/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.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 19:33:12,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 19:33:12,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 19:33:12,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 19:33:12,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 19:33:12,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 19:33:12,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 19:33:12,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 19:33:12,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 19:33:12,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 19:33:12,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 19:33:12,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 19:33:12,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 19:33:12,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 19:33:12,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 19:33:12,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 19:33:12,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 19:33:12,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 19:33:12,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 19:33:12,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 19:33:12,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 19:33:12,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 19:33:12,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 19:33:12,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 19:33:12,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 19:33:12,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 19:33:12,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 19:33:12,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 19:33:12,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 19:33:12,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 19:33:12,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 19:33:12,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 19:33:12,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 19:33:12,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 19:33:12,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 19:33:12,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 19:33:12,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 19:33:12,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 19:33:12,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 19:33:12,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 19:33:12,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 19:33:12,228 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 19:33:12,286 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 19:33:12,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 19:33:12,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 19:33:12,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 19:33:12,289 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 19:33:12,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 19:33:12,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 19:33:12,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 19:33:12,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 19:33:12,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 19:33:12,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 19:33:12,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 19:33:12,293 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 19:33:12,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 19:33:12,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 19:33:12,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 19:33:12,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 19:33:12,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 19:33:12,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 19:33:12,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 19:33:12,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 19:33:12,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 19:33:12,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 19:33:12,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 19:33:12,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 19:33:12,296 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 19:33:12,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 19:33:12,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 19:33:12,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 19:33:12,749 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 19:33:12,749 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 19:33:12,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2021-01-06 19:33:12,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/66c541f29/2bf67d742bff4f61ad2e7690b8287f67/FLAG9f5728599 [2021-01-06 19:33:13,516 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 19:33:13,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2021-01-06 19:33:13,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/66c541f29/2bf67d742bff4f61ad2e7690b8287f67/FLAG9f5728599 [2021-01-06 19:33:13,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/66c541f29/2bf67d742bff4f61ad2e7690b8287f67 [2021-01-06 19:33:13,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 19:33:13,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 19:33:13,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 19:33:13,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 19:33:13,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 19:33:13,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:33:13" (1/1) ... [2021-01-06 19:33:13,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7833b5bf 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 19:33:13,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:33:13" (1/1) ... [2021-01-06 19:33:13,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 19:33:13,956 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 19:33:14,198 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.BOUNDED-10.pals.c[11956,11969] [2021-01-06 19:33:14,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:33:14,214 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 19:33:14,342 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.BOUNDED-10.pals.c[11956,11969] [2021-01-06 19:33:14,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:33:14,385 INFO L208 MainTranslator]: Completed translation [2021-01-06 19:33:14,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:14 WrapperNode [2021-01-06 19:33:14,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 19:33:14,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 19:33:14,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 19:33:14,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 19:33:14,395 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 19:33:14,410 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 19:33:14,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 19:33:14,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 19:33:14,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 19:33:14,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 19:33:14,547 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 19:33:14,547 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 19:33:14,571 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 19:33:14,572 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 19:33:14,628 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 19:33:14,707 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 19:33:14,720 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 19:33:14,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 19:33:14,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 19:33:14,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 19:33:14,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 19:33:14,747 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 19:33:14,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 19:33:14,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 19:33:14,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 19:33:14,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 19:33:16,353 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 19:33:16,354 INFO L299 CfgBuilder]: Removed 173 assume(true) statements. [2021-01-06 19:33:16,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:33:16 BoogieIcfgContainer [2021-01-06 19:33:16,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 19:33:16,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 19:33:16,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 19:33:16,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 19:33:16,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 07:33:13" (1/3) ... [2021-01-06 19:33:16,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722c48fc 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 19:33:16,364 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 19:33:16,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722c48fc 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 19:33:16,364 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 19:33:16,366 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2021-01-06 19:33:16,373 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 19:33:16,379 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 37 error locations. [2021-01-06 19:33:16,398 INFO L253 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2021-01-06 19:33:16,431 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 19:33:16,431 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 19:33:16,431 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 19:33:16,432 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 19:33:16,432 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 19:33:16,432 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 19:33:16,434 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 19:33:16,434 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 19:33:16,476 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states. [2021-01-06 19:33:16,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 19:33:16,484 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:16,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:16,488 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 19:33:16,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:16,495 INFO L82 PathProgramCache]: Analyzing trace with hash 595705480, now seen corresponding path program 1 times [2021-01-06 19:33:16,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:16,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919903457] [2021-01-06 19:33:16,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:16,731 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 19:33:16,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919903457] [2021-01-06 19:33:16,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:16,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:16,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801904800] [2021-01-06 19:33:16,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:16,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:16,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:16,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:16,764 INFO L87 Difference]: Start difference. First operand 518 states. Second operand 3 states. [2021-01-06 19:33:17,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:17,061 INFO L93 Difference]: Finished difference Result 1244 states and 2057 transitions. [2021-01-06 19:33:17,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:17,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-01-06 19:33:17,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:17,100 INFO L225 Difference]: With dead ends: 1244 [2021-01-06 19:33:17,100 INFO L226 Difference]: Without dead ends: 720 [2021-01-06 19:33:17,115 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 19:33:17,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2021-01-06 19:33:17,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 454. [2021-01-06 19:33:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2021-01-06 19:33:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 709 transitions. [2021-01-06 19:33:17,220 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 709 transitions. Word has length 9 [2021-01-06 19:33:17,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:17,221 INFO L481 AbstractCegarLoop]: Abstraction has 454 states and 709 transitions. [2021-01-06 19:33:17,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:17,221 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 709 transitions. [2021-01-06 19:33:17,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 19:33:17,223 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:17,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:17,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 19:33:17,224 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 19:33:17,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:17,225 INFO L82 PathProgramCache]: Analyzing trace with hash -503954138, now seen corresponding path program 1 times [2021-01-06 19:33:17,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:17,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949772533] [2021-01-06 19:33:17,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:17,322 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 19:33:17,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949772533] [2021-01-06 