/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/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 19:33:12,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 19:33:12,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 19:33:12,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 19:33:12,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 19:33:12,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 19:33:12,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 19:33:12,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 19:33:12,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 19:33:12,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 19:33:12,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 19:33:12,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 19:33:12,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 19:33:12,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 19:33:12,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 19:33:12,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 19:33:12,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 19:33:12,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 19:33:12,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 19:33:12,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 19:33:12,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 19:33:12,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 19:33:12,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 19:33:12,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 19:33:12,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 19:33:12,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 19:33:12,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 19:33:12,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 19:33:12,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 19:33:12,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 19:33:12,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 19:33:12,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 19:33:12,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 19:33:12,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 19:33:12,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 19:33:12,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 19:33:12,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 19:33:12,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 19:33:12,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 19:33:12,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 19:33:12,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 19:33:12,170 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 19:33:12,218 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 19:33:12,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 19:33:12,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 19:33:12,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 19:33:12,224 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 19:33:12,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 19:33:12,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 19:33:12,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 19:33:12,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 19:33:12,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 19:33:12,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 19:33:12,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 19:33:12,227 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 19:33:12,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 19:33:12,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 19:33:12,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 19:33:12,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 19:33:12,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 19:33:12,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 19:33:12,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 19:33:12,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 19:33:12,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 19:33:12,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 19:33:12,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 19:33:12,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 19:33:12,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 19:33:12,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 19:33:12,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 19:33:12,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 19:33:12,681 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 19:33:12,681 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 19:33:12,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2021-01-06 19:33:12,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/61dd89c3d/864b9b3d9095414ba5840462190611a1/FLAGee69ec150 [2021-01-06 19:33:13,402 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 19:33:13,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2021-01-06 19:33:13,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/61dd89c3d/864b9b3d9095414ba5840462190611a1/FLAGee69ec150 [2021-01-06 19:33:13,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/61dd89c3d/864b9b3d9095414ba5840462190611a1 [2021-01-06 19:33:13,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 19:33:13,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 19:33:13,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 19:33:13,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 19:33:13,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 19:33:13,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:33:13" (1/1) ... [2021-01-06 19:33:13,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e6dc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:13, skipping insertion in model container [2021-01-06 19:33:13,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:33:13" (1/1) ... [2021-01-06 19:33:13,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 19:33:13,796 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~ini_bool~0,] left hand side expression in assignment: lhs: VariableLHS[~ini_int~0,] left hand side expression in assignment: lhs: VariableLHS[~var~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~temp_count~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___10~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___11~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___12~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___13~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___14~0,] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~next_state~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~next_state~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~next_state~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~VALUE1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~c1~0,] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i2~0,] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i2~0,] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~c1~0,] [2021-01-06 19:33:14,040 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/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c[12020,12033] [2021-01-06 19:33:14,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:33:14,071 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~ini_bool~0,] left hand side expression in assignment: lhs: VariableLHS[~ini_int~0,] left hand side expression in assignment: lhs: VariableLHS[~var~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~temp_count~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___10~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___11~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___12~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___13~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___14~0,] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~next_state~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~next_state~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~next_state~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~VALUE1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~c1~0,] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i2~0,] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i2~0,] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~c1~0,] [2021-01-06 19:33:14,194 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/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c[12020,12033] [2021-01-06 19:33:14,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:33:14,218 INFO L208 MainTranslator]: Completed translation [2021-01-06 19:33:14,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14 WrapperNode [2021-01-06 19:33:14,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 19:33:14,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 19:33:14,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 19:33:14,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 19:33:14,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14" (1/1) ... [2021-01-06 19:33:14,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14" (1/1) ... [2021-01-06 19:33:14,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 19:33:14,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 19:33:14,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 19:33:14,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 19:33:14,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14" (1/1) ... [2021-01-06 19:33:14,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14" (1/1) ... [2021-01-06 19:33:14,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14" (1/1) ... [2021-01-06 19:33:14,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14" (1/1) ... [2021-01-06 19:33:14,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14" (1/1) ... [2021-01-06 19:33:14,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14" (1/1) ... [2021-01-06 19:33:14,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14" (1/1) ... [2021-01-06 19:33:14,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 19:33:14,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 19:33:14,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 19:33:14,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 19:33:14,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 19:33:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 19:33:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 19:33:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 19:33:14,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 19:33:16,605 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 19:33:16,605 INFO L299 CfgBuilder]: Removed 183 assume(true) statements. [2021-01-06 19:33:16,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:33:16 BoogieIcfgContainer [2021-01-06 19:33:16,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 19:33:16,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 19:33:16,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 19:33:16,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 19:33:16,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 07:33:13" (1/3) ... [2021-01-06 19:33:16,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bbe54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:33:16, skipping insertion in model container [2021-01-06 19:33:16,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14" (2/3) ... [2021-01-06 19:33:16,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bbe54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:33:16, skipping insertion in model container [2021-01-06 19:33:16,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:33:16" (3/3) ... [2021-01-06 19:33:16,617 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2021-01-06 19:33:16,624 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 19:33:16,630 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 37 error locations. [2021-01-06 19:33:16,649 INFO L253 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2021-01-06 19:33:16,681 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 19:33:16,681 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 19:33:16,681 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 19:33:16,681 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 19:33:16,682 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 19:33:16,682 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 19:33:16,682 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 19:33:16,682 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 19:33:16,711 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states. [2021-01-06 19:33:16,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 19:33:16,722 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:16,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:16,723 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:16,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:16,732 INFO L82 PathProgramCache]: Analyzing trace with hash 595705480, now seen corresponding path program 1 times [2021-01-06 19:33:16,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:16,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530734083] [2021-01-06 19:33:16,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:17,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530734083] [2021-01-06 19:33:17,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:17,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:17,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619108798] [2021-01-06 19:33:17,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:17,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:17,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:17,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:17,052 INFO L87 Difference]: Start difference. First operand 521 states. Second operand 3 states. [2021-01-06 19:33:17,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:17,396 INFO L93 Difference]: Finished difference Result 1245 states and 2060 transitions. [2021-01-06 19:33:17,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:17,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-01-06 19:33:17,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:17,419 INFO L225 Difference]: With dead ends: 1245 [2021-01-06 19:33:17,420 INFO L226 Difference]: Without dead ends: 726 [2021-01-06 19:33:17,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:17,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-01-06 19:33:17,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 457. [2021-01-06 19:33:17,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2021-01-06 19:33:17,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 712 transitions. [2021-01-06 19:33:17,515 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 712 transitions. Word has length 9 [2021-01-06 19:33:17,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:17,516 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 712 transitions. [2021-01-06 19:33:17,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:17,516 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 712 transitions. [2021-01-06 19:33:17,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 19:33:17,518 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:17,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:17,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 19:33:17,520 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:17,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:17,522 INFO L82 PathProgramCache]: Analyzing trace with hash -503954138, now seen corresponding path program 1 times [2021-01-06 19:33:17,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:17,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964548606] [2021-01-06 19:33:17,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:17,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:17,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964548606] [2021-01-06 19:33:17,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:17,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:17,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689188259] [2021-01-06 19:33:17,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:17,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:17,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:17,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:17,683 INFO L87 Difference]: Start difference. First operand 457 states and 712 transitions. Second operand 3 states. [2021-01-06 19:33:17,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:17,762 INFO L93 Difference]: Finished difference Result 1131 states and 1746 transitions. [2021-01-06 19:33:17,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:17,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-01-06 19:33:17,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:17,768 INFO L225 Difference]: With dead ends: 1131 [2021-01-06 19:33:17,768 INFO L226 Difference]: Without dead ends: 676 [2021-01-06 19:33:17,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:17,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2021-01-06 19:33:17,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 424. [2021-01-06 19:33:17,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2021-01-06 19:33:17,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 654 transitions. [2021-01-06 19:33:17,791 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 654 transitions. Word has length 10 [2021-01-06 19:33:17,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:17,791 INFO L481 AbstractCegarLoop]: Abstraction has 424 states and 654 transitions. [2021-01-06 19:33:17,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:17,792 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 654 transitions. [2021-01-06 19:33:17,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 19:33:17,793 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:17,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:17,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 19:33:17,794 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:17,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:17,794 INFO L82 PathProgramCache]: Analyzing trace with hash -248055967, now seen corresponding path program 1 times [2021-01-06 19:33:17,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:17,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276389921] [2021-01-06 19:33:17,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:17,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:17,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276389921] [2021-01-06 19:33:17,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:17,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:17,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731278667] [2021-01-06 