87 Difference]: Start difference. First operand 3255 states and 4722 transitions. Second operand 3 states. [2020-12-23 09:34:49,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:49,468 INFO L93 Difference]: Finished difference Result 6468 states and 9387 transitions. [2020-12-23 09:34:49,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:34:49,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-12-23 09:34:49,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:49,472 INFO L225 Difference]: With dead ends: 6468 [2020-12-23 09:34:49,472 INFO L226 Difference]: Without dead ends: 3255 [2020-12-23 09:34:49,476 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 09:34:49,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2020-12-23 09:34:49,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 3255. [2020-12-23 09:34:49,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-12-23 09:34:49,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4686 transitions. [2020-12-23 09:34:49,679 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4686 transitions. Word has length 160 [2020-12-23 09:34:49,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:49,679 INFO L481 AbstractCegarLoop]: Abstraction has 3255 states and 4686 transitions. [2020-12-23 09:34:49,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:34:49,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4686 transitions. [2020-12-23 09:34:49,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-23 09:34:49,680 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:49,681 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] [2020-12-23 09:34:49,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-23 09:34:49,681 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:49,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:49,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1759277819, now seen corresponding path program 1 times [2020-12-23 09:34:49,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:49,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221909784] [2020-12-23 09:34:49,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:49,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:34:49,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221909784] [2020-12-23 09:34:49,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:49,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:34:49,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239446526] [2020-12-23 09:34:49,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:34:49,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:49,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:34:49,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:34:49,741 INFO L87 Difference]: Start difference. First operand 3255 states and 4686 transitions. Second operand 3 states. [2020-12-23 09:34:50,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:50,323 INFO L93 Difference]: Finished difference Result 9526 states and 13699 transitions. [2020-12-23 09:34:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:34:50,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-12-23 09:34:50,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:50,330 INFO L225 Difference]: With dead ends: 9526 [2020-12-23 09:34:50,330 INFO L226 Difference]: Without dead ends: 6315 [2020-12-23 09:34:50,335 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 09:34:50,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6315 states. [2020-12-23 09:34:50,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6315 to 6137. [2020-12-23 09:34:50,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6137 states. [2020-12-23 09:34:50,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6137 states to 6137 states and 8792 transitions. [2020-12-23 09:34:50,779 INFO L78 Accepts]: Start accepts. Automaton has 6137 states and 8792 transitions. Word has length 160 [2020-12-23 09:34:50,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:50,779 INFO L481 AbstractCegarLoop]: Abstraction has 6137 states and 8792 transitions. [2020-12-23 09:34:50,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:34:50,779 INFO L276 IsEmpty]: Start isEmpty. Operand 6137 states and 8792 transitions. [2020-12-23 09:34:50,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:34:50,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:50,785 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:34:50,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-23 09:34:50,785 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:50,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:50,786 INFO L82 PathProgramCache]: Analyzing trace with hash -837601248, now seen corresponding path program 1 times [2020-12-23 09:34:50,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:50,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209016455] [2020-12-23 09:34:50,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:50,885 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:34:50,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209016455] [2020-12-23 09:34:50,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:50,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:34:50,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790929576] [2020-12-23 09:34:50,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:34:50,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:50,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:34:50,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:50,888 INFO L87 Difference]: Start difference. First operand 6137 states and 8792 transitions. Second operand 5 states. [2020-12-23 09:34:52,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:52,234 INFO L93 Difference]: Finished difference Result 18165 states and 26033 transitions. [2020-12-23 09:34:52,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:34:52,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-12-23 09:34:52,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:52,253 INFO L225 Difference]: With dead ends: 18165 [2020-12-23 09:34:52,253 INFO L226 Difference]: Without dead ends: 12076 [2020-12-23 09:34:52,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:34:52,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12076 states. [2020-12-23 09:34:52,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12076 to 6224. [2020-12-23 09:34:52,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6224 states. [2020-12-23 09:34:52,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6224 states to 6224 states and 8851 transitions. [2020-12-23 09:34:52,827 INFO L78 Accepts]: Start accepts. Automaton has 6224 states and 8851 transitions. Word has length 261 [2020-12-23 09:34:52,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:52,828 INFO L481 AbstractCegarLoop]: Abstraction has 6224 states and 8851 transitions. [2020-12-23 09:34:52,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:34:52,828 INFO L276 IsEmpty]: Start isEmpty. Operand 6224 states and 8851 transitions. [2020-12-23 09:34:52,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:34:52,833 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:52,834 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:34:52,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-23 09:34:52,834 