19:33:17,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:17,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:17,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118486894] [2021-01-06 19:33:17,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:17,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:17,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:17,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:17,329 INFO L87 Difference]: Start difference. First operand 454 states and 709 transitions. Second operand 3 states. [2021-01-06 19:33:17,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:17,419 INFO L93 Difference]: Finished difference Result 1122 states and 1737 transitions. [2021-01-06 19:33:17,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:17,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-01-06 19:33:17,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:17,425 INFO L225 Difference]: With dead ends: 1122 [2021-01-06 19:33:17,426 INFO L226 Difference]: Without dead ends: 670 [2021-01-06 19:33:17,428 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 19:33:17,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2021-01-06 19:33:17,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 421. [2021-01-06 19:33:17,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2021-01-06 19:33:17,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 651 transitions. [2021-01-06 19:33:17,475 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 651 transitions. Word has length 10 [2021-01-06 19:33:17,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:17,476 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 651 transitions. [2021-01-06 19:33:17,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:17,477 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 651 transitions. [2021-01-06 19:33:17,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 19:33:17,480 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:17,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:17,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 19:33:17,481 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 19:33:17,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:17,486 INFO L82 PathProgramCache]: Analyzing trace with hash -248055967, now seen corresponding path program 1 times [2021-01-06 19:33:17,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:17,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92554274] [2021-01-06 19:33:17,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:17,605 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 19:33:17,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92554274] [2021-01-06 19:33:17,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:17,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:17,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617794941] [2021-01-06 19:33:17,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:17,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:17,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:17,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:17,611 INFO L87 Difference]: Start difference. First operand 421 states and 651 transitions. Second operand 3 states. [2021-01-06 19:33:17,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:17,688 INFO L93 Difference]: Finished difference Result 1241 states and 1924 transitions. [2021-01-06 19:33:17,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:17,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2021-01-06 19:33:17,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:17,694 INFO L225 Difference]: With dead ends: 1241 [2021-01-06 19:33:17,695 INFO L226 Difference]: Without dead ends: 830 [2021-01-06 19:33:17,696 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 19:33:17,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2021-01-06 19:33:17,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 425. [2021-01-06 19:33:17,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2021-01-06 19:33:17,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 655 transitions. [2021-01-06 19:33:17,722 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 655 transitions. Word has length 14 [2021-01-06 19:33:17,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:17,729 INFO L481 AbstractCegarLoop]: Abstraction has 425 states and 655 transitions. [2021-01-06 19:33:17,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:17,730 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 655 transitions. [2021-01-06 19:33:17,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 19:33:17,733 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:17,733 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 19:33:17,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 19:33:17,736 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 19:33:17,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:17,737 INFO L82 PathProgramCache]: Analyzing trace with hash -35486156, now seen corresponding path program 1 times [2021-01-06 19:33:17,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:17,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808023643] [2021-01-06 19:33:17,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:17,797 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 19:33:17,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808023643] [2021-01-06 19:33:17,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:17,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:17,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586189644] [2021-01-06 19:33:17,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:17,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:17,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:17,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:17,801 INFO L87 Difference]: Start difference. First operand 425 states and 655 transitions. Second operand 4 states. [2021-01-06 19:33:17,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:17,885 INFO L93 Difference]: Finished difference Result 1564 states and 2392 transitions. [2021-01-06 19:33:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:17,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2021-01-06 19:33:17,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:17,893 INFO L225 Difference]: With dead ends: 1564 [2021-01-06 19:33:17,893 INFO L226 Difference]: Without dead ends: 1153 [2021-01-06 19:33:17,895 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 19:33:17,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2021-01-06 19:33:17,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 427. [2021-01-06 19:33:17,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2021-01-06 19:33:17,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 657 transitions. [2021-01-06 19:33:17,915 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 657 transitions. Word has length 18 [2021-01-06 19:33:17,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:17,916 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 657 transitions. [2021-01-06 19:33:17,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:17,916 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 657 transitions. [2021-01-06 19:33:17,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 19:33:17,917 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:17,917 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 19:33:17,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 19:33:17,918 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 19:33:17,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:17,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1707916525, now seen corresponding path program 1 times [2021-01-06 19:33:17,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:17,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558824486] [2021-01-06 19:33:17,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:17,968 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 19:33:17,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558824486] [2021-01-06 19:33:17,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:17,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:17,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851236333] [2021-01-06 19:33:17,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:17,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:17,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:17,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:17,971 INFO L87 Difference]: Start difference. First operand 427 states and 657 transitions. Second operand 4 states. [2021-01-06 19:33:18,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:18,048 INFO L93 Difference]: Finished difference Result 904 states and 1380 transitions. [2021-01-06 19:33:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:18,051 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2021-01-06 19:33:18,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:18,055 INFO L225 Difference]: With dead ends: 904 [2021-01-06 19:33:18,055 INFO L226 Difference]: Without dead ends: 662 [2021-01-06 19:33:18,056 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 19:33:18,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-01-06 19:33:18,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 425. [2021-01-06 19:33:18,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2021-01-06 19:33:18,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 650 transitions. [2021-01-06 19:33:18,074 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 650 transitions. Word has length 19 [2021-01-06 19:33:18,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:18,074 INFO L481 AbstractCegarLoop]: Abstraction has 425 states and 650 transitions. [2021-01-06 19:33:18,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:18,074 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 650 transitions. [2021-01-06 19:33:18,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 19:33:18,076 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:18,076 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 19:33:18,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 19:33:18,077 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 19:33:18,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:18,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1967275947, now seen corresponding path program 1 times [2021-01-06 19:33:18,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:18,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878167155] [2021-01-06 19:33:18,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:18,167 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 19:33:18,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878167155] [2021-01-06 19:33:18,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788438368] [2021-01-06 19:33:18,168 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 19:33:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:18,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:33:18,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:18,431 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 19:33:18,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:33:18,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-01-06 19:33:18,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776835587] [2021-01-06 19:33:18,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:33:18,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:18,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:33:18,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:18,436 INFO L87 Difference]: Start difference. First operand 425 states and 650 transitions. Second operand 5 states. [2021-01-06 19:33:18,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:18,559 INFO L93 Difference]: Finished difference Result 1655 states and 2545 transitions. [2021-01-06 19:33:18,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:18,560 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2021-01-06 19:33:18,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:18,567 INFO L225 Difference]: With dead ends: 1655 [2021-01-06 19:33:18,567 INFO L226 Difference]: Without dead ends: 1241 [2021-01-06 19:33:18,569 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 19:33:18,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2021-01-06 19:33:18,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 571. [2021-01-06 19:33:18,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2021-01-06 19:33:18,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 900 transitions. [2021-01-06 19:33:18,595 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 900 transitions. Word has length 21 [2021-01-06 19:33:18,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:18,595 INFO L481 AbstractCegarLoop]: Abstraction has 571 states and 900 transitions. [2021-01-06 19:33:18,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:33:18,595 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 900 transitions. [2021-01-06 19:33:18,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-06 19:33:18,596 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:18,597 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 19:33:18,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-01-06 19:33:18,812 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 19:33:18,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:18,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1165168607, now seen corresponding path program 