19:33:17,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:17,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:17,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:17,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:17,877 INFO L87 Difference]: Start difference. First operand 424 states and 654 transitions. Second operand 3 states. [2021-01-06 19:33:17,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:17,970 INFO L93 Difference]: Finished difference Result 1250 states and 1933 transitions. [2021-01-06 19:33:17,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:17,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2021-01-06 19:33:17,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:17,978 INFO L225 Difference]: With dead ends: 1250 [2021-01-06 19:33:17,978 INFO L226 Difference]: Without dead ends: 836 [2021-01-06 19:33:17,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:17,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2021-01-06 19:33:18,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 428. [2021-01-06 19:33:18,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2021-01-06 19:33:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 658 transitions. [2021-01-06 19:33:18,008 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 658 transitions. Word has length 14 [2021-01-06 19:33:18,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:18,009 INFO L481 AbstractCegarLoop]: Abstraction has 428 states and 658 transitions. [2021-01-06 19:33:18,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 658 transitions. [2021-01-06 19:33:18,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 19:33:18,011 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:18,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:18,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 19:33:18,013 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:18,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:18,014 INFO L82 PathProgramCache]: Analyzing trace with hash -35486156, now seen corresponding path program 1 times [2021-01-06 19:33:18,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:18,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597903471] [2021-01-06 19:33:18,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:18,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:18,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597903471] [2021-01-06 19:33:18,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:18,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:18,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449848233] [2021-01-06 19:33:18,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:18,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:18,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:18,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:18,102 INFO L87 Difference]: Start difference. First operand 428 states and 658 transitions. Second operand 4 states. [2021-01-06 19:33:18,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:18,192 INFO L93 Difference]: Finished difference Result 1579 states and 2407 transitions. [2021-01-06 19:33:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:18,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2021-01-06 19:33:18,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:18,199 INFO L225 Difference]: With dead ends: 1579 [2021-01-06 19:33:18,200 INFO L226 Difference]: Without dead ends: 1165 [2021-01-06 19:33:18,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:18,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2021-01-06 19:33:18,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 430. [2021-01-06 19:33:18,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2021-01-06 19:33:18,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 660 transitions. [2021-01-06 19:33:18,218 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 660 transitions. Word has length 18 [2021-01-06 19:33:18,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:18,219 INFO L481 AbstractCegarLoop]: Abstraction has 430 states and 660 transitions. [2021-01-06 19:33:18,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:18,219 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 660 transitions. [2021-01-06 19:33:18,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 19:33:18,220 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:18,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:18,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 19:33:18,221 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:18,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:18,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1707916525, now seen corresponding path program 1 times [2021-01-06 19:33:18,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:18,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602875174] [2021-01-06 19:33:18,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:18,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602875174] [2021-01-06 19:33:18,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:18,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:18,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949610041] [2021-01-06 19:33:18,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:18,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:18,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:18,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:18,284 INFO L87 Difference]: Start difference. First operand 430 states and 660 transitions. Second operand 4 states. [2021-01-06 19:33:18,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:18,347 INFO L93 Difference]: Finished difference Result 673 states and 1026 transitions. [2021-01-06 19:33:18,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:18,349 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2021-01-06 19:33:18,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:18,352 INFO L225 Difference]: With dead ends: 673 [2021-01-06 19:33:18,352 INFO L226 Difference]: Without dead ends: 428 [2021-01-06 19:33:18,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:18,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-01-06 19:33:18,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2021-01-06 19:33:18,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2021-01-06 19:33:18,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 653 transitions. [2021-01-06 19:33:18,367 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 653 transitions. Word has length 19 [2021-01-06 19:33:18,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:18,367 INFO L481 AbstractCegarLoop]: Abstraction has 428 states and 653 transitions. [2021-01-06 19:33:18,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:18,367 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 653 transitions. [2021-01-06 19:33:18,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 19:33:18,372 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:18,372 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] [2021-01-06 19:33:18,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 19:33:18,373 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:18,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:18,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1967275947, now seen corresponding path program 1 times [2021-01-06 19:33:18,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:18,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141720441] [2021-01-06 19:33:18,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:18,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141720441] [2021-01-06 19:33:18,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580181173] [2021-01-06 19:33:18,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:33:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:18,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:33:18,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:33:18,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:33:18,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-01-06 19:33:18,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838107504] [2021-01-06 19:33:18,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:33:18,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:18,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:33:18,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:18,628 INFO L87 Difference]: Start difference. First operand 428 states and 653 transitions. Second operand 5 states. [2021-01-06 19:33:18,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:18,747 INFO L93 Difference]: Finished difference Result 1667 states and 2557 transitions. [2021-01-06 19:33:18,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:18,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2021-01-06 19:33:18,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:18,755 INFO L225 Difference]: With dead ends: 1667 [2021-01-06 19:33:18,755 INFO L226 Difference]: Without dead ends: 1250 [2021-01-06 19:33:18,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:18,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-01-06 19:33:18,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 574. [2021-01-06 19:33:18,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2021-01-06 19:33:18,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 903 transitions. [2021-01-06 19:33:18,786 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 903 transitions. Word has length 21 [2021-01-06 19:33:18,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:18,787 INFO L481 AbstractCegarLoop]: Abstraction has 574 states and 903 transitions. [2021-01-06 19:33:18,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:33:18,790 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 903 transitions. [2021-01-06 19:33:18,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-06 19:33:18,791 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:18,792 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:19,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-01-06 19:33:19,008 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:19,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1165168607, now seen corresponding path program 2 times [2021-01-06 19:33:19,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064399210] [2021-01-06 19:33:19,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-01-06 19:33:19,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064399210] [2021-01-06 19:33:19,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:19,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:19,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871499035] [2021-01-06 19:33:19,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:19,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:19,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:19,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:19,056 INFO L87 Difference]: Start difference. First operand 574 states and 903 transitions. Second operand 3 states. [2021-01-06 19:33:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:19,177 INFO L93 Difference]: Finished difference Result 1297 states and 2010 transitions. [2021-01-06 19:33:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:19,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-01-06 19:33:19,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:19,182 INFO L225 Difference]: With dead ends: 1297 [2021-01-06 19:33:19,182 INFO L226 Difference]: Without dead ends: 781 [2021-01-06 19:33:19,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:19,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2021-01-06 19:33:19,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 508. [2021-01-06 19:33:19,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2021-01-06 19:33:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 778 transitions. [2021-01-06 19:33:19,201 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 778 transitions. Word has length 28 [2021-01-06 19:33:19,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:19,202 INFO L481 AbstractCegarLoop]: Abstraction has 508 states and 778 transitions. [2021-01-06 19:33:19,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:19,202 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 778 transitions. [2021-01-06 19:33:19,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-06 19:33:19,202 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:19,203 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:19,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 19:33:19,203 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:19,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,204 INFO L82 PathProgramCache]: Analyzing trace with hash 777427029, now seen corresponding path program 1 times [2021-01-06 19:33:19,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736525304] [2021-01-06 19:33:19,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-01-06 19:33:19,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736525304] [2021-01-06 19:33:19,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:19,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:19,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776907159] [2021-01-06 19:33:19,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:19,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:19,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:19,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:19,241 INFO L87 Difference]: Start difference. First operand 508 states and 778 transitions. Second operand 3 states. [2021-01-06 19:33:19,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:19,302 INFO L93 Difference]: Finished difference Result 1165 states and 1769 transitions. [2021-01-06 19:33:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:19,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-01-06 19:33:19,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:19,306 INFO L225 Difference]: With dead ends: 1165 [2021-01-06 19:33:19,306 INFO L226 Difference]: Without dead ends: 688 [2021-01-06 19:33:19,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2021-01-06 19:33:19,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 457. [2021-01-06 19:33:19,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2021-01-06 19:33:19,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 684 transitions. [2021-01-06 19:33:19,323 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 684 transitions. Word has length 28 [2021-01-06 19:33:19,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:19,324 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 684 transitions. [2021-01-06 19:33:19,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:19,324 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 684 transitions. [2021-01-06 19:33:19,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-06 19:33:19,325 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:19,325 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-01-06 19:33:19,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 19:33:19,325 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:19,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,326 INFO L82 PathProgramCache]: Analyzing trace with hash 104948594, now seen corresponding path program 1 times [2021-01-06 19:33:19,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437765355] [2021-01-06 19:33:19,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-01-06 19:33:19,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437765355] [2021-01-06 19:33:19,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:19,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:19,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400648563] [2021-01-06 19:33:19,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:19,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:19,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:19,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:19,380 INFO L87 Difference]: Start difference. First operand 457 states and 684 transitions. Second operand 4 states. [2021-01-06 19:33:19,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:19,445 INFO L93 Difference]: Finished difference Result 1099 states and 1650 transitions. [2021-01-06 19:33:19,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:19,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2021-01-06 19:33:19,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:19,452 INFO L225 Difference]: With dead ends: 1099 [2021-01-06 19:33:19,452 INFO L226 Difference]: Without dead ends: 686 [2021-01-06 19:33:19,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:19,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-01-06 19:33:19,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 457. [2021-01-06 19:33:19,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2021-01-06 19:33:19,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 682 transitions. [2021-01-06 19:33:19,476 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 682 transitions. Word has length 38 [2021-01-06 19:33:19,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:19,476 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 682 transitions. [2021-01-06 19:33:19,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:19,476 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 682 transitions. [2021-01-06 19:33:19,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-06 19:33:19,477 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:19,477 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:19,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 19:33:19,478 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:19,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1338937392, now seen corresponding path program 1 times [2021-01-06 19:33:19,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146485284] [2021-01-06 19:33:19,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-01-06 19:33:19,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146485284] [2021-01-06 19:33:19,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:19,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:19,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518562641] [2021-01-06 19:33:19,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:19,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:19,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:19,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:19,580 INFO L87 Difference]: Start difference. First operand 457 states and 682 transitions. Second operand 3 states. [2021-01-06 