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:52,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:52,835 INFO L82 PathProgramCache]: Analyzing trace with hash 581072284, now seen corresponding path program 1 times [2020-12-23 09:34:52,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:52,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705930194] [2020-12-23 09:34:52,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:52,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:34:52,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705930194] [2020-12-23 09:34:52,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:52,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:34:52,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641458890] [2020-12-23 09:34:52,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:34:52,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:52,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:34:52,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:52,935 INFO L87 Difference]: Start difference. First operand 6224 states and 8851 transitions. Second operand 5 states. [2020-12-23 09:34:54,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:54,569 INFO L93 Difference]: Finished difference Result 23776 states and 33867 transitions. [2020-12-23 09:34:54,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:34:54,569 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-12-23 09:34:54,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:54,587 INFO L225 Difference]: With dead ends: 23776 [2020-12-23 09:34:54,587 INFO L226 Difference]: Without dead ends: 17607 [2020-12-23 09:34:54,597 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 09:34:54,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17607 states. [2020-12-23 09:34:55,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17607 to 6395. [2020-12-23 09:34:55,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6395 states. [2020-12-23 09:34:55,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6395 states to 6395 states and 9022 transitions. [2020-12-23 09:34:55,238 INFO L78 Accepts]: Start accepts. Automaton has 6395 states and 9022 transitions. Word has length 261 [2020-12-23 09:34:55,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:55,238 INFO L481 AbstractCegarLoop]: Abstraction has 6395 states and 9022 transitions. [2020-12-23 09:34:55,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:34:55,239 INFO L276 IsEmpty]: Start isEmpty. Operand 6395 states and 9022 transitions. [2020-12-23 09:34:55,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:34:55,243 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:55,244 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:34:55,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-23 09:34:55,244 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:55,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:55,244 INFO L82 PathProgramCache]: Analyzing trace with hash -292593318, now seen corresponding path program 1 times [2020-12-23 09:34:55,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:55,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264051331] [2020-12-23 09:34:55,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:55,381 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:34:55,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264051331] [2020-12-23 09:34:55,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:55,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:34:55,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456135670] [2020-12-23 09:34:55,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:34:55,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:55,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:34:55,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:55,384 INFO L87 Difference]: Start difference. First operand 6395 states and 9022 transitions. Second operand 5 states. [2020-12-23 09:34:56,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:56,330 INFO L93 Difference]: Finished difference Result 15383 states and 21650 transitions. [2020-12-23 09:34:56,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:34:56,331 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-12-23 09:34:56,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:56,342 INFO L225 Difference]: With dead ends: 15383 [2020-12-23 09:34:56,343 INFO L226 Difference]: Without dead ends: 9053 [2020-12-23 09:34:56,350 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 09:34:56,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9053 states. [2020-12-23 09:34:56,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9053 to 6407. [2020-12-23 09:34:56,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6407 states. [2020-12-23 09:34:57,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6407 states to 6407 states and 8981 transitions. [2020-12-23 09:34:57,005 INFO L78 Accepts]: Start accepts. Automaton has 6407 states and 8981 transitions. Word has length 261 [2020-12-23 09:34:57,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:57,006 INFO L481 AbstractCegarLoop]: Abstraction has 6407 states and 8981 transitions. [2020-12-23 09:34:57,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:34:57,006 INFO L276 IsEmpty]: Start isEmpty. Operand 6407 states and 8981 transitions. [2020-12-23 09:34:57,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:34:57,011 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:57,012 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:34:57,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-23 09:34:57,012 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:57,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:57,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1171388630, now seen corresponding path program 1 times [2020-12-23 09:34:57,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:57,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433747745] [2020-12-23 09:34:57,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:34:57,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433747745] [2020-12-23 09:34:57,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:57,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:34:57,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931948679] [2020-12-23 09:34:57,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:34:57,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:57,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:34:57,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:34:57,117 INFO L87 Difference]: Start difference. First operand 6407 states and 8981 transitions. Second operand 5 states. [2020-12-23 09:34:58,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:34:58,821 INFO L93 Difference]: Finished difference Result 23493 states and 33128 transitions. [2020-12-23 09:34:58,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:34:58,821 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-12-23 09:34:58,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:34:58,850 INFO L225 Difference]: With dead ends: 23493 [2020-12-23 09:34:58,850 INFO L226 Difference]: Without dead ends: 17158 [2020-12-23 09:34:58,861 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 