2 times [2021-01-06 19:33:18,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:18,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947080908] [2021-01-06 19:33:18,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:18,883 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 19:33:18,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947080908] [2021-01-06 19:33:18,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:18,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:18,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594907643] [2021-01-06 19:33:18,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:18,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:18,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:18,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:18,889 INFO L87 Difference]: Start difference. First operand 571 states and 900 transitions. Second operand 3 states. [2021-01-06 19:33:19,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:19,019 INFO L93 Difference]: Finished difference Result 1288 states and 2001 transitions. [2021-01-06 19:33:19,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:19,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-01-06 19:33:19,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:19,025 INFO L225 Difference]: With dead ends: 1288 [2021-01-06 19:33:19,025 INFO L226 Difference]: Without dead ends: 775 [2021-01-06 19:33:19,027 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 19:33:19,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2021-01-06 19:33:19,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 505. [2021-01-06 19:33:19,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2021-01-06 19:33:19,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 775 transitions. [2021-01-06 19:33:19,051 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 775 transitions. Word has length 28 [2021-01-06 19:33:19,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:19,052 INFO L481 AbstractCegarLoop]: Abstraction has 505 states and 775 transitions. [2021-01-06 19:33:19,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:19,052 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 775 transitions. [2021-01-06 19:33:19,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-06 19:33:19,053 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:19,053 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 19:33:19,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 19:33:19,054 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 19:33:19,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,054 INFO L82 PathProgramCache]: Analyzing trace with hash 777427029, now seen corresponding path program 1 times [2021-01-06 19:33:19,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092717736] [2021-01-06 19:33:19,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:19,117 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 19:33:19,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092717736] [2021-01-06 19:33:19,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:19,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:19,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605884615] [2021-01-06 19:33:19,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:19,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:19,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:19,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:19,121 INFO L87 Difference]: Start difference. First operand 505 states and 775 transitions. Second operand 3 states. [2021-01-06 19:33:19,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:19,185 INFO L93 Difference]: Finished difference Result 1156 states and 1760 transitions. [2021-01-06 19:33:19,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:19,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-01-06 19:33:19,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:19,210 INFO L225 Difference]: With dead ends: 1156 [2021-01-06 19:33:19,210 INFO L226 Difference]: Without dead ends: 682 [2021-01-06 19:33:19,212 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 19:33:19,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2021-01-06 19:33:19,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 454. [2021-01-06 19:33:19,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2021-01-06 19:33:19,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 681 transitions. [2021-01-06 19:33:19,228 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 681 transitions. Word has length 28 [2021-01-06 19:33:19,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:19,229 INFO L481 AbstractCegarLoop]: Abstraction has 454 states and 681 transitions. [2021-01-06 19:33:19,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:19,229 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 681 transitions. [2021-01-06 19:33:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-06 19:33:19,233 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:19,234 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 19:33:19,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 19:33:19,234 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 19:33:19,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,235 INFO L82 PathProgramCache]: Analyzing trace with hash 104948594, now seen corresponding path program 1 times [2021-01-06 19:33:19,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519888734] [2021-01-06 19:33:19,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:19,312 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 19:33:19,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519888734] [2021-01-06 19:33:19,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:19,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:19,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760354936] [2021-01-06 19:33:19,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:19,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:19,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:19,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:19,315 INFO L87 Difference]: Start difference. First operand 454 states and 681 transitions. Second operand 4 states. [2021-01-06 19:33:19,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:19,384 INFO L93 Difference]: Finished difference Result 1090 states and 1641 transitions. [2021-01-06 19:33:19,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:19,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2021-01-06 19:33:19,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:19,390 INFO L225 Difference]: With dead ends: 1090 [2021-01-06 19:33:19,391 INFO L226 Difference]: Without dead ends: 680 [2021-01-06 19:33:19,392 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 19:33:19,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2021-01-06 19:33:19,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 454. [2021-01-06 19:33:19,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2021-01-06 19:33:19,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 679 transitions. [2021-01-06 19:33:19,409 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 679 transitions. Word has length 38 [2021-01-06 19:33:19,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:19,410 INFO L481 AbstractCegarLoop]: Abstraction has 454 states and 679 transitions. [2021-01-06 19:33:19,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:19,410 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 679 transitions. [2021-01-06 19:33:19,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-06 19:33:19,411 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:19,411 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 19:33:19,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 19:33:19,412 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 19:33:19,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1338937392, now seen corresponding path program 1 times [2021-01-06 19:33:19,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871248956] [2021-01-06 19:33:19,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:19,501 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 19:33:19,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871248956] [2021-01-06 19:33:19,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:19,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:19,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53199129] [2021-01-06 19:33:19,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:19,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:19,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:19,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:19,505 INFO L87 Difference]: Start difference. First operand 454 states and 679 transitions. Second operand 3 states. [2021-01-06 19:33:19,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:19,558 INFO L93 Difference]: Finished difference Result 1026 states and 1540 transitions. [2021-01-06 19:33:19,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:19,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2021-01-06 19:33:19,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:19,562 INFO L225 Difference]: With dead ends: 1026 [2021-01-06 19:33:19,563 INFO L226 Difference]: Without dead ends: 635 [2021-01-06 19:33:19,565 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 19:33:19,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2021-01-06 19:33:19,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 410. [2021-01-06 19:33:19,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2021-01-06 19:33:19,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 605 transitions. [2021-01-06 19:33:19,580 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 605 transitions. Word has length 50 [2021-01-06 19:33:19,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:19,582 INFO L481 AbstractCegarLoop]: Abstraction has 410 states and 605 transitions. [2021-01-06 19:33:19,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:19,583 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 605 transitions. [2021-01-06 19:33:19,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-06 19:33:19,584 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:19,584 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 19:33:19,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 19:33:19,586 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 19:33:19,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,587 INFO L82 PathProgramCache]: Analyzing trace with hash 970476669, now seen corresponding path program 1 times [2021-01-06 19:33:19,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726416150] [2021-01-06 19:33:19,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:19,668 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 19:33:19,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726416150] [2021-01-06 19:33:19,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:19,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:19,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009851749] [2021-01-06 19:33:19,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:19,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:19,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:19,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:19,672 INFO L87 Difference]: Start difference. First operand 410 states and 605 transitions. Second operand 3 states. [2021-01-06 19:33:19,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:19,743 INFO L93 Difference]: Finished difference Result 860 states and 1269 transitions. [2021-01-06 19:33:19,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:19,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2021-01-06 19:33:19,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:19,747 INFO L225 Difference]: With dead ends: 860 [2021-01-06 19:33:19,747 INFO L226 Difference]: Without dead ends: 505 [2021-01-06 19:33:19,748 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 19:33:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-01-06 19:33:19,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 366. [2021-01-06 19:33:19,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2021-01-06 19:33:19,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 517 transitions. [2021-01-06 19:33:19,762 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 517 transitions. Word has length 51 [2021-01-06 19:33:19,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:19,762 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 517 transitions. [2021-01-06 19:33:19,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:19,762 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 517 transitions. [2021-01-06 19:33:19,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-06 19:33:19,764 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:19,764 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 19:33:19,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 19:33:19,765 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 19:33:19,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,765 INFO L82 PathProgramCache]: Analyzing trace with hash 216341264, now seen corresponding path program 1 times [2021-01-06 19:33:19,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387337724] [2021-01-06 19:33:19,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:19,845 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 19:33:19,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387337724] [2021-01-06 