19:33:19,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:19,628 INFO L93 Difference]: Finished difference Result 1035 states and 1549 transitions. [2021-01-06 19:33:19,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:19,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2021-01-06 19:33:19,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:19,633 INFO L225 Difference]: With dead ends: 1035 [2021-01-06 19:33:19,633 INFO L226 Difference]: Without dead ends: 641 [2021-01-06 19:33:19,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:19,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2021-01-06 19:33:19,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 413. [2021-01-06 19:33:19,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2021-01-06 19:33:19,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 608 transitions. [2021-01-06 19:33:19,648 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 608 transitions. Word has length 50 [2021-01-06 19:33:19,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:19,648 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 608 transitions. [2021-01-06 19:33:19,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:19,649 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 608 transitions. [2021-01-06 19:33:19,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-06 19:33:19,649 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:19,649 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:19,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 19:33:19,650 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:19,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,651 INFO L82 PathProgramCache]: Analyzing trace with hash 970476669, now seen corresponding path program 1 times [2021-01-06 19:33:19,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617752044] [2021-01-06 19:33:19,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:19,692 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-01-06 19:33:19,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617752044] [2021-01-06 19:33:19,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:19,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:19,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729417637] [2021-01-06 19:33:19,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:19,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:19,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:19,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:19,695 INFO L87 Difference]: Start difference. First operand 413 states and 608 transitions. Second operand 3 states. [2021-01-06 19:33:19,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:19,765 INFO L93 Difference]: Finished difference Result 869 states and 1278 transitions. [2021-01-06 19:33:19,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:19,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2021-01-06 19:33:19,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:19,769 INFO L225 Difference]: With dead ends: 869 [2021-01-06 19:33:19,769 INFO L226 Difference]: Without dead ends: 511 [2021-01-06 19:33:19,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:19,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2021-01-06 19:33:19,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 369. [2021-01-06 19:33:19,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2021-01-06 19:33:19,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 520 transitions. [2021-01-06 19:33:19,782 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 520 transitions. Word has length 51 [2021-01-06 19:33:19,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:19,783 INFO L481 AbstractCegarLoop]: Abstraction has 369 states and 520 transitions. [2021-01-06 19:33:19,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:19,783 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 520 transitions. [2021-01-06 19:33:19,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-06 19:33:19,784 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:19,784 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:19,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 19:33:19,784 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:19,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,785 INFO L82 PathProgramCache]: Analyzing trace with hash 216341264, now seen corresponding path program 1 times [2021-01-06 19:33:19,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692849081] [2021-01-06 19:33:19,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:19,839 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-01-06 19:33:19,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692849081] [2021-01-06 19:33:19,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:19,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:19,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472182004] [2021-01-06 19:33:19,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:19,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:19,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:19,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:19,842 INFO L87 Difference]: Start difference. First operand 369 states and 520 transitions. Second operand 4 states. [2021-01-06 19:33:19,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:19,893 INFO L93 Difference]: Finished difference Result 877 states and 1257 transitions. [2021-01-06 19:33:19,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:19,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2021-01-06 19:33:19,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:19,898 INFO L225 Difference]: With dead ends: 877 [2021-01-06 19:33:19,898 INFO L226 Difference]: Without dead ends: 580 [2021-01-06 19:33:19,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:19,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2021-01-06 19:33:19,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 369. [2021-01-06 19:33:19,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2021-01-06 19:33:19,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 518 transitions. [2021-01-06 19:33:19,912 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 518 transitions. Word has length 62 [2021-01-06 19:33:19,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:19,912 INFO L481 AbstractCegarLoop]: Abstraction has 369 states and 518 transitions. [2021-01-06 19:33:19,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:19,913 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 518 transitions. [2021-01-06 19:33:19,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-01-06 19:33:19,913 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:19,914 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:19,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 19:33:19,914 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:19,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,915 INFO L82 PathProgramCache]: Analyzing trace with hash 542276843, now seen corresponding path program 1 times [2021-01-06 19:33:19,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402422887] [2021-01-06 19:33:19,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:19,982 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-01-06 19:33:19,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402422887] [2021-01-06 19:33:19,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311552345] [2021-01-06 19:33:19,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:33:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:20,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-06 19:33:20,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:20,263 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-01-06 19:33:20,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:33:20,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-01-06 19:33:20,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28480760] [2021-01-06 19:33:20,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:33:20,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:20,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:33:20,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:33:20,267 INFO L87 Difference]: Start difference. First operand 369 states and 518 transitions. Second operand 6 states. [2021-01-06 19:33:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:20,372 INFO L93 Difference]: Finished difference Result 1429 states and 2036 transitions. [2021-01-06 19:33:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:20,373 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2021-01-06 19:33:20,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:20,378 INFO L225 Difference]: With dead ends: 1429 [2021-01-06 19:33:20,379 INFO L226 Difference]: Without dead ends: 1079 [2021-01-06 19:33:20,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:33:20,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2021-01-06 19:33:20,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 442. [2021-01-06 19:33:20,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2021-01-06 19:33:20,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 615 transitions. [2021-01-06 19:33:20,402 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 615 transitions. Word has length 76 [2021-01-06 19:33:20,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:20,403 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 615 transitions. [2021-01-06 19:33:20,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:33:20,403 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 615 transitions. [2021-01-06 19:33:20,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-01-06 19:33:20,404 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:20,404 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:20,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-06 19:33:20,619 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:20,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:20,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1726325344, now seen corresponding path program 2 times [2021-01-06 19:33:20,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:20,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225798638] [2021-01-06 19:33:20,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:20,696 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-01-06 19:33:20,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225798638] [2021-01-06 19:33:20,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:20,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:20,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043605506] [2021-01-06 19:33:20,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:20,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:20,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:20,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:20,699 INFO L87 Difference]: Start difference. First operand 442 states and 615 transitions. Second operand 3 states. [2021-01-06 19:33:20,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:20,749 INFO L93 Difference]: Finished difference Result 866 states and 1248 transitions. [2021-01-06 19:33:20,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:20,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2021-01-06 19:33:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:20,752 INFO L225 Difference]: With dead ends: 866 [2021-01-06 19:33:20,752 INFO L226 Difference]: Without dead ends: 566 [2021-01-06 19:33:20,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:20,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2021-01-06 19:33:20,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 398. [2021-01-06 19:33:20,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2021-01-06 19:33:20,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 557 transitions. [2021-01-06 19:33:20,769 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 557 transitions. Word has length 103 [2021-01-06 19:33:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:20,769 INFO L481 AbstractCegarLoop]: Abstraction has 398 states and 557 transitions. [2021-01-06 19:33:20,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:20,769 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 557 transitions. [2021-01-06 19:33:20,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-01-06 19:33:20,770 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:20,771 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:20,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 19:33:20,771 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:20,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:20,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1846233333, now seen corresponding path program 1 times [2021-01-06 19:33:20,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:20,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498583058] [2021-01-06 19:33:20,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-01-06 19:33:20,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498583058] [2021-01-06 19:33:20,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:20,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:20,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809476257] [2021-01-06 19:33:20,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:20,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:20,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:20,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:20,835 INFO L87 Difference]: Start difference. First operand 398 states and 557 transitions. Second operand 3 states. [2021-01-06 19:33:20,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:20,866 INFO L93 Difference]: Finished difference Result 574 states and 819 transitions. [2021-01-06 19:33:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:20,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2021-01-06 19:33:20,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:20,869 INFO L225 Difference]: With dead ends: 574 [2021-01-06 19:33:20,869 INFO L226 Difference]: Without dead ends: 314 [2021-01-06 19:33:20,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:20,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-01-06 19:33:20,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2021-01-06 19:33:20,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2021-01-06 19:33:20,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 434 transitions. [2021-01-06 19:33:20,881 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 434 transitions. Word has length 112 [2021-01-06 19:33:20,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:20,881 INFO L481 AbstractCegarLoop]: Abstraction has 314 states and 434 transitions. [2021-01-06 19:33:20,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:20,882 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 434 transitions. [2021-01-06 19:33:20,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-06 19:33:20,883 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:20,883 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:20,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 19:33:20,883 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:20,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:20,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1519105475, now seen corresponding path program 1 times [2021-01-06 19:33:20,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:20,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388097523] [2021-01-06 19:33:20,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:20,949 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-01-06 19:33:20,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388097523] [2021-01-06 19:33:20,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:20,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:20,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336599783] [2021-01-06 19:33:20,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:20,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:20,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:20,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:20,951 INFO L87 Difference]: Start difference. First operand 314 states and 434 transitions. Second operand 4 states. [2021-01-06 19:33:20,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:20,996 INFO L93 Difference]: Finished difference Result 489 states and 695 transitions. [2021-01-06 19:33:20,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:20,996 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2021-01-06 19:33:20,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:20,998 INFO L225 Difference]: With dead ends: 489 [2021-01-06 19:33:20,998 INFO L226 Difference]: Without dead ends: 314 [2021-01-06 19:33:20,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:21,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-01-06 19:33:21,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2021-01-06 19:33:21,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2021-01-06 19:33:21,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 431 transitions. [2021-01-06 19:33:21,010 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 431 transitions. Word has length 115 [2021-01-06 19:33:21,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,011 INFO L481 AbstractCegarLoop]: Abstraction has 314 states and 431 transitions. [2021-01-06 19:33:21,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:21,011 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 431 transitions. [2021-01-06 19:33:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-01-06 19:33:21,012 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,012 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:21,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 19:33:21,013 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:21,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1299139450, now seen corresponding path program 1 times [2021-01-06 19:33:21,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418285289] [2021-01-06 19:33:21,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:21,075 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-01-06 19:33:21,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418285289] [2021-01-06 19:33:21,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:21,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:21,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421663663] [2021-01-06 19:33:21,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:21,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:21,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:21,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,078 