09:34:58,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17158 states. [2020-12-23 09:34:59,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17158 to 6578. [2020-12-23 09:34:59,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6578 states. [2020-12-23 09:34:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6578 states to 6578 states and 9152 transitions. [2020-12-23 09:34:59,573 INFO L78 Accepts]: Start accepts. Automaton has 6578 states and 9152 transitions. Word has length 261 [2020-12-23 09:34:59,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:34:59,573 INFO L481 AbstractCegarLoop]: Abstraction has 6578 states and 9152 transitions. [2020-12-23 09:34:59,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:34:59,573 INFO L276 IsEmpty]: Start isEmpty. Operand 6578 states and 9152 transitions. [2020-12-23 09:34:59,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:34:59,578 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:34:59,578 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:34:59,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-23 09:34:59,579 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:34:59,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:34:59,579 INFO L82 PathProgramCache]: Analyzing trace with hash -823914092, now seen corresponding path program 1 times [2020-12-23 09:34:59,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:34:59,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994310861] [2020-12-23 09:34:59,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:34:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:34:59,683 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:34:59,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994310861] [2020-12-23 09:34:59,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:34:59,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:34:59,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320785521] [2020-12-23 09:34:59,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:34:59,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:34:59,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:34:59,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:34:59,686 INFO L87 Difference]: Start difference. First operand 6578 states and 9152 transitions. Second operand 4 states. [2020-12-23 09:35:01,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:35:01,443 INFO L93 Difference]: Finished difference Result 22308 states and 30992 transitions. [2020-12-23 09:35:01,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:35:01,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 261 [2020-12-23 09:35:01,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:35:01,460 INFO L225 Difference]: With dead ends: 22308 [2020-12-23 09:35:01,460 INFO L226 Difference]: Without dead ends: 15807 [2020-12-23 09:35:01,469 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 09:35:01,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15807 states. [2020-12-23 09:35:02,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15807 to 12533. [2020-12-23 09:35:02,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12533 states. [2020-12-23 09:35:02,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12533 states to 12533 states and 17366 transitions. [2020-12-23 09:35:02,720 INFO L78 Accepts]: Start accepts. Automaton has 12533 states and 17366 transitions. Word has length 261 [2020-12-23 09:35:02,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:35:02,720 INFO L481 AbstractCegarLoop]: Abstraction has 12533 states and 17366 transitions. [2020-12-23 09:35:02,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:35:02,721 INFO L276 IsEmpty]: Start isEmpty. Operand 12533 states and 17366 transitions. [2020-12-23 09:35:02,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:35:02,727 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:35:02,727 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:02,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-23 09:35:02,727 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:35:02,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:35:02,728 INFO L82 PathProgramCache]: Analyzing trace with hash 2137054418, now seen corresponding path program 1 times [2020-12-23 09:35:02,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:35:02,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358663985] [2020-12-23 09:35:02,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:35:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:35:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:35:02,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358663985] [2020-12-23 09:35:02,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:35:02,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:35:02,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633775069] [2020-12-23 09:35:02,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:35:02,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:35:02,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:35:02,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:35:02,833 INFO L87 Difference]: Start difference. First operand 12533 states and 17366 transitions. Second operand 5 states. [2020-12-23 09:35:05,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:35:05,283 INFO L93 Difference]: Finished difference Result 35331 states and 49220 transitions. [2020-12-23 09:35:05,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:35:05,284 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-12-23 09:35:05,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:35:05,304 INFO L225 Difference]: With dead ends: 35331 [2020-12-23 09:35:05,305 INFO L226 Difference]: Without dead ends: 22879 [2020-12-23 09:35:05,319 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 09:35:05,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22879 states. [2020-12-23 09:35:06,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22879 to 12701. [2020-12-23 09:35:06,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12701 states. [2020-12-23 09:35:06,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12701 states to 12701 states and 17481 transitions. [2020-12-23 09:35:06,687 INFO L78 Accepts]: Start accepts. Automaton has 12701 states and 17481 transitions. Word has length 261 [2020-12-23 09:35:06,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:35:06,687 INFO L481 AbstractCegarLoop]: Abstraction has 12701 states and 17481 transitions. [2020-12-23 09:35:06,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:35:06,688 INFO L276 IsEmpty]: Start isEmpty. Operand 12701 states and 17481 transitions. [2020-12-23 09:35:06,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:35:06,693 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:35:06,694 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:06,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-23 09:35:06,694 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:35:06,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:35:06,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1743925682, now seen corresponding path program 1 times [2020-12-23 09:35:06,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:35:06,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712731082] [2020-12-23 