19:33:19,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:19,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:19,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328186352] [2021-01-06 19:33:19,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:19,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:19,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:19,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:19,848 INFO L87 Difference]: Start difference. First operand 366 states and 517 transitions. Second operand 4 states. [2021-01-06 19:33:19,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:19,906 INFO L93 Difference]: Finished difference Result 868 states and 1248 transitions. [2021-01-06 19:33:19,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:19,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2021-01-06 19:33:19,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:19,911 INFO L225 Difference]: With dead ends: 868 [2021-01-06 19:33:19,911 INFO L226 Difference]: Without dead ends: 574 [2021-01-06 19:33:19,912 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 19:33:19,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-01-06 19:33:19,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 366. [2021-01-06 19:33:19,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2021-01-06 19:33:19,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 515 transitions. [2021-01-06 19:33:19,925 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 515 transitions. Word has length 62 [2021-01-06 19:33:19,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:19,926 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 515 transitions. [2021-01-06 19:33:19,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:19,927 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 515 transitions. [2021-01-06 19:33:19,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-01-06 19:33:19,927 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:19,928 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 19:33:19,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 19:33:19,928 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 19:33:19,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:19,929 INFO L82 PathProgramCache]: Analyzing trace with hash 542276843, now seen corresponding path program 1 times [2021-01-06 19:33:19,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:19,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361805783] [2021-01-06 19:33:19,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:20,028 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 19:33:20,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361805783] [2021-01-06 19:33:20,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462624923] [2021-01-06 19:33:20,029 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 19:33:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:20,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-06 19:33:20,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:20,278 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 19:33:20,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:33:20,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-01-06 19:33:20,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955268792] [2021-01-06 19:33:20,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:33:20,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:20,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:33:20,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:33:20,283 INFO L87 Difference]: Start difference. First operand 366 states and 515 transitions. Second operand 6 states. [2021-01-06 19:33:20,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:20,400 INFO L93 Difference]: Finished difference Result 1414 states and 2021 transitions. [2021-01-06 19:33:20,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:20,401 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2021-01-06 19:33:20,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:20,407 INFO L225 Difference]: With dead ends: 1414 [2021-01-06 19:33:20,407 INFO L226 Difference]: Without dead ends: 1067 [2021-01-06 19:33:20,409 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 19:33:20,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2021-01-06 19:33:20,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 439. [2021-01-06 19:33:20,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2021-01-06 19:33:20,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 612 transitions. [2021-01-06 19:33:20,435 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 612 transitions. Word has length 76 [2021-01-06 19:33:20,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:20,435 INFO L481 AbstractCegarLoop]: Abstraction has 439 states and 612 transitions. [2021-01-06 19:33:20,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:33:20,436 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 612 transitions. [2021-01-06 19:33:20,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-01-06 19:33:20,437 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:20,437 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 19:33:20,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-06 19:33:20,653 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 19:33:20,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:20,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1726325344, now seen corresponding path program 2 times [2021-01-06 19:33:20,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:20,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298427364] [2021-01-06 19:33:20,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:20,722 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 19:33:20,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298427364] [2021-01-06 19:33:20,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:20,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:20,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105971892] [2021-01-06 19:33:20,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:20,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:20,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:20,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:20,725 INFO L87 Difference]: Start difference. First operand 439 states and 612 transitions. Second operand 3 states. [2021-01-06 19:33:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:20,777 INFO L93 Difference]: Finished difference Result 856 states and 1238 transitions. [2021-01-06 19:33:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:20,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2021-01-06 19:33:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:20,795 INFO L225 Difference]: With dead ends: 856 [2021-01-06 19:33:20,795 INFO L226 Difference]: Without dead ends: 559 [2021-01-06 19:33:20,796 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 19:33:20,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-01-06 19:33:20,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 395. [2021-01-06 19:33:20,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2021-01-06 19:33:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 554 transitions. [2021-01-06 19:33:20,817 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 554 transitions. Word has length 103 [2021-01-06 19:33:20,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:20,819 INFO L481 AbstractCegarLoop]: Abstraction has 395 states and 554 transitions. [2021-01-06 19:33:20,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:20,819 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 554 transitions. [2021-01-06 19:33:20,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-01-06 19:33:20,821 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:20,821 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 19:33:20,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 19:33:20,822 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 19:33:20,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:20,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1846233333, now seen corresponding path program 1 times [2021-01-06 19:33:20,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:20,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740007990] [2021-01-06 19:33:20,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:20,910 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 19:33:20,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740007990] [2021-01-06 19:33:20,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:20,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:20,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256458835] [2021-01-06 19:33:20,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:20,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:20,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:20,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:20,913 INFO L87 Difference]: Start difference. First operand 395 states and 554 transitions. Second operand 3 states. [2021-01-06 19:33:20,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:20,948 INFO L93 Difference]: Finished difference Result 568 states and 813 transitions. [2021-01-06 19:33:20,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:20,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2021-01-06 19:33:20,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:20,951 INFO L225 Difference]: With dead ends: 568 [2021-01-06 19:33:20,951 INFO L226 Difference]: Without dead ends: 311 [2021-01-06 19:33:20,954 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 19:33:20,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-01-06 19:33:20,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2021-01-06 19:33:20,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2021-01-06 19:33:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 431 transitions. [2021-01-06 19:33:20,968 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 431 transitions. Word has length 112 [2021-01-06 19:33:20,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:20,969 INFO L481 AbstractCegarLoop]: Abstraction has 311 states and 431 transitions. [2021-01-06 19:33:20,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:20,969 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 431 transitions. [2021-01-06 19:33:20,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-06 19:33:20,970 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:20,970 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 19:33:20,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 19:33:20,971 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 19:33:20,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:20,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1519105475, now seen corresponding path program 1 times [2021-01-06 19:33:20,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:20,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636193707] [2021-01-06 19:33:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:21,053 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 19:33:21,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636193707] [2021-01-06 19:33:21,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:21,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:21,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86767565] [2021-01-06 19:33:21,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:21,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:21,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:21,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:21,056 INFO L87 Difference]: Start difference. First operand 311 states and 431 transitions. Second operand 4 states. [2021-01-06 19:33:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:21,097 INFO L93 Difference]: Finished difference Result 483 states and 689 transitions. [2021-01-06 19:33:21,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:21,097 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2021-01-06 19:33:21,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:21,100 INFO L225 Difference]: With dead ends: 483 [2021-01-06 19:33:21,100 INFO L226 Difference]: Without dead ends: 311 [2021-01-06 19:33:21,101 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 19:33:21,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-01-06 19:33:21,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2021-01-06 19:33:21,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2021-01-06 19:33:21,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 428 transitions. [2021-01-06 19:33:21,115 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 428 transitions. Word has length 115 [2021-01-06 19:33:21,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,115 INFO L481 AbstractCegarLoop]: Abstraction has 311 states and 428 transitions. [2021-01-06 19:33:21,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:21,115 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 428 transitions. [2021-01-06 19:33:21,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-01-06 19:33:21,117 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,117 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 19:33:21,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 19:33:21,117 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 19:33:21,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1299139450, now seen corresponding path program 1 times [2021-01-06 19:33:21,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144283444] [2021-01-06 