INFO L87 Difference]: Start difference. First operand 314 states and 431 transitions. Second operand 3 states. [2021-01-06 19:33:21,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:21,110 INFO L93 Difference]: Finished difference Result 620 states and 893 transitions. [2021-01-06 19:33:21,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:21,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2021-01-06 19:33:21,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:21,113 INFO L225 Difference]: With dead ends: 620 [2021-01-06 19:33:21,113 INFO L226 Difference]: Without dead ends: 450 [2021-01-06 19:33:21,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2021-01-06 19:33:21,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 309. [2021-01-06 19:33:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2021-01-06 19:33:21,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 423 transitions. [2021-01-06 19:33:21,127 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 423 transitions. Word has length 126 [2021-01-06 19:33:21,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,128 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 423 transitions. [2021-01-06 19:33:21,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:21,128 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 423 transitions. [2021-01-06 19:33:21,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-01-06 19:33:21,129 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,129 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:21,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 19:33:21,130 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:21,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1867178510, now seen corresponding path program 1 times [2021-01-06 19:33:21,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158019249] [2021-01-06 19:33:21,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:21,198 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-01-06 19:33:21,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158019249] [2021-01-06 19:33:21,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:21,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:21,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927599331] [2021-01-06 19:33:21,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:21,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:21,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:21,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,201 INFO L87 Difference]: Start difference. First operand 309 states and 423 transitions. Second operand 3 states. [2021-01-06 19:33:21,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:21,229 INFO L93 Difference]: Finished difference Result 600 states and 863 transitions. [2021-01-06 19:33:21,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:21,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2021-01-06 19:33:21,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:21,232 INFO L225 Difference]: With dead ends: 600 [2021-01-06 19:33:21,232 INFO L226 Difference]: Without dead ends: 435 [2021-01-06 19:33:21,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-01-06 19:33:21,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 305. [2021-01-06 19:33:21,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2021-01-06 19:33:21,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 416 transitions. [2021-01-06 19:33:21,247 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 416 transitions. Word has length 131 [2021-01-06 19:33:21,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,247 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 416 transitions. [2021-01-06 19:33:21,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:21,248 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 416 transitions. [2021-01-06 19:33:21,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-01-06 19:33:21,249 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,249 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:21,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-06 19:33:21,250 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:21,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,250 INFO L82 PathProgramCache]: Analyzing trace with hash -818573298, now seen corresponding path program 1 times [2021-01-06 19:33:21,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146095901] [2021-01-06 19:33:21,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-01-06 19:33:21,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146095901] [2021-01-06 19:33:21,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:21,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:21,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189324846] [2021-01-06 19:33:21,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:21,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:21,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:21,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,320 INFO L87 Difference]: Start difference. First operand 305 states and 416 transitions. Second operand 3 states. [2021-01-06 19:33:21,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:21,343 INFO L93 Difference]: Finished difference Result 464 states and 655 transitions. [2021-01-06 19:33:21,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:21,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2021-01-06 19:33:21,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:21,345 INFO L225 Difference]: With dead ends: 464 [2021-01-06 19:33:21,345 INFO L226 Difference]: Without dead ends: 303 [2021-01-06 19:33:21,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-01-06 19:33:21,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 302. [2021-01-06 19:33:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2021-01-06 19:33:21,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 410 transitions. [2021-01-06 19:33:21,360 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 410 transitions. Word has length 137 [2021-01-06 19:33:21,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,360 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 410 transitions. [2021-01-06 19:33:21,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:21,360 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 410 transitions. [2021-01-06 19:33:21,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-01-06 19:33:21,362 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,362 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:21,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 19:33:21,363 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:21,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1051221199, now seen corresponding path program 1 times [2021-01-06 19:33:21,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713263754] [2021-01-06 19:33:21,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:21,451 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-01-06 19:33:21,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713263754] [2021-01-06 19:33:21,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:21,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:21,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202440008] [2021-01-06 19:33:21,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:21,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:21,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:21,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,453 INFO L87 Difference]: Start difference. First operand 302 states and 410 transitions. Second operand 3 states. [2021-01-06 19:33:21,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:21,468 INFO L93 Difference]: Finished difference Result 509 states and 717 transitions. [2021-01-06 19:33:21,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:21,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2021-01-06 19:33:21,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:21,471 INFO L225 Difference]: With dead ends: 509 [2021-01-06 19:33:21,471 INFO L226 Difference]: Without dead ends: 351 [2021-01-06 19:33:21,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-01-06 19:33:21,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 299. [2021-01-06 19:33:21,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-01-06 19:33:21,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 406 transitions. [2021-01-06 19:33:21,486 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 406 transitions. Word has length 144 [2021-01-06 19:33:21,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,486 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 406 transitions. [2021-01-06 19:33:21,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:21,486 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 406 transitions. [2021-01-06 19:33:21,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-01-06 19:33:21,488 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,488 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:21,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-06 19:33:21,489 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:21,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,489 INFO L82 PathProgramCache]: Analyzing trace with hash 2123182376, now seen corresponding path program 1 times [2021-01-06 19:33:21,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369762399] [2021-01-06 19:33:21,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-01-06 19:33:21,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369762399] [2021-01-06 19:33:21,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:21,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:21,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701528338] [2021-01-06 19:33:21,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:21,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:21,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:21,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,590 INFO L87 Difference]: Start difference. First operand 299 states and 406 transitions. Second operand 3 states. [2021-01-06 19:33:21,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:21,622 INFO L93 Difference]: Finished difference Result 484 states and 674 transitions. [2021-01-06 19:33:21,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:21,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-01-06 19:33:21,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:21,624 INFO L225 Difference]: With dead ends: 484 [2021-01-06 19:33:21,625 INFO L226 Difference]: Without dead ends: 299 [2021-01-06 19:33:21,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-01-06 19:33:21,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2021-01-06 19:33:21,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-01-06 19:33:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 403 transitions. [2021-01-06 19:33:21,639 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 403 transitions. Word has length 147 [2021-01-06 19:33:21,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,640 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 403 transitions. [2021-01-06 19:33:21,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:21,640 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 403 transitions. [2021-01-06 19:33:21,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-01-06 19:33:21,642 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,642 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:21,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-06 19:33:21,643 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:21,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1291870858, now seen corresponding path program 1 times [2021-01-06 19:33:21,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704473094] [2021-01-06 19:33:21,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:21,772 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:21,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704473094] [2021-01-06 19:33:21,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:21,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:21,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646067374] [2021-01-06 19:33:21,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:21,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:21,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:21,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:21,774 INFO L87 Difference]: Start difference. First operand 299 states and 403 transitions. Second operand 4 states. [2021-01-06 19:33:21,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:21,877 INFO L93 Difference]: Finished difference Result 636 states and 897 transitions. [2021-01-06 19:33:21,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:21,877 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-01-06 19:33:21,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:21,880 INFO L225 Difference]: With dead ends: 636 [2021-01-06 19:33:21,880 INFO L226 Difference]: Without dead ends: 481 [2021-01-06 19:33:21,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:21,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-01-06 19:33:21,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 385. [2021-01-06 19:33:21,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2021-01-06 19:33:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 525 transitions. [2021-01-06 19:33:21,914 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 525 transitions. Word has length 159 [2021-01-06 19:33:21,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,914 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 525 transitions. [2021-01-06 19:33:21,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:21,914 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 525 transitions. [2021-01-06 19:33:21,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-01-06 19:33:21,916 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,917 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:21,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-06 19:33:21,917 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:21,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1937549472, now seen corresponding path program 1 times [2021-01-06 19:33:21,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361578217] [2021-01-06 19:33:21,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:22,025 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:22,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361578217] [2021-01-06 19:33:22,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:22,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:22,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72812062] [2021-01-06 19:33:22,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:22,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:22,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:22,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:22,027 INFO L87 Difference]: Start difference. First operand 385 states and 525 transitions. Second operand 3 states. [2021-01-06 19:33:22,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:22,073 INFO L93 Difference]: Finished difference Result 799 states and 1134 transitions. [2021-01-06 19:33:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:22,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2021-01-06 19:33:22,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:22,077 INFO L225 Difference]: With dead ends: 799 [2021-01-06 19:33:22,077 INFO L226 Difference]: Without dead ends: 599 [2021-01-06 19:33:22,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:22,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-01-06 19:33:22,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 459. [2021-01-06 19:33:22,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2021-01-06 19:33:22,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 628 transitions. [2021-01-06 19:33:22,105 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 628 transitions. Word has length 177 [2021-01-06 19:33:22,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:22,106 INFO L481 AbstractCegarLoop]: Abstraction has 459 states and 628 transitions. [2021-01-06 19:33:22,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:22,106 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 628 transitions. [2021-01-06 19:33:22,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-01-06 19:33:22,108 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:22,108 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:22,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-06 19:33:22,109 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:22,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:22,109 INFO L82 PathProgramCache]: Analyzing trace with hash -251982915, now seen corresponding path program 1 times [2021-01-06 19:33:22,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:22,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079259081] [2021-01-06 19:33:22,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:22,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079259081] [2021-01-06 19:33:22,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:22,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:22,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107806540] [2021-01-06 19:33:22,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:22,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:22,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:22,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:22,250 INFO L87 Difference]: Start difference. First operand 459 states and 628 transitions. Second operand 3 states. [2021-01-06 19:33:22,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:22,320 INFO L93 Difference]: Finished difference Result 955 states and 1354 transitions. [2021-01-06 19:33:22,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:22,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2021-01-06 19:33:22,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:22,327 INFO L225 Difference]: With dead ends: 955 [2021-01-06 19:33:22,327 INFO L226 Difference]: Without dead ends: 710 [2021-01-06 19:33:22,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:22,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2021-01-06 19:33:22,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 557. [2021-01-06 19:33:22,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2021-01-06 19:33:22,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 766 transitions. [2021-01-06 19:33:22,389 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 