09:35:06,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:35:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:35:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:35:06,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712731082] [2020-12-23 09:35:06,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:35:06,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:35:06,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443756498] [2020-12-23 09:35:06,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:35:06,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:35:06,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:35:06,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:35:06,807 INFO L87 Difference]: Start difference. First operand 12701 states and 17481 transitions. Second operand 4 states. [2020-12-23 09:35:10,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:35:10,266 INFO L93 Difference]: Finished difference Result 43288 states and 59497 transitions. [2020-12-23 09:35:10,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:35:10,267 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 261 [2020-12-23 09:35:10,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:35:10,297 INFO L225 Difference]: With dead ends: 43288 [2020-12-23 09:35:10,297 INFO L226 Difference]: Without dead ends: 30670 [2020-12-23 09:35:10,308 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 09:35:10,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30670 states. [2020-12-23 09:35:12,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30670 to 24320. [2020-12-23 09:35:12,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24320 states. [2020-12-23 09:35:12,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24320 states to 24320 states and 33342 transitions. [2020-12-23 09:35:12,764 INFO L78 Accepts]: Start accepts. Automaton has 24320 states and 33342 transitions. Word has length 261 [2020-12-23 09:35:12,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:35:12,764 INFO L481 AbstractCegarLoop]: Abstraction has 24320 states and 33342 transitions. [2020-12-23 09:35:12,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:35:12,764 INFO L276 IsEmpty]: Start isEmpty. Operand 24320 states and 33342 transitions. [2020-12-23 09:35:12,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:35:12,775 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:35:12,775 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:12,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-23 09:35:12,776 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:35:12,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:35:12,776 INFO L82 PathProgramCache]: Analyzing trace with hash -2000012691, now seen corresponding path program 1 times [2020-12-23 09:35:12,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:35:12,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291190753] [2020-12-23 09:35:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:35:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:35:12,869 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:35:12,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291190753] [2020-12-23 09:35:12,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:35:12,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:35:12,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310250965] [2020-12-23 09:35:12,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:35:12,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:35:12,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:35:12,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:35:12,871 INFO L87 Difference]: Start difference. First operand 24320 states and 33342 transitions. Second operand 5 states. [2020-12-23 09:35:17,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:35:17,681 INFO L93 Difference]: Finished difference Result 67969 states and 93773 transitions. [2020-12-23 09:35:17,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:35:17,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-12-23 09:35:17,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:35:17,727 INFO L225 Difference]: With dead ends: 67969 [2020-12-23 09:35:17,727 INFO L226 Difference]: Without dead ends: 43736 [2020-12-23 09:35:17,748 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 09:35:17,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43736 states. [2020-12-23 09:35:20,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43736 to 24644. [2020-12-23 09:35:20,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24644 states. [2020-12-23 09:35:21,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24644 states to 24644 states and 33565 transitions. [2020-12-23 09:35:21,001 INFO L78 Accepts]: Start accepts. Automaton has 24644 states and 33565 transitions. Word has length 261 [2020-12-23 09:35:21,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:35:21,001 INFO L481 AbstractCegarLoop]: Abstraction has 24644 states and 33565 transitions. [2020-12-23 09:35:21,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:35:21,001 INFO L276 IsEmpty]: Start isEmpty. Operand 24644 states and 33565 transitions. [2020-12-23 09:35:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:35:21,013 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:35:21,013 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:21,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-23 09:35:21,013 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:35:21,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:35:21,014 INFO L82 PathProgramCache]: Analyzing trace with hash 477690089, now seen corresponding path program 1 times [2020-12-23 09:35:21,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:35:21,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961089283] [2020-12-23 09:35:21,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:35:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:35:21,181 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:35:21,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961089283] [2020-12-23 09:35:21,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:35:21,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:35:21,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941633874] [2020-12-23 09:35:21,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:35:21,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:35:21,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:35:21,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:35:21,183 INFO L87 Difference]: Start difference. First operand 24644 states and 33565 transitions. Second operand 4 states. [2020-12-23 09:35:27,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:35:27,569 INFO L93 Difference]: Finished difference Result 84017 states and 114272 transitions. [2020-12-23 09:35:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:35:27,570 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 261 [2020-12-23 09:35:27,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:35:27,639 INFO L225 Difference]: With dead ends: 84017 [2020-12-23 09:35:27,639 INFO L226 Difference]: Without dead ends: 59469 [2020-12-23 09:35:27,661 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 09:35:27,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59469 