19:33:21,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:21,193 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 19:33:21,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144283444] [2021-01-06 19:33:21,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:21,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:21,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805421779] [2021-01-06 19:33:21,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:21,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:21,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:21,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,199 INFO L87 Difference]: Start difference. First operand 311 states and 428 transitions. Second operand 3 states. [2021-01-06 19:33:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:21,238 INFO L93 Difference]: Finished difference Result 612 states and 885 transitions. [2021-01-06 19:33:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:21,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2021-01-06 19:33:21,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:21,241 INFO L225 Difference]: With dead ends: 612 [2021-01-06 19:33:21,242 INFO L226 Difference]: Without dead ends: 445 [2021-01-06 19:33:21,244 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 19:33:21,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2021-01-06 19:33:21,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 306. [2021-01-06 19:33:21,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2021-01-06 19:33:21,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 420 transitions. [2021-01-06 19:33:21,257 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 420 transitions. Word has length 126 [2021-01-06 19:33:21,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,258 INFO L481 AbstractCegarLoop]: Abstraction has 306 states and 420 transitions. [2021-01-06 19:33:21,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:21,258 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 420 transitions. [2021-01-06 19:33:21,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-01-06 19:33:21,259 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,260 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 19:33:21,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 19:33:21,260 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 19:33:21,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1896761966, now seen corresponding path program 1 times [2021-01-06 19:33:21,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251504235] [2021-01-06 19:33:21,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:21,360 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 19:33:21,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251504235] [2021-01-06 19:33:21,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:21,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:21,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831195008] [2021-01-06 19:33:21,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:21,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:21,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:21,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,367 INFO L87 Difference]: Start difference. First operand 306 states and 420 transitions. Second operand 3 states. [2021-01-06 19:33:21,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:21,404 INFO L93 Difference]: Finished difference Result 593 states and 856 transitions. [2021-01-06 19:33:21,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:21,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2021-01-06 19:33:21,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:21,408 INFO L225 Difference]: With dead ends: 593 [2021-01-06 19:33:21,408 INFO L226 Difference]: Without dead ends: 431 [2021-01-06 19:33:21,409 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 19:33:21,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-01-06 19:33:21,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 302. [2021-01-06 19:33:21,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2021-01-06 19:33:21,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 413 transitions. [2021-01-06 19:33:21,423 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 413 transitions. Word has length 131 [2021-01-06 19:33:21,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,423 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 413 transitions. [2021-01-06 19:33:21,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:21,423 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 413 transitions. [2021-01-06 19:33:21,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-01-06 19:33:21,425 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,425 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 19:33:21,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-06 19:33:21,426 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 19:33:21,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,426 INFO L82 PathProgramCache]: Analyzing trace with hash 163782382, now seen corresponding path program 1 times [2021-01-06 19:33:21,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373643671] [2021-01-06 19:33:21,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:21,517 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 19:33:21,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373643671] [2021-01-06 19:33:21,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:21,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:21,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050053033] [2021-01-06 19:33:21,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:21,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:21,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:21,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,522 INFO L87 Difference]: Start difference. First operand 302 states and 413 transitions. Second operand 3 states. [2021-01-06 19:33:21,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:21,551 INFO L93 Difference]: Finished difference Result 458 states and 649 transitions. [2021-01-06 19:33:21,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:21,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2021-01-06 19:33:21,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:21,554 INFO L225 Difference]: With dead ends: 458 [2021-01-06 19:33:21,554 INFO L226 Difference]: Without dead ends: 300 [2021-01-06 19:33:21,555 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 19:33:21,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-01-06 19:33:21,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 299. [2021-01-06 19:33:21,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-01-06 19:33:21,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 407 transitions. [2021-01-06 19:33:21,570 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 407 transitions. Word has length 137 [2021-01-06 19:33:21,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,571 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 407 transitions. [2021-01-06 19:33:21,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:21,571 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 407 transitions. [2021-01-06 19:33:21,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-01-06 19:33:21,573 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,574 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 19:33:21,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 19:33:21,574 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 19:33:21,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,575 INFO L82 PathProgramCache]: Analyzing trace with hash -665869747, now seen corresponding path program 1 times [2021-01-06 19:33:21,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325325029] [2021-01-06 19:33:21,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:21,681 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 19:33:21,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325325029] [2021-01-06 19:33:21,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:21,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:21,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699361816] [2021-01-06 19:33:21,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:21,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:21,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:21,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,684 INFO L87 Difference]: Start difference. First operand 299 states and 407 transitions. Second operand 3 states. [2021-01-06 19:33:21,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:21,699 INFO L93 Difference]: Finished difference Result 500 states and 708 transitions. [2021-01-06 19:33:21,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:21,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2021-01-06 19:33:21,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:21,702 INFO L225 Difference]: With dead ends: 500 [2021-01-06 19:33:21,702 INFO L226 Difference]: Without dead ends: 345 [2021-01-06 19:33:21,705 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 19:33:21,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-01-06 19:33:21,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 296. [2021-01-06 19:33:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2021-01-06 19:33:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 403 transitions. [2021-01-06 19:33:21,721 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 403 transitions. Word has length 144 [2021-01-06 19:33:21,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,722 INFO L481 AbstractCegarLoop]: Abstraction has 296 states and 403 transitions. [2021-01-06 19:33:21,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:21,722 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 403 transitions. [2021-01-06 19:33:21,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-01-06 19:33:21,723 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,724 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 19:33:21,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-06 19:33:21,724 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 19:33:21,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1327302471, now seen corresponding path program 1 times [2021-01-06 19:33:21,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805293644] [2021-01-06 19:33:21,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:21,863 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 19:33:21,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805293644] [2021-01-06 19:33:21,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:21,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:21,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516923164] [2021-01-06 19:33:21,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:21,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:21,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:21,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:21,866 INFO L87 Difference]: Start difference. First operand 296 states and 403 transitions. Second operand 3 states. [2021-01-06 19:33:21,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:21,895 INFO L93 Difference]: Finished difference Result 478 states and 668 transitions. [2021-01-06 19:33:21,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:21,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-01-06 19:33:21,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:21,898 INFO L225 Difference]: With dead ends: 478 [2021-01-06 19:33:21,898 INFO L226 Difference]: Without dead ends: 296 [2021-01-06 19:33:21,899 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 19:33:21,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-01-06 19:33:21,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2021-01-06 19:33:21,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2021-01-06 19:33:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 400 transitions. [2021-01-06 19:33:21,912 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 400 transitions. Word has length 147 [2021-01-06 19:33:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:21,913 INFO L481 AbstractCegarLoop]: Abstraction has 296 states and 400 transitions. [2021-01-06 19:33:21,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:21,913 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 400 transitions. [2021-01-06 19:33:21,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-01-06 19:33:21,915 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:21,915 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 19:33:21,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-06 19:33:21,915 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 19:33:21,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:21,916 INFO L82 PathProgramCache]: Analyzing trace with hash -2087750763, now seen corresponding path program 1 times [2021-01-06 19:33:21,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:21,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546287510] [2021-01-06 19:33:21,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:22,049 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 19:33:22,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546287510] [2021-01-06 19:33:22,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:22,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:22,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396575927] [2021-01-06 