766 transitions. Word has length 178 [2021-01-06 19:33:22,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:22,390 INFO L481 AbstractCegarLoop]: Abstraction has 557 states and 766 transitions. [2021-01-06 19:33:22,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:22,390 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 766 transitions. [2021-01-06 19:33:22,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-01-06 19:33:22,393 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:22,394 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:22,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-06 19:33:22,394 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:22,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1139374053, now seen corresponding path program 1 times [2021-01-06 19:33:22,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:22,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288444197] [2021-01-06 19:33:22,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:22,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288444197] [2021-01-06 19:33:22,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:22,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:22,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117630052] [2021-01-06 19:33:22,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:22,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:22,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:22,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:22,537 INFO L87 Difference]: Start difference. First operand 557 states and 766 transitions. Second operand 3 states. [2021-01-06 19:33:22,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:22,619 INFO L93 Difference]: Finished difference Result 1135 states and 1616 transitions. [2021-01-06 19:33:22,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:22,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2021-01-06 19:33:22,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:22,625 INFO L225 Difference]: With dead ends: 1135 [2021-01-06 19:33:22,625 INFO L226 Difference]: Without dead ends: 824 [2021-01-06 19:33:22,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:22,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2021-01-06 19:33:22,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 643. [2021-01-06 19:33:22,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2021-01-06 19:33:22,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 894 transitions. [2021-01-06 19:33:22,678 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 894 transitions. Word has length 179 [2021-01-06 19:33:22,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:22,679 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 894 transitions. [2021-01-06 19:33:22,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:22,679 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 894 transitions. [2021-01-06 19:33:22,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-01-06 19:33:22,683 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:22,684 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:22,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-06 19:33:22,685 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:22,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:22,685 INFO L82 PathProgramCache]: Analyzing trace with hash -920519335, now seen corresponding path program 1 times [2021-01-06 19:33:22,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:22,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049790800] [2021-01-06 19:33:22,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-01-06 19:33:22,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049790800] [2021-01-06 19:33:22,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913313859] [2021-01-06 19:33:22,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:33:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:23,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:33:23,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:23,329 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:23,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:33:23,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-01-06 19:33:23,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739010353] [2021-01-06 19:33:23,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:23,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:23,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:23,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:23,331 INFO L87 Difference]: Start difference. First operand 643 states and 894 transitions. Second operand 3 states. [2021-01-06 19:33:23,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:23,433 INFO L93 Difference]: Finished difference Result 1287 states and 1778 transitions. [2021-01-06 19:33:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:23,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2021-01-06 19:33:23,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:23,438 INFO L225 Difference]: With dead ends: 1287 [2021-01-06 19:33:23,439 INFO L226 Difference]: Without dead ends: 898 [2021-01-06 19:33:23,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:23,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-01-06 19:33:23,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 643. [2021-01-06 19:33:23,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2021-01-06 19:33:23,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 885 transitions. [2021-01-06 19:33:23,482 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 885 transitions. Word has length 179 [2021-01-06 19:33:23,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:23,483 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 885 transitions. [2021-01-06 19:33:23,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:23,483 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 885 transitions. [2021-01-06 19:33:23,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-01-06 19:33:23,485 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:23,486 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:23,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-01-06 19:33:23,700 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:23,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:23,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1340858399, now seen corresponding path program 1 times [2021-01-06 19:33:23,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:23,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228578388] [2021-01-06 19:33:23,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:23,811 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-01-06 19:33:23,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228578388] [2021-01-06 19:33:23,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243314103] [2021-01-06 19:33:23,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:33:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:24,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:33:24,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:24,304 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:24,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:33:24,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-01-06 19:33:24,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950225909] [2021-01-06 19:33:24,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:24,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:24,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:24,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:24,307 INFO L87 Difference]: Start difference. First operand 643 states and 885 transitions. Second operand 3 states. [2021-01-06 19:33:24,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:24,470 INFO L93 Difference]: Finished difference Result 1519 states and 2130 transitions. [2021-01-06 19:33:24,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:24,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2021-01-06 19:33:24,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:24,476 INFO L225 Difference]: With dead ends: 1519 [2021-01-06 19:33:24,477 INFO L226 Difference]: Without dead ends: 1130 [2021-01-06 19:33:24,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:24,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2021-01-06 19:33:24,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 643. [2021-01-06 19:33:24,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2021-01-06 19:33:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 884 transitions. [2021-01-06 19:33:24,524 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 884 transitions. Word has length 180 [2021-01-06 19:33:24,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:24,524 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 884 transitions. [2021-01-06 19:33:24,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:24,525 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 884 transitions. [2021-01-06 19:33:24,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-01-06 19:33:24,527 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:24,527 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:24,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:33:24,742 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:24,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:24,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1177602269, now seen corresponding path program 1 times [2021-01-06 19:33:24,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:24,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474336520] [2021-01-06 19:33:24,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-01-06 19:33:24,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474336520] [2021-01-06 19:33:24,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676668683] [2021-01-06 19:33:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:33:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:25,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-06 19:33:25,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:25,376 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 19:33:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:25,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:33:25,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-01-06 19:33:25,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386627590] [2021-01-06 19:33:25,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:25,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:25,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:25,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:33:25,415 INFO L87 Difference]: Start difference. First operand 643 states and 884 transitions. Second operand 4 states. [2021-01-06 19:33:25,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:25,523 INFO L93 Difference]: Finished difference Result 1058 states and 1477 transitions. [2021-01-06 19:33:25,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:25,524 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2021-01-06 19:33:25,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:25,530 INFO L225 Difference]: With dead ends: 1058 [2021-01-06 19:33:25,530 INFO L226 Difference]: Without dead ends: 1056 [2021-01-06 19:33:25,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:33:25,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2021-01-06 19:33:25,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 645. [2021-01-06 19:33:25,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2021-01-06 19:33:25,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 886 transitions. [2021-01-06 19:33:25,582 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 886 transitions. Word has length 181 [2021-01-06 19:33:25,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:25,583 INFO L481 AbstractCegarLoop]: Abstraction has 645 states and 886 transitions. [2021-01-06 19:33:25,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 886 transitions. [2021-01-06 19:33:25,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-01-06 19:33:25,585 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:25,585 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:25,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-01-06 19:33:25,799 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:25,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:25,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1249235817, now seen corresponding path program 1 times [2021-01-06 19:33:25,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:25,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142413185] [2021-01-06 19:33:25,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-01-06 19:33:26,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142413185] [2021-01-06 19:33:26,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083375563] [2021-01-06 19:33:26,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:33:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:26,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 19:33:26,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:26,452 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-01-06 19:33:26,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:33:26,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-01-06 19:33:26,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595059414] [2021-01-06 19:33:26,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 19:33:26,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:26,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 19:33:26,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:33:26,455 INFO L87 Difference]: Start difference. First operand 645 states and 886 transitions. Second operand 11 states. [2021-01-06 19:33:27,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:27,293 INFO L93 Difference]: Finished difference Result 3897 states and 5558 transitions. [2021-01-06 19:33:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-06 19:33:27,294 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 184 [2021-01-06 19:33:27,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:27,311 INFO L225 Difference]: With dead ends: 3897 [2021-01-06 19:33:27,311 INFO L226 Difference]: Without dead ends: 3506 [2021-01-06 19:33:27,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2021-01-06 19:33:27,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2021-01-06 19:33:27,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 871. [2021-01-06 19:33:27,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2021-01-06 19:33:27,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1176 transitions. [2021-01-06 19:33:27,395 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1176 transitions. Word has length 184 [2021-01-06 19:33:27,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:27,396 INFO L481 AbstractCegarLoop]: Abstraction has 871 states and 1176 transitions. [2021-01-06 19:33:27,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 19:33:27,396 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1176 transitions. [2021-01-06 19:33:27,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-01-06 19:33:27,399 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:27,399 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:27,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-01-06 19:33:27,614 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:27,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:27,616 INFO L82 PathProgramCache]: Analyzing trace with hash -30627861, now seen corresponding path program 1 times [2021-01-06 19:33:27,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:27,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454620712] [2021-01-06 19:33:27,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:27,716 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:27,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454620712] [2021-01-06 19:33:27,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:27,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:27,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131635810] [2021-01-06 19:33:27,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:27,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:27,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:27,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:27,718 INFO L87 Difference]: Start difference. First operand 871 states and 1176 transitions. Second operand 3 states. [2021-01-06 19:33:27,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:27,871 INFO L93 Difference]: Finished difference Result 1949 states and 2675 transitions. [2021-01-06 19:33:27,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:27,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2021-01-06 19:33:27,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:27,879 INFO L225 Difference]: With dead ends: 1949 [2021-01-06 19:33:27,879 INFO L226 Difference]: Without dead ends: 1558 [2021-01-06 19:33:27,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:27,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2021-01-06 19:33:27,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 871. [2021-01-06 19:33:27,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2021-01-06 19:33:27,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1174 transitions. [2021-01-06 19:33:27,944 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1174 transitions. Word has length 184 [2021-01-06 19:33:27,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:27,945 INFO L481 AbstractCegarLoop]: Abstraction has 871 states and 1174 transitions. [2021-01-06 19:33:27,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:27,945 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1174 transitions. [2021-01-06 19:33:27,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-01-06 19:33:27,948 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:27,948 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:27,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-01-06 19:33:27,949 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:27,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:27,949 INFO L82 PathProgramCache]: Analyzing trace with hash -489339443, now seen corresponding path program 1 times [2021-01-06 19:33:27,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:27,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540212129] [2021-01-06 19:33:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:28,014 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-01-06 19:33:28,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540212129] [2021-01-06 