states. [2020-12-23 09:35:33,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59469 to 47283. [2020-12-23 09:35:33,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47283 states. [2020-12-23 09:35:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47283 states to 47283 states and 64158 transitions. [2020-12-23 09:35:33,498 INFO L78 Accepts]: Start accepts. Automaton has 47283 states and 64158 transitions. Word has length 261 [2020-12-23 09:35:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:35:33,499 INFO L481 AbstractCegarLoop]: Abstraction has 47283 states and 64158 transitions. [2020-12-23 09:35:33,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:35:33,499 INFO L276 IsEmpty]: Start isEmpty. Operand 47283 states and 64158 transitions. [2020-12-23 09:35:33,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:35:33,515 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:35:33,516 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:33,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-23 09:35:33,516 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:35:33,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:35:33,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1638442104, now seen corresponding path program 1 times [2020-12-23 09:35:33,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:35:33,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563841213] [2020-12-23 09:35:33,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:35:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:35:33,612 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:35:33,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563841213] [2020-12-23 09:35:33,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:35:33,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:35:33,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256671842] [2020-12-23 09:35:33,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:35:33,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:35:33,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:35:33,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:35:33,615 INFO L87 Difference]: Start difference. First operand 47283 states and 64158 transitions. Second operand 5 states. [2020-12-23 09:35:43,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:35:43,000 INFO L93 Difference]: Finished difference Result 129390 states and 176709 transitions. [2020-12-23 09:35:43,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:35:43,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-12-23 09:35:43,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:35:43,076 INFO L225 Difference]: With dead ends: 129390 [2020-12-23 09:35:43,077 INFO L226 Difference]: Without dead ends: 82207 [2020-12-23 09:35:43,111 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 09:35:43,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82207 states. [2020-12-23 09:35:49,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82207 to 47907. [2020-12-23 09:35:49,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47907 states. [2020-12-23 09:35:49,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47907 states to 47907 states and 64589 transitions. [2020-12-23 09:35:49,289 INFO L78 Accepts]: Start accepts. Automaton has 47907 states and 64589 transitions. Word has length 261 [2020-12-23 09:35:49,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:35:49,289 INFO L481 AbstractCegarLoop]: Abstraction has 47907 states and 64589 transitions. [2020-12-23 09:35:49,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:35:49,289 INFO L276 IsEmpty]: Start isEmpty. Operand 47907 states and 64589 transitions. [2020-12-23 09:35:49,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:35:49,306 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:35:49,306 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:49,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-23 09:35:49,306 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:35:49,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:35:49,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1328739332, now seen corresponding path program 1 times [2020-12-23 09:35:49,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:35:49,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174793956] [2020-12-23 09:35:49,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:35:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:35:49,525 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:35:49,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174793956] [2020-12-23 09:35:49,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:35:49,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:35:49,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15154910] [2020-12-23 09:35:49,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:35:49,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:35:49,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:35:49,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:35:49,527 INFO L87 Difference]: Start difference. First operand 47907 states and 64589 transitions. Second operand 5 states. [2020-12-23 09:36:02,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:36:02,960 INFO L93 Difference]: Finished difference Result 161070 states and 219158 transitions. [2020-12-23 09:36:02,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:36:02,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-12-23 09:36:02,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:36:03,092 INFO L225 Difference]: With dead ends: 161070 [2020-12-23 09:36:03,092 INFO L226 Difference]: Without dead ends: 113270 [2020-12-23 09:36:03,137 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 09:36:03,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113270 states. [2020-12-23 09:36:10,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113270 to 49110. [2020-12-23 09:36:10,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49110 states. [2020-12-23 09:36:10,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49110 states to 49110 states and 65792 transitions. [2020-12-23 09:36:10,234 INFO L78 Accepts]: Start accepts. Automaton has 49110 states and 65792 transitions. Word has length 261 [2020-12-23 09:36:10,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:36:10,234 INFO L481 AbstractCegarLoop]: Abstraction has 49110 states and 65792 transitions. [2020-12-23 09:36:10,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:36:10,235 INFO L276 IsEmpty]: Start isEmpty. Operand 49110 states and 65792 transitions. [2020-12-23 09:36:10,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:36:10,249 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:36:10,250 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:36:10,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-23 09:36:10,250 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:36:10,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:36:10,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1837518146, now seen corresponding path program 1 times [2020-12-23 09:36:10,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:36:10,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258240053] [2020-12-23 