19:33:22,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:22,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:22,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:22,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:22,052 INFO L87 Difference]: Start difference. First operand 296 states and 400 transitions. Second operand 4 states. [2021-01-06 19:33:22,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:22,160 INFO L93 Difference]: Finished difference Result 624 states and 885 transitions. [2021-01-06 19:33:22,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:22,160 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-01-06 19:33:22,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:22,163 INFO L225 Difference]: With dead ends: 624 [2021-01-06 19:33:22,163 INFO L226 Difference]: Without dead ends: 472 [2021-01-06 19:33:22,164 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 19:33:22,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-01-06 19:33:22,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 378. [2021-01-06 19:33:22,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2021-01-06 19:33:22,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 518 transitions. [2021-01-06 19:33:22,186 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 518 transitions. Word has length 159 [2021-01-06 19:33:22,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:22,187 INFO L481 AbstractCegarLoop]: Abstraction has 378 states and 518 transitions. [2021-01-06 19:33:22,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:22,187 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 518 transitions. [2021-01-06 19:33:22,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-01-06 19:33:22,189 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:22,189 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] [2021-01-06 19:33:22,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-06 19:33:22,190 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 19:33:22,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:22,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1509135504, now seen corresponding path program 1 times [2021-01-06 19:33:22,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:22,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029902620] [2021-01-06 19:33:22,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:22,321 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 19:33:22,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029902620] [2021-01-06 19:33:22,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:22,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:22,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256106907] [2021-01-06 19:33:22,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:22,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:22,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:22,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:22,323 INFO L87 Difference]: Start difference. First operand 378 states and 518 transitions. Second operand 3 states. [2021-01-06 19:33:22,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:22,369 INFO L93 Difference]: Finished difference Result 783 states and 1118 transitions. [2021-01-06 19:33:22,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:22,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2021-01-06 19:33:22,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:22,372 INFO L225 Difference]: With dead ends: 783 [2021-01-06 19:33:22,373 INFO L226 Difference]: Without dead ends: 587 [2021-01-06 19:33:22,373 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 19:33:22,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2021-01-06 19:33:22,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 448. [2021-01-06 19:33:22,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2021-01-06 19:33:22,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 617 transitions. [2021-01-06 19:33:22,400 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 617 transitions. Word has length 176 [2021-01-06 19:33:22,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:22,400 INFO L481 AbstractCegarLoop]: Abstraction has 448 states and 617 transitions. [2021-01-06 19:33:22,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:22,400 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 617 transitions. [2021-01-06 19:33:22,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-01-06 19:33:22,402 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:22,403 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 19:33:22,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-06 19:33:22,403 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 19:33:22,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:22,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1608082732, now seen corresponding path program 1 times [2021-01-06 19:33:22,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:22,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631673889] [2021-01-06 19:33:22,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:22,500 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 19:33:22,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631673889] [2021-01-06 19:33:22,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:22,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:22,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40706155] [2021-01-06 19:33:22,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:22,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:22,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:22,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:22,502 INFO L87 Difference]: Start difference. First operand 448 states and 617 transitions. Second operand 3 states. [2021-01-06 19:33:22,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:22,555 INFO L93 Difference]: Finished difference Result 932 states and 1331 transitions. [2021-01-06 19:33:22,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:22,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2021-01-06 19:33:22,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:22,559 INFO L225 Difference]: With dead ends: 932 [2021-01-06 19:33:22,559 INFO L226 Difference]: Without dead ends: 693 [2021-01-06 19:33:22,560 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 19:33:22,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-01-06 19:33:22,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 542. [2021-01-06 19:33:22,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2021-01-06 19:33:22,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 751 transitions. [2021-01-06 19:33:22,592 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 751 transitions. Word has length 177 [2021-01-06 19:33:22,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:22,593 INFO L481 AbstractCegarLoop]: Abstraction has 542 states and 751 transitions. [2021-01-06 19:33:22,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:22,593 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 751 transitions. [2021-01-06 19:33:22,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-01-06 19:33:22,595 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:22,595 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 19:33:22,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-06 19:33:22,596 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 19:33:22,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:22,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1599154325, now seen corresponding path program 1 times [2021-01-06 19:33:22,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:22,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002343874] [2021-01-06 19:33:22,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:22,730 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 19:33:22,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002343874] [2021-01-06 19:33:22,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:22,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:22,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759600928] [2021-01-06 19:33:22,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:22,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:22,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:22,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:22,732 INFO L87 Difference]: Start difference. First operand 542 states and 751 transitions. Second operand 3 states. [2021-01-06 19:33:22,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:22,803 INFO L93 Difference]: Finished difference Result 1108 states and 1589 transitions. [2021-01-06 19:33:22,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:22,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2021-01-06 19:33:22,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:22,808 INFO L225 Difference]: With dead ends: 1108 [2021-01-06 19:33:22,808 INFO L226 Difference]: Without dead ends: 805 [2021-01-06 19:33:22,809 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 19:33:22,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2021-01-06 19:33:22,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 628. [2021-01-06 19:33:22,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2021-01-06 19:33:22,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 879 transitions. [2021-01-06 19:33:22,850 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 879 transitions. Word has length 178 [2021-01-06 19:33:22,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:22,850 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 879 transitions. [2021-01-06 19:33:22,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:22,850 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 879 transitions. [2021-01-06 19:33:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-01-06 19:33:22,852 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:22,853 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 19:33:22,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-06 19:33:22,853 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 19:33:22,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:22,854 INFO L82 PathProgramCache]: Analyzing trace with hash 2021856151, now seen corresponding path program 1 times [2021-01-06 19:33:22,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:22,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447832224] [2021-01-06 19:33:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:22,991 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 19:33:22,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447832224] [2021-01-06 19:33:22,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150605582] [2021-01-06 19:33:22,991 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 19:33:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:23,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:33:23,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:23,551 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 19:33:23,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:33:23,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-01-06 19:33:23,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803731571] [2021-01-06 19:33:23,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:23,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:23,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:23,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:23,553 INFO L87 Difference]: Start difference. First operand 628 states and 879 transitions. Second operand 3 states. [2021-01-06 19:33:23,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:23,661 INFO L93 Difference]: Finished difference Result 1256 states and 1747 transitions. [2021-01-06 19:33:23,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:23,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2021-01-06 19:33:23,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:23,666 INFO L225 Difference]: With dead ends: 1256 [2021-01-06 19:33:23,666 INFO L226 Difference]: Without dead ends: 875 [2021-01-06 19:33:23,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 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 19:33:23,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2021-01-06 19:33:23,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 628. [2021-01-06 19:33:23,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2021-01-06 19:33:23,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 870 transitions. [2021-01-06 19:33:23,709 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 870 transitions. Word has length 178 [2021-01-06 19:33:23,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:23,710 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 870 transitions. [2021-01-06 19:33:23,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:23,710 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 870 transitions. [2021-01-06 19:33:23,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-01-06 19:33:23,712 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:23,713 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 19:33:23,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-01-06 19:33:23,919 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 19:33:23,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:23,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1934782051, now seen corresponding path program 1 times [2021-01-06 19:33:23,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:23,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859744487] [2021-01-06 