19:33:28,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:28,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:28,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562359496] [2021-01-06 19:33:28,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:28,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:28,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:28,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:28,017 INFO L87 Difference]: Start difference. First operand 871 states and 1174 transitions. Second operand 3 states. [2021-01-06 19:33:28,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:28,093 INFO L93 Difference]: Finished difference Result 1463 states and 1989 transitions. [2021-01-06 19:33:28,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:28,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2021-01-06 19:33:28,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:28,098 INFO L225 Difference]: With dead ends: 1463 [2021-01-06 19:33:28,098 INFO L226 Difference]: Without dead ends: 713 [2021-01-06 19:33:28,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:28,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-01-06 19:33:28,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 712. [2021-01-06 19:33:28,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2021-01-06 19:33:28,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 941 transitions. [2021-01-06 19:33:28,149 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 941 transitions. Word has length 187 [2021-01-06 19:33:28,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:28,150 INFO L481 AbstractCegarLoop]: Abstraction has 712 states and 941 transitions. [2021-01-06 19:33:28,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:28,150 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 941 transitions. [2021-01-06 19:33:28,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-01-06 19:33:28,152 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:28,152 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:28,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-01-06 19:33:28,153 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:28,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:28,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1612175983, now seen corresponding path program 1 times [2021-01-06 19:33:28,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:28,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456226185] [2021-01-06 19:33:28,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:28,330 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:28,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456226185] [2021-01-06 19:33:28,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:28,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 19:33:28,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269764957] [2021-01-06 19:33:28,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 19:33:28,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:28,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 19:33:28,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:33:28,332 INFO L87 Difference]: Start difference. First operand 712 states and 941 transitions. Second operand 7 states. [2021-01-06 19:33:28,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:28,686 INFO L93 Difference]: Finished difference Result 1533 states and 2054 transitions. [2021-01-06 19:33:28,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:33:28,686 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2021-01-06 19:33:28,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:28,692 INFO L225 Difference]: With dead ends: 1533 [2021-01-06 19:33:28,693 INFO L226 Difference]: Without dead ends: 1153 [2021-01-06 19:33:28,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:33:28,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2021-01-06 19:33:28,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 831. [2021-01-06 19:33:28,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2021-01-06 19:33:28,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1091 transitions. [2021-01-06 19:33:28,764 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1091 transitions. Word has length 192 [2021-01-06 19:33:28,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:28,764 INFO L481 AbstractCegarLoop]: Abstraction has 831 states and 1091 transitions. [2021-01-06 19:33:28,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 19:33:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1091 transitions. [2021-01-06 19:33:28,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-01-06 19:33:28,767 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:28,767 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:28,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-01-06 19:33:28,768 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:28,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:28,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1609314537, now seen corresponding path program 1 times [2021-01-06 19:33:28,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:28,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289567124] [2021-01-06 19:33:28,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:28,902 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:28,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289567124] [2021-01-06 19:33:28,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:28,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 19:33:28,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024898400] [2021-01-06 19:33:28,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:33:28,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:28,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:33:28,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:33:28,906 INFO L87 Difference]: Start difference. First operand 831 states and 1091 transitions. Second operand 6 states. [2021-01-06 19:33:29,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:29,134 INFO L93 Difference]: Finished difference Result 2722 states and 3703 transitions. [2021-01-06 19:33:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:33:29,134 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2021-01-06 19:33:29,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:29,141 INFO L225 Difference]: With dead ends: 2722 [2021-01-06 19:33:29,141 INFO L226 Difference]: Without dead ends: 2217 [2021-01-06 19:33:29,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:33:29,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2021-01-06 19:33:29,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 908. [2021-01-06 19:33:29,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2021-01-06 19:33:29,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1189 transitions. [2021-01-06 19:33:29,229 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1189 transitions. Word has length 198 [2021-01-06 19:33:29,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:29,229 INFO L481 AbstractCegarLoop]: Abstraction has 908 states and 1189 transitions. [2021-01-06 19:33:29,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:33:29,229 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1189 transitions. [2021-01-06 19:33:29,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-01-06 19:33:29,232 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:29,232 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:29,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-01-06 19:33:29,233 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:29,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:29,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1927329879, now seen corresponding path program 1 times [2021-01-06 19:33:29,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:29,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287081503] [2021-01-06 19:33:29,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:29,342 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:29,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287081503] [2021-01-06 19:33:29,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:29,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:29,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585477927] [2021-01-06 19:33:29,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:29,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:29,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:29,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:29,344 INFO L87 Difference]: Start difference. First operand 908 states and 1189 transitions. Second operand 4 states. [2021-01-06 19:33:29,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:29,435 INFO L93 Difference]: Finished difference Result 1533 states and 2031 transitions. [2021-01-06 19:33:29,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:29,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2021-01-06 19:33:29,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:29,439 INFO L225 Difference]: With dead ends: 1533 [2021-01-06 19:33:29,439 INFO L226 Difference]: Without dead ends: 878 [2021-01-06 19:33:29,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:29,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2021-01-06 19:33:29,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2021-01-06 19:33:29,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2021-01-06 19:33:29,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1137 transitions. [2021-01-06 19:33:29,538 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1137 transitions. Word has length 198 [2021-01-06 19:33:29,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:29,538 INFO L481 AbstractCegarLoop]: Abstraction has 878 states and 1137 transitions. [2021-01-06 19:33:29,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:29,538 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1137 transitions. [2021-01-06 19:33:29,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-01-06 19:33:29,541 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:29,542 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:29,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-01-06 19:33:29,542 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:29,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:29,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1397307461, now seen corresponding path program 1 times [2021-01-06 19:33:29,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:29,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232438294] [2021-01-06 19:33:29,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:29,883 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:29,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232438294] [2021-01-06 19:33:29,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:29,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-06 19:33:29,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188682952] [2021-01-06 19:33:29,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 19:33:29,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:29,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 19:33:29,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-01-06 19:33:29,886 INFO L87 Difference]: Start difference. First operand 878 states and 1137 transitions. Second operand 10 states. [2021-01-06 19:33:30,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:30,855 INFO L93 Difference]: Finished difference Result 2515 states and 3295 transitions. [2021-01-06 19:33:30,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 19:33:30,855 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2021-01-06 19:33:30,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:30,860 INFO L225 Difference]: With dead ends: 2515 [2021-01-06 19:33:30,860 INFO L226 Difference]: Without dead ends: 1956 [2021-01-06 19:33:30,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2021-01-06 19:33:30,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2021-01-06 19:33:30,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 873. [2021-01-06 19:33:30,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2021-01-06 19:33:30,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1129 transitions. [2021-01-06 19:33:30,946 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1129 transitions. Word has length 199 [2021-01-06 19:33:30,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:30,947 INFO L481 AbstractCegarLoop]: Abstraction has 873 states and 1129 transitions. [2021-01-06 19:33:30,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 19:33:30,947 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1129 transitions. [2021-01-06 19:33:30,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-01-06 19:33:30,948 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:30,949 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:30,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-01-06 19:33:30,949 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:30,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:30,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1175526903, now seen corresponding path program 1 times [2021-01-06 19:33:30,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:30,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857010944] [2021-01-06 19:33:30,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:31,203 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:31,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857010944] [2021-01-06 19:33:31,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:31,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-06 19:33:31,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177355669] [2021-01-06 19:33:31,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 19:33:31,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:31,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 19:33:31,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-01-06 19:33:31,205 INFO L87 Difference]: Start difference. First operand 873 states and 1129 transitions. Second operand 10 states. [2021-01-06 19:33:32,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:32,020 INFO L93 Difference]: Finished difference Result 2499 states and 3274 transitions. [2021-01-06 19:33:32,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 19:33:32,020 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2021-01-06 19:33:32,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:32,025 INFO L225 Difference]: With dead ends: 2499 [2021-01-06 19:33:32,025 INFO L226 Difference]: Without dead ends: 1940 [2021-01-06 19:33:32,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2021-01-06 19:33:32,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2021-01-06 19:33:32,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 861. [2021-01-06 19:33:32,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2021-01-06 19:33:32,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1114 transitions. [2021-01-06 19:33:32,107 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1114 transitions. Word has length 199 [2021-01-06 19:33:32,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:32,107 INFO L481 AbstractCegarLoop]: Abstraction has 861 states and 1114 transitions. [2021-01-06 19:33:32,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 19:33:32,107 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1114 transitions. [2021-01-06 19:33:32,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-01-06 19:33:32,109 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:32,109 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:32,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-01-06 19:33:32,110 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:32,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:32,110 INFO L82 PathProgramCache]: Analyzing trace with hash 412852015, now seen corresponding path program 1 times [2021-01-06 19:33:32,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:32,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984083167] [2021-01-06 19:33:32,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:32,220 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-01-06 19:33:32,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984083167] [2021-01-06 19:33:32,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:32,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:32,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722381666] [2021-01-06 19:33:32,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:32,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:32,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:32,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:32,222 INFO L87 Difference]: Start difference. First operand 861 states and 1114 transitions. Second operand 4 states. [2021-01-06 19:33:32,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:32,456 INFO L93 Difference]: Finished difference Result 1649 states and 2159 transitions. [2021-01-06 19:33:32,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:32,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 208 [2021-01-06 19:33:32,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:32,459 INFO L225 Difference]: With dead ends: 1649 [2021-01-06 19:33:32,460 INFO L226 Difference]: Without dead ends: 1096 [2021-01-06 19:33:32,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:32,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2021-01-06 19:33:32,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 835. [2021-01-06 19:33:32,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 835 states. [2021-01-06 19:33:32,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1062 transitions. [2021-01-06 19:33:32,534 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1062 transitions. Word has length 208 [2021-01-06 19:33:32,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:32,535 INFO L481 AbstractCegarLoop]: Abstraction has 835 states and 1062 transitions. [2021-01-06 19:33:32,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:32,535 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1062 transitions. [2021-01-06 19:33:32,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-01-06 19:33:32,552 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:32,552 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:33:32,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-01-06 19:33:32,553 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:33:32,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:32,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1044588684, now seen corresponding path program 1 times [2021-01-06 19:33:32,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:32,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82872935] [2021-01-06 19:33:32,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:32,854 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 41 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:32,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82872935] [2021-01-06 19:33:32,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093437786] [2021-01-06 19:33:32,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:33:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:33,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:33:33,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:33,484 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 9 proven. 