09:36:10,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:36:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:36:10,346 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:36:10,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258240053] [2020-12-23 09:36:10,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:36:10,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:36:10,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631917019] [2020-12-23 09:36:10,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:36:10,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:36:10,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:36:10,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:36:10,348 INFO L87 Difference]: Start difference. First operand 49110 states and 65792 transitions. Second operand 4 states. [2020-12-23 09:36:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:36:25,692 INFO L93 Difference]: Finished difference Result 167165 states and 223639 transitions. [2020-12-23 09:36:25,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:36:25,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 261 [2020-12-23 09:36:25,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:36:25,835 INFO L225 Difference]: With dead ends: 167165 [2020-12-23 09:36:25,835 INFO L226 Difference]: Without dead ends: 118167 [2020-12-23 09:36:25,895 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 09:36:26,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118167 states. [2020-12-23 09:36:38,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118167 to 94261. [2020-12-23 09:36:38,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94261 states. [2020-12-23 09:36:38,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94261 states to 94261 states and 125837 transitions. [2020-12-23 09:36:38,724 INFO L78 Accepts]: Start accepts. Automaton has 94261 states and 125837 transitions. Word has length 261 [2020-12-23 09:36:38,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:36:38,725 INFO L481 AbstractCegarLoop]: Abstraction has 94261 states and 125837 transitions. [2020-12-23 09:36:38,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:36:38,725 INFO L276 IsEmpty]: Start isEmpty. Operand 94261 states and 125837 transitions. [2020-12-23 09:36:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:36:38,748 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:36:38,748 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:36:38,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-23 09:36:38,749 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:36:38,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:36:38,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1270105856, now seen corresponding path program 1 times [2020-12-23 09:36:38,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:36:38,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287627127] [2020-12-23 09:36:38,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:36:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:36:38,844 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:36:38,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287627127] [2020-12-23 09:36:38,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:36:38,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:36:38,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413849318] [2020-12-23 09:36:38,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:36:38,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:36:38,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:36:38,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:36:38,847 INFO L87 Difference]: Start difference. First operand 94261 states and 125837 transitions. Second operand 5 states. [2020-12-23 09:36:59,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:36:59,762 INFO L93 Difference]: Finished difference Result 252058 states and 338668 transitions. [2020-12-23 09:36:59,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:36:59,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-12-23 09:36:59,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:00,126 INFO L225 Difference]: With dead ends: 252058 [2020-12-23 09:37:00,126 INFO L226 Difference]: Without dead ends: 157913 [2020-12-23 09:37:00,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:37:00,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157913 states. [2020-12-23 09:37:13,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157913 to 95461. [2020-12-23 09:37:13,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95461 states. [2020-12-23 09:37:14,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95461 states to 95461 states and 126668 transitions. [2020-12-23 09:37:14,202 INFO L78 Accepts]: Start accepts. Automaton has 95461 states and 126668 transitions. Word has length 261 [2020-12-23 09:37:14,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:37:14,203 INFO L481 AbstractCegarLoop]: Abstraction has 95461 states and 126668 transitions. [2020-12-23 09:37:14,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:37:14,203 INFO L276 IsEmpty]: Start isEmpty. Operand 95461 states and 126668 transitions. [2020-12-23 09:37:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-23 09:37:14,234 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:37:14,235 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:37:14,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-23 09:37:14,235 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:37:14,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:37:14,236 INFO L82 PathProgramCache]: Analyzing trace with hash 189475708, now seen corresponding path program 1 times [2020-12-23 09:37:14,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:37:14,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184377372] [2020-12-23 09:37:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:37:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:37:14,331 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:37:14,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184377372] [2020-12-23 09:37:14,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:37:14,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:37:14,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443037631] [2020-12-23 09:37:14,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:37:14,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:37:14,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:37:14,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:37:14,333 INFO L87 Difference]: Start difference. First operand 95461 states and 126668 transitions. Second operand 5 states. [2020-12-23 09:37:43,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:37:43,131 INFO L93 Difference]: Finished difference Result 309510 states and 414297 transitions. [2020-12-23 09:37:43,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:37:43,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-12-23 09:37:43,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:37:43,467 INFO L225 Difference]: With dead ends: 309510 [2020-12-23 09:37:43,467 INFO L226 Difference]: Without dead ends: 214172 [2020-12-23 09:37:43,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:37:43,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214172 states.