19:33:23,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:24,018 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 19:33:24,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859744487] [2021-01-06 19:33:24,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479481258] [2021-01-06 19:33:24,018 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 19:33:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:24,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:33:24,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:24,379 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 19:33:24,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:33:24,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-01-06 19:33:24,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772505840] [2021-01-06 19:33:24,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:24,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:24,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:24,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:24,381 INFO L87 Difference]: Start difference. First operand 628 states and 870 transitions. Second operand 3 states. [2021-01-06 19:33:24,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:24,501 INFO L93 Difference]: Finished difference Result 1481 states and 2092 transitions. [2021-01-06 19:33:24,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:24,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2021-01-06 19:33:24,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:24,509 INFO L225 Difference]: With dead ends: 1481 [2021-01-06 19:33:24,509 INFO L226 Difference]: Without dead ends: 1100 [2021-01-06 19:33:24,511 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 19:33:24,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2021-01-06 19:33:24,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 628. [2021-01-06 19:33:24,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2021-01-06 19:33:24,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 869 transitions. [2021-01-06 19:33:24,557 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 869 transitions. Word has length 179 [2021-01-06 19:33:24,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:24,558 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 869 transitions. [2021-01-06 19:33:24,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:24,558 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 869 transitions. [2021-01-06 19:33:24,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-01-06 19:33:24,561 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:24,561 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 19:33:24,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:33:24,776 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 19:33:24,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:24,777 INFO L82 PathProgramCache]: Analyzing trace with hash 356758881, now seen corresponding path program 1 times [2021-01-06 19:33:24,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:24,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652891878] [2021-01-06 19:33:24,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:24,899 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 19:33:24,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652891878] [2021-01-06 19:33:24,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:24,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:24,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63723391] [2021-01-06 19:33:24,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:24,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:24,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:24,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:24,902 INFO L87 Difference]: Start difference. First operand 628 states and 869 transitions. Second operand 3 states. [2021-01-06 19:33:24,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:24,943 INFO L93 Difference]: Finished difference Result 1011 states and 1430 transitions. [2021-01-06 19:33:24,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:24,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2021-01-06 19:33:24,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:24,947 INFO L225 Difference]: With dead ends: 1011 [2021-01-06 19:33:24,948 INFO L226 Difference]: Without dead ends: 610 [2021-01-06 19:33:24,949 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 19:33:24,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2021-01-06 19:33:24,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2021-01-06 19:33:24,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2021-01-06 19:33:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 835 transitions. [2021-01-06 19:33:24,989 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 835 transitions. Word has length 180 [2021-01-06 19:33:24,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:24,989 INFO L481 AbstractCegarLoop]: Abstraction has 610 states and 835 transitions. [2021-01-06 19:33:24,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 835 transitions. [2021-01-06 19:33:24,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-01-06 19:33:24,992 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:24,992 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 19:33:24,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-01-06 19:33:24,993 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 19:33:24,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:24,993 INFO L82 PathProgramCache]: Analyzing trace with hash -970239779, now seen corresponding path program 1 times [2021-01-06 19:33:24,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:24,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140136861] [2021-01-06 19:33:24,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:25,119 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 19:33:25,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140136861] [2021-01-06 19:33:25,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245948471] [2021-01-06 19:33:25,120 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 19:33:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:25,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 9 conjunts are in the unsatisfiable core [2021-01-06 19:33:25,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:25,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 19:33:25,485 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 19:33:25,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:33:25,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-01-06 19:33:25,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513646977] [2021-01-06 19:33:25,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:33:25,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:25,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:33:25,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:33:25,488 INFO L87 Difference]: Start difference. First operand 610 states and 835 transitions. Second operand 5 states. [2021-01-06 19:33:25,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:25,705 INFO L93 Difference]: Finished difference Result 1581 states and 2220 transitions. [2021-01-06 19:33:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:33:25,706 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 180 [2021-01-06 19:33:25,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:25,714 INFO L225 Difference]: With dead ends: 1581 [2021-01-06 19:33:25,714 INFO L226 Difference]: Without dead ends: 1579 [2021-01-06 19:33:25,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-01-06 19:33:25,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2021-01-06 19:33:25,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 612. [2021-01-06 19:33:25,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2021-01-06 19:33:25,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 837 transitions. [2021-01-06 19:33:25,768 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 837 transitions. Word has length 180 [2021-01-06 19:33:25,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:25,769 INFO L481 AbstractCegarLoop]: Abstraction has 612 states and 837 transitions. [2021-01-06 19:33:25,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:33:25,769 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 837 transitions. [2021-01-06 19:33:25,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-01-06 19:33:25,771 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:25,771 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, 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] [2021-01-06 19:33:25,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-01-06 19:33:25,985 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 19:33:25,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:25,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1672767509, now seen corresponding path program 1 times [2021-01-06 19:33:25,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:25,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44087917] [2021-01-06 19:33:25,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:26,172 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 19:33:26,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44087917] [2021-01-06 19:33:26,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101128690] [2021-01-06 19:33:26,172 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 19:33:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:26,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 19:33:26,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:26,638 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 19:33:26,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:33:26,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-01-06 19:33:26,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088420093] [2021-01-06 19:33:26,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 19:33:26,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:26,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 19:33:26,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:33:26,641 INFO L87 Difference]: Start difference. First operand 612 states and 837 transitions. Second operand 11 states. [2021-01-06 19:33:27,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:27,522 INFO L93 Difference]: Finished difference Result 3671 states and 5205 transitions. [2021-01-06 19:33:27,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-06 19:33:27,523 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 183 [2021-01-06 19:33:27,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:27,538 INFO L225 Difference]: With dead ends: 3671 [2021-01-06 19:33:27,539 INFO L226 Difference]: Without dead ends: 3302 [2021-01-06 19:33:27,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 183 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 19:33:27,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3302 states. [2021-01-06 19:33:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3302 to 820. [2021-01-06 19:33:27,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 820 states. [2021-01-06 19:33:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1105 transitions. [2021-01-06 19:33:27,622 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1105 transitions. Word has length 183 [2021-01-06 19:33:27,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:27,622 INFO L481 AbstractCegarLoop]: Abstraction has 820 states and 1105 transitions. [2021-01-06 19:33:27,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 19:33:27,622 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1105 transitions. [2021-01-06 19:33:27,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-01-06 19:33:27,625 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:27,626 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] [2021-01-06 19:33:27,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:33:27,840 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 19:33:27,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:27,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1342336109, now seen corresponding path program 1 times [2021-01-06 19:33:27,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:27,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335104190] [2021-01-06 19:33:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:27,941 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 19:33:27,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335104190] [2021-01-06 19:33:27,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:27,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:27,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585510337] [2021-01-06 19:33:27,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:27,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:27,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:27,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:27,943 INFO L87 Difference]: Start difference. First operand 820 states and 1105 transitions. Second operand 3 states. [2021-01-06 19:33:28,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:28,113 INFO L93 Difference]: Finished difference Result 1825 states and 2496 transitions. [2021-01-06 19:33:28,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:28,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2021-01-06 19:33:28,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:28,120 INFO L225 Difference]: With dead ends: 1825 [2021-01-06 19:33:28,120 INFO L226 