34 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:33,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:33:33,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2021-01-06 19:33:33,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312775075] [2021-01-06 19:33:33,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 19:33:33,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:33,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 19:33:33,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2021-01-06 19:33:33,491 INFO L87 Difference]: Start difference. First operand 835 states and 1062 transitions. Second operand 19 states. [2021-01-06 19:34:12,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:12,500 INFO L93 Difference]: Finished difference Result 20225 states and 26748 transitions. [2021-01-06 19:34:12,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 608 states. [2021-01-06 19:34:12,501 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 234 [2021-01-06 19:34:12,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:12,543 INFO L225 Difference]: With dead ends: 20225 [2021-01-06 19:34:12,543 INFO L226 Difference]: Without dead ends: 19665 [2021-01-06 19:34:12,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 622 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180750 ImplicationChecksByTransitivity, 29.0s TimeCoverageRelationStatistics Valid=32021, Invalid=356731, Unknown=0, NotChecked=0, Total=388752 [2021-01-06 19:34:12,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19665 states. [2021-01-06 19:34:12,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19665 to 2333. [2021-01-06 19:34:12,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2333 states. [2021-01-06 19:34:12,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 2951 transitions. [2021-01-06 19:34:12,938 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 2951 transitions. Word has length 234 [2021-01-06 19:34:12,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:12,939 INFO L481 AbstractCegarLoop]: Abstraction has 2333 states and 2951 transitions. [2021-01-06 19:34:12,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 19:34:12,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 2951 transitions. [2021-01-06 19:34:12,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-01-06 19:34:12,943 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:12,944 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:34:13,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-01-06 19:34:13,160 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:13,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:13,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1678618060, now seen corresponding path program 1 times [2021-01-06 19:34:13,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:13,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237655244] [2021-01-06 19:34:13,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-01-06 19:34:13,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237655244] [2021-01-06 19:34:13,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:13,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:34:13,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627715228] [2021-01-06 19:34:13,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:34:13,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:13,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:34:13,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:13,395 INFO L87 Difference]: Start difference. First operand 2333 states and 2951 transitions. Second operand 5 states. [2021-01-06 19:34:13,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:13,816 INFO L93 Difference]: Finished difference Result 4330 states and 5499 transitions. [2021-01-06 19:34:13,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:34:13,817 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 234 [2021-01-06 19:34:13,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:13,824 INFO L225 Difference]: With dead ends: 4330 [2021-01-06 19:34:13,824 INFO L226 Difference]: Without dead ends: 2333 [2021-01-06 19:34:13,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:13,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2021-01-06 19:34:14,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 2333. [2021-01-06 19:34:14,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2333 states. [2021-01-06 19:34:14,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 2947 transitions. [2021-01-06 19:34:14,051 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 2947 transitions. Word has length 234 [2021-01-06 19:34:14,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:14,052 INFO L481 AbstractCegarLoop]: Abstraction has 2333 states and 2947 transitions. [2021-01-06 19:34:14,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:34:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 2947 transitions. [2021-01-06 19:34:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-01-06 19:34:14,056 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:14,057 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:34:14,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-01-06 19:34:14,057 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:14,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:14,058 INFO L82 PathProgramCache]: Analyzing trace with hash 145978965, now seen corresponding path program 1 times [2021-01-06 19:34:14,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:14,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217823319] [2021-01-06 19:34:14,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:14,451 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:14,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217823319] [2021-01-06 19:34:14,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547660555] [2021-01-06 19:34:14,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:34:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:14,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:34:14,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:15,278 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:15,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:34:15,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2021-01-06 19:34:15,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319482303] [2021-01-06 19:34:15,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 19:34:15,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:15,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 19:34:15,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2021-01-06 19:34:15,281 INFO L87 Difference]: Start difference. First operand 2333 states and 2947 transitions. Second operand 19 states. [2021-01-06 19:34:28,193 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-01-06 19:34:33,596 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-01-06 19:34:40,503 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2021-01-06 19:34:47,080 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2021-01-06 19:34:47,314 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-01-06 19:34:51,218 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-01-06 19:34:52,693 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2021-01-06 19:34:52,973 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-01-06 19:34:55,387 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2021-01-06 19:34:55,652 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2021-01-06 19:34:56,019 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-01-06 19:34:56,265 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2021-01-06 19:34:59,637 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2021-01-06 19:34:59,977 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2021-01-06 19:35:00,827 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2021-01-06 19:35:00,992 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2021-01-06 19:35:05,045 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2021-01-06 19:35:05,484 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-01-06 19:35:38,603 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-01-06 19:35:43,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:43,653 INFO L93 Difference]: Finished difference Result 37502 states and 47833 transitions. [2021-01-06 19:35:43,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 991 states. [2021-01-06 19:35:43,654 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 235 [2021-01-06 19:35:43,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:43,758 INFO L225 Difference]: With dead ends: 37502 [2021-01-06 19:35:43,758 INFO L226 Difference]: Without dead ends: 35582 [2021-01-06 19:35:43,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 1005 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491639 ImplicationChecksByTransitivity, 71.7s TimeCoverageRelationStatistics Valid=56416, Invalid=956626, Unknown=0, NotChecked=0, Total=1013042 [2021-01-06 19:35:43,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35582 states. [2021-01-06 19:35:44,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35582 to 4930. [2021-01-06 19:35:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4930 states. [2021-01-06 19:35:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4930 states to 4930 states and 6261 transitions. [2021-01-06 19:35:44,855 INFO L78 Accepts]: Start accepts. Automaton has 4930 states and 6261 transitions. Word has length 235 [2021-01-06 19:35:44,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:44,855 INFO L481 AbstractCegarLoop]: Abstraction has 4930 states and 6261 transitions. [2021-01-06 19:35:44,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 19:35:44,855 INFO L276 IsEmpty]: Start isEmpty. Operand 4930 states and 6261 transitions. [2021-01-06 19:35:44,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-01-06 19:35:44,862 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:44,863 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:35:45,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-01-06 19:35:45,078 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:45,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:45,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1737344747, now seen corresponding path program 1 times [2021-01-06 19:35:45,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:45,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190298395] [2021-01-06 19:35:45,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:45,297 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-01-06 19:35:45,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190298395] [2021-01-06 19:35:45,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:35:45,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:35:45,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933852071] [2021-01-06 19:35:45,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:35:45,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:45,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:35:45,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:35:45,299 INFO L87 Difference]: Start difference. First operand 4930 states and 6261 transitions. Second operand 5 states. [2021-01-06 19:35:46,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:46,045 INFO L93 Difference]: Finished difference Result 9529 states and 12124 transitions. [2021-01-06 19:35:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:35:46,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2021-01-06 19:35:46,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:46,056 INFO L225 Difference]: With dead ends: 9529 [2021-01-06 19:35:46,056 INFO L226 Difference]: Without dead ends: 4954 [2021-01-06 19:35:46,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:35:46,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2021-01-06 19:35:46,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 4948. [2021-01-06 19:35:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4948 states. [2021-01-06 19:35:46,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4948 states to 4948 states and 6267 transitions. [2021-01-06 19:35:46,691 INFO L78 Accepts]: Start accepts. Automaton has 4948 states and 6267 transitions. Word has length 235 [2021-01-06 19:35:46,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:46,691 INFO L481 AbstractCegarLoop]: Abstraction has 4948 states and 6267 transitions. [2021-01-06 19:35:46,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:35:46,691 INFO L276 IsEmpty]: Start isEmpty. Operand 4948 states and 6267 transitions. [2021-01-06 19:35:46,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-01-06 19:35:46,698 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:46,699 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:35:46,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-01-06 19:35:46,699 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:46,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:46,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1466521058, now seen corresponding path program 1 times [2021-01-06 19:35:46,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:46,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840819314] [2021-01-06 19:35:46,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:46,808 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-01-06 19:35:46,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840819314] [2021-01-06 19:35:46,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:35:46,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:35:46,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591562514] [2021-01-06 19:35:46,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:35:46,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:46,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:35:46,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:35:46,810 INFO L87 Difference]: Start difference. First operand 4948 states and 6267 transitions. Second operand 3 states. [2021-01-06 19:35:47,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:47,529 INFO L93 Difference]: Finished difference Result 9801 states and 12396 transitions. [2021-01-06 19:35:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:35:47,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2021-01-06 19:35:47,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:47,538 INFO L225 Difference]: With dead ends: 9801 [2021-01-06 19:35:47,538 INFO L226 Difference]: Without dead ends: 5227 [2021-01-06 19:35:47,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:35:47,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5227 states. [2021-01-06 19:35:48,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5227 to 4908. [2021-01-06 19:35:48,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4908 states. [2021-01-06 19:35:48,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4908 states to 4908 states and 6027 transitions. [2021-01-06 19:35:48,258 INFO L78 Accepts]: Start accepts. Automaton has 4908 states and 6027 transitions. Word has length 235 [2021-01-06 19:35:48,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:48,259 INFO L481 AbstractCegarLoop]: Abstraction has 4908 states and 6027 transitions. [2021-01-06 19:35:48,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:35:48,259 INFO L276 IsEmpty]: Start isEmpty. Operand 4908 states and 6027 transitions. [2021-01-06 19:35:48,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-01-06 19:35:48,267 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:48,268 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:35:48,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-01-06 19:35:48,268 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:48,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:48,269 INFO L82 PathProgramCache]: Analyzing trace with hash -2072412374, now seen corresponding path program 1 times [2021-01-06 19:35:48,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:48,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596257505] [2021-01-06 19:35:48,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:48,622 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 41 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:48,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596257505] [2021-01-06 19:35:48,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378497925] [2021-01-06 19:35:48,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:35:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:48,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 30 conjunts are in the unsatisfiable core [2021-01-06 19:35:48,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:35:49,652 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 35 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-01-06 19:35:49,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:35:49,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2021-01-06 19:35:49,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451668251] [2021-01-06 19:35:49,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 19:35:49,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:49,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 19:35:49,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2021-01-06 19:35:49,654 INFO L87 Difference]: Start difference. First operand 4908 states and 6027 transitions. Second operand 20 states. [2021-01-06 19:36:07,559 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-01-06 19:36:10,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:10,146 INFO L93 Difference]: Finished difference Result 31313 states and 38878 transitions. [2021-01-06 19:36:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2021-01-06 19:36:10,147 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 241 [2021-01-06 19:36:10,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:10,169 INFO L225 Difference]: With dead ends: 31313 [2021-01-06 19:36:10,169 INFO L226 Difference]: Without dead ends: 26934 [2021-01-06 19:36:10,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8714 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=3426, Invalid=21380, Unknown=0, NotChecked=0, Total=24806 [2021-01-06 19:36:10,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26934 states. [2021-01-06 19:36:11,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26934 to 5306. [2021-01-06 19:36:11,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5306 states. [2021-01-06 19:36:11,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 6503 transitions. [2021-01-06 19:36:11,052 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 6503 transitions. Word has length 241 [2021-01-06 19:36:11,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:11,053 INFO L481 AbstractCegarLoop]: Abstraction has 5306 states and 6503 transitions. [2021-01-06 19:36:11,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 19:36:11,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 6503 transitions. [2021-01-06 19:36:11,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-01-06 19:36:11,062 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:11,062 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:36:11,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:11,277 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:11,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:11,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1717400557, now seen corresponding path program 1 times [2021-01-06 19:36:11,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:11,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851766389] [2021-01-06 19:36:11,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:11,349 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-01-06 19:36:11,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851766389] [2021-01-06 19:36:11,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:11,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:36:11,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431395490] [2021-01-06 19:36:11,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:36:11,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:11,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:36:11,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:36:11,351 INFO L87 Difference]: Start difference. First operand 5306 states and 6503 transitions. Second operand 3 states. [2021-01-06 19:36:12,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:12,020 INFO L93 Difference]: Finished difference Result 10210 states and 12516 transitions. [2021-01-06 19:36:12,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:36:12,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2021-01-06 19:36:12,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:12,027 INFO L225 Difference]: With dead ends: 10210 [2021-01-06 19:36:12,027 INFO L226 Difference]: Without dead ends: 4917 [2021-01-06 19:36:12,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:36:12,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2021-01-06 19:36:12,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4917. [2021-01-06 19:36:12,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4917 states. [2021-01-06 19:36:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4917 states to 4917 states and 6019 transitions. [2021-01-06 19:36:12,933 INFO L78 Accepts]: Start accepts. Automaton has 4917 states and 6019 transitions. Word has length 244 [2021-01-06 19:36:12,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:12,933 INFO L481 AbstractCegarLoop]: Abstraction has 4917 states and 6019 transitions. [2021-01-06 19:36:12,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:36:12,933 INFO L276 IsEmpty]: Start isEmpty. Operand 4917 states and 6019 transitions. [2021-01-06 19:36:12,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-01-06 19:36:12,941 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:12,941 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:36:12,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-01-06 19:36:12,942 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:12,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:12,942 INFO L82 PathProgramCache]: Analyzing trace with hash -903132770, now seen corresponding path program 1 times [2021-01-06 19:36:12,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:12,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024450025] [2021-01-06 19:36:12,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-01-06 19:36:13,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024450025] [2021-01-06 19:36:13,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:13,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:13,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389923942] [2021-01-06 19:36:13,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:36:13,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:13,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:36:13,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:13,171 INFO L87 Difference]: Start difference. First operand 4917 states and 6019 transitions. Second operand 5 states. [2021-01-06 19:36:13,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:13,868 INFO L93 Difference]: Finished difference Result 9431 states and 11585 transitions. [2021-01-06 19:36:13,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:36:13,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 247 [2021-01-06 19:36:13,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:13,876 INFO L225 Difference]: With dead ends: 9431 [2021-01-06 19:36:13,876 INFO L226 Difference]: Without dead ends: 4923 [2021-01-06 19:36:13,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:13,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4923 states. [2021-01-06 19:36:14,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4923 to 4899. [2021-01-06 19:36:14,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4899 states. [2021-01-06 19:36:14,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4899 states to 4899 states and 5995 transitions. [2021-01-06 19:36:14,726 INFO L78 Accepts]: Start accepts. Automaton has 4899 states and 5995 transitions. Word has length 247 [2021-01-06 19:36:14,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:14,726 INFO L481 AbstractCegarLoop]: Abstraction has 4899 states and 5995 transitions. [2021-01-06 19:36:14,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:36:14,726 INFO L276 IsEmpty]: Start isEmpty. Operand 4899 states and 5995 transitions. [2021-01-06 19:36:14,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-01-06 19:36:14,732 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:14,732 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:36:14,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-01-06 19:36:14,733 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:14,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:14,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1542076957, now seen corresponding path program 1 times [2021-01-06 19:36:14,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:14,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686347578] [2021-01-06 19:36:14,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:15,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686347578] [2021-01-06 19:36:15,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536283323] [2021-01-06 19:36:15,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:15,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 30 conjunts are in the unsatisfiable core [2021-01-06 19:36:15,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:36:16,309 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 28 proven. 17 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-01-06 19:36:16,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:36:16,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2021-01-06 19:36:16,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926287264] [2021-01-06 19:36:16,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 19:36:16,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:16,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 19:36:16,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2021-01-06 19:36:16,311 INFO L87 Difference]: Start difference. First operand 4899 states and 5995 transitions. Second operand 20 states. [2021-01-06 19:36:31,584 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2021-01-06 19:36:32,842 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 28 [2021-01-06 19:36:33,763 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2021-01-06 19:36:38,811 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 30 [2021-01-06 19:36:41,005 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2021-01-06 19:36:41,866 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2021-01-06 19:36:43,256 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2021-01-06 19:36:44,612 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-01-06 19:36:52,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:52,599 INFO L93 Difference]: Finished difference Result 45340 states and 56704 transitions. [2021-01-06 19:36:52,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-01-06 19:36:52,601 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 248 [2021-01-06 19:36:52,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:52,639 INFO L225 Difference]: With dead ends: 45340 [2021-01-06 19:36:52,640 INFO L226 Difference]: Without dead ends: 40961 [2021-01-06 19:36:52,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17618 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=5460, Invalid=38430, Unknown=0, NotChecked=0, Total=43890 [2021-01-06 19:36:52,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40961 states. [2021-01-06 19:36:53,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40961 to 4935. [2021-01-06 19:36:53,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4935 states. [2021-01-06 19:36:53,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 6038 transitions. [2021-01-06 19:36:53,475 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 6038 transitions. Word has length 248 [2021-01-06 19:36:53,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:53,475 INFO L481 AbstractCegarLoop]: Abstraction has 4935 states and 6038 transitions. [2021-01-06 19:36:53,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 19:36:53,476 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 6038 transitions. [2021-01-06 19:36:53,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-01-06 19:36:53,481 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:53,481 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:36:53,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:53,698 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:53,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:53,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1074559157, now seen corresponding path program 1 times [2021-01-06 19:36:53,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:53,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453196483] [2021-01-06 19:36:53,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:54,007 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-01-06 19:36:54,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453196483] [2021-01-06 19:36:54,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:54,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:54,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863991940] [2021-01-06 19:36:54,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:36:54,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:54,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:36:54,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:54,009 INFO L87 Difference]: Start difference. First operand 4935 states and 6038 transitions. Second operand 5 states. [2021-01-06 19:36:54,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:54,783 INFO L93 Difference]: Finished difference Result 9551 states and 11718 transitions. [2021-01-06 19:36:54,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:36:54,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 255 [2021-01-06 19:36:54,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:54,790 INFO L225 Difference]: With dead ends: 9551 [2021-01-06 19:36:54,790 INFO L226 Difference]: Without dead ends: 4971 [2021-01-06 19:36:54,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:54,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4971 states. [2021-01-06 19:36:55,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4971 to 4899. [2021-01-06 19:36:55,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4899 states. [2021-01-06 19:36:55,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4899 states to 4899 states and 5990 transitions. [2021-01-06 19:36:55,441 INFO L78 Accepts]: Start accepts. Automaton has 4899 states and 5990 transitions. Word has length 255 [2021-01-06 19:36:55,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:55,442 INFO L481 AbstractCegarLoop]: Abstraction has 4899 states and 5990 transitions. [2021-01-06 19:36:55,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:36:55,442 INFO L276 IsEmpty]: Start isEmpty. Operand 4899 states and 5990 transitions. [2021-01-06 19:36:55,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-01-06 19:36:55,448 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:55,448 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:36:55,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-01-06 19:36:55,448 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:36:55,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:55,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1736479699, now seen corresponding path program 1 times [2021-01-06 19:36:55,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:55,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170906711] [2021-01-06 19:36:55,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:55,952 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:55,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170906711] [2021-01-06 19:36:55,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145710469] [2021-01-06 19:36:55,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:56,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:36:56,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:36:56,984 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:56,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:36:56,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 9 [2021-01-06 19:36:56,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976085703] [2021-01-06 19:36:56,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 19:36:56,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:56,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 19:36:56,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:36:56,986 INFO L87 Difference]: Start difference. First operand 4899 states and 5990 transitions. Second operand 9 states. [2021-01-06 19:37:02,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:02,456 INFO L93 Difference]: Finished difference Result 27040 states and 33455 transitions. [2021-01-06 19:37:02,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-06 19:37:02,460 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 255 [2021-01-06 19:37:02,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:02,480 INFO L225 Difference]: With dead ends: 27040 [2021-01-06 19:37:02,480 INFO L226 Difference]: Without dead ends: 22691 [2021-01-06 19:37:02,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 262 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=340, Invalid=1382, Unknown=0, NotChecked=0, Total=1722 [2021-01-06 19:37:02,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22691 states. [2021-01-06 19:37:04,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22691 to 12733. [2021-01-06 19:37:04,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12733 states. [2021-01-06 19:37:04,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12733 states to 12733 states and 15607 transitions. [2021-01-06 19:37:04,363 INFO L78 Accepts]: Start accepts. Automaton has 12733 states and 15607 transitions. Word has length 255 [2021-01-06 19:37:04,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:04,364 INFO L481 AbstractCegarLoop]: Abstraction has 12733 states and 15607 transitions. [2021-01-06 19:37:04,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 19:37:04,364 INFO L276 IsEmpty]: Start isEmpty. Operand 12733 states and 15607 transitions. [2021-01-06 19:37:04,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-01-06 19:37:04,375 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:04,376 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:37:04,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-01-06 19:37:04,577 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:04,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:04,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1424134903, now seen corresponding path program 1 times [2021-01-06 19:37:04,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:04,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708272973] [2021-01-06 19:37:04,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:05,055 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 2 proven. 47 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:37:05,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708272973] [2021-01-06 19:37:05,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967681344] [2021-01-06 19:37:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:37:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:05,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 30 conjunts are in the unsatisfiable core [2021-01-06 19:37:05,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:37:06,303 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 41 proven. 21 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-01-06 19:37:06,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:37:06,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2021-01-06 19:37:06,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284212961] [2021-01-06 19:37:06,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 19:37:06,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:06,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 19:37:06,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2021-01-06 19:37:06,305 INFO L87 Difference]: Start difference. First operand 12733 states and 15607 transitions. Second operand 20 states.