Difference]: Without dead ends: 1456 [2021-01-06 19:33:28,122 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 19:33:28,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2021-01-06 19:33:28,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 820. [2021-01-06 19:33:28,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 820 states. [2021-01-06 19:33:28,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1103 transitions. [2021-01-06 19:33:28,229 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1103 transitions. Word has length 183 [2021-01-06 19:33:28,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:28,230 INFO L481 AbstractCegarLoop]: Abstraction has 820 states and 1103 transitions. [2021-01-06 19:33:28,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:28,230 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1103 transitions. [2021-01-06 19:33:28,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-01-06 19:33:28,233 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:28,233 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] [2021-01-06 19:33:28,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-01-06 19:33:28,233 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 19:33:28,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:28,234 INFO L82 PathProgramCache]: Analyzing trace with hash -759019257, now seen corresponding path program 1 times [2021-01-06 19:33:28,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:28,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621403206] [2021-01-06 19:33:28,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:28,306 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 19:33:28,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621403206] [2021-01-06 19:33:28,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:28,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:28,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716916809] [2021-01-06 19:33:28,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:28,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:28,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:28,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:28,309 INFO L87 Difference]: Start difference. First operand 820 states and 1103 transitions. Second operand 3 states. [2021-01-06 19:33:28,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:28,401 INFO L93 Difference]: Finished difference Result 1372 states and 1859 transitions. [2021-01-06 19:33:28,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:28,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2021-01-06 19:33:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:28,406 INFO L225 Difference]: With dead ends: 1372 [2021-01-06 19:33:28,406 INFO L226 Difference]: Without dead ends: 673 [2021-01-06 19:33:28,407 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 19:33:28,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2021-01-06 19:33:28,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 672. [2021-01-06 19:33:28,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2021-01-06 19:33:28,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 882 transitions. [2021-01-06 19:33:28,465 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 882 transitions. Word has length 186 [2021-01-06 19:33:28,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:28,465 INFO L481 AbstractCegarLoop]: Abstraction has 672 states and 882 transitions. [2021-01-06 19:33:28,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:28,466 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 882 transitions. [2021-01-06 19:33:28,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-01-06 19:33:28,468 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:28,469 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] [2021-01-06 19:33:28,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-01-06 19:33:28,469 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 19:33:28,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:28,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1115601649, now seen corresponding path program 1 times [2021-01-06 19:33:28,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:28,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234972151] [2021-01-06 19:33:28,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:28,641 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 19:33:28,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234972151] [2021-01-06 19:33:28,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:28,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 19:33:28,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531613549] [2021-01-06 19:33:28,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 19:33:28,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:28,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 19:33:28,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:33:28,643 INFO L87 Difference]: Start difference. First operand 672 states and 882 transitions. Second operand 7 states. [2021-01-06 19:33:29,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:29,093 INFO L93 Difference]: Finished difference Result 1446 states and 1930 transitions. [2021-01-06 19:33:29,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:33:29,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2021-01-06 19:33:29,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:29,097 INFO L225 Difference]: With dead ends: 1446 [2021-01-06 19:33:29,098 INFO L226 Difference]: Without dead ends: 1088 [2021-01-06 19:33:29,099 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 19:33:29,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2021-01-06 19:33:29,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 784. [2021-01-06 19:33:29,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2021-01-06 19:33:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1022 transitions. [2021-01-06 19:33:29,187 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1022 transitions. Word has length 191 [2021-01-06 19:33:29,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:29,187 INFO L481 AbstractCegarLoop]: Abstraction has 784 states and 1022 transitions. [2021-01-06 19:33:29,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 19:33:29,187 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1022 transitions. [2021-01-06 19:33:29,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-01-06 19:33:29,190 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:29,190 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] [2021-01-06 19:33:29,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-01-06 19:33:29,191 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 19:33:29,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:29,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1484290453, now seen corresponding path program 1 times [2021-01-06 19:33:29,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:29,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924644084] [2021-01-06 19:33:29,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:29,340 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 19:33:29,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924644084] [2021-01-06 19:33:29,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:29,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 19:33:29,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976436892] [2021-01-06 19:33:29,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:33:29,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:29,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:33:29,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:33:29,342 INFO L87 Difference]: Start difference. First operand 784 states and 1022 transitions. Second operand 6 states. [2021-01-06 19:33:29,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:29,589 INFO L93 Difference]: Finished difference Result 2578 states and 3483 transitions. [2021-01-06 19:33:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:33:29,589 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 197 [2021-01-06 19:33:29,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:29,595 INFO L225 Difference]: With dead ends: 2578 [2021-01-06 19:33:29,596 INFO L226 Difference]: Without dead ends: 2102 [2021-01-06 19:33:29,598 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 19:33:29,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2021-01-06 19:33:29,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 861. [2021-01-06 19:33:29,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2021-01-06 19:33:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1120 transitions. [2021-01-06 19:33:29,700 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1120 transitions. Word has length 197 [2021-01-06 19:33:29,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:29,701 INFO L481 AbstractCegarLoop]: Abstraction has 861 states and 1120 transitions. [2021-01-06 19:33:29,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:33:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1120 transitions. [2021-01-06 19:33:29,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-01-06 19:33:29,705 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:29,705 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] [2021-01-06 19:33:29,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-01-06 19:33:29,706 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 19:33:29,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:29,711 INFO L82 PathProgramCache]: Analyzing trace with hash -725967573, now seen corresponding path program 1 times [2021-01-06 19:33:29,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:29,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252676449] [2021-01-06 19:33:29,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:30,087 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 19:33:30,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252676449] [2021-01-06 19:33:30,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:30,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-06 19:33:30,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586595309] [2021-01-06 19:33:30,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 19:33:30,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:30,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 19:33:30,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-01-06 19:33:30,092 INFO L87 Difference]: Start difference. First operand 861 states and 1120 transitions. Second operand 10 states. [2021-01-06 19:33:31,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:31,174 INFO L93 Difference]: Finished difference Result 2457 states and 3237 transitions. [2021-01-06 19:33:31,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 19:33:31,175 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 197 [2021-01-06 19:33:31,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:31,179 INFO L225 Difference]: With dead ends: 2457 [2021-01-06 19:33:31,179 INFO L226 Difference]: Without dead ends: 1907 [2021-01-06 19:33:31,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2021-01-06 19:33:31,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2021-01-06 19:33:31,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 856. [2021-01-06 19:33:31,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 856 states. [2021-01-06 19:33:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1112 transitions. [2021-01-06 19:33:31,283 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1112 transitions. Word has length 197 [2021-01-06 19:33:31,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:31,283 INFO L481 AbstractCegarLoop]: Abstraction has 856 states and 1112 transitions. [2021-01-06 19:33:31,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 19:33:31,283 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1112 transitions. [2021-01-06 19:33:31,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-01-06 19:33:31,286 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:31,287 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] [2021-01-06 19:33:31,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-01-06 19:33:31,294 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 19:33:31,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:31,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1846866791, now seen corresponding path program 1 times [2021-01-06 19:33:31,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:31,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743837721] [2021-01-06 19:33:31,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:31,591 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 19:33:31,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743837721] [2021-01-06 19:33:31,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:31,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-06 19:33:31,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569003940] [2021-01-06 19:33:31,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 19:33:31,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:31,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 19:33:31,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-01-06 19:33:31,593 INFO L87 Difference]: Start difference. First operand 856 states and 1112 transitions. Second operand 10 states. [2021-01-06 19:33:32,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:32,610 INFO L93 Difference]: Finished difference Result 2441 states and 3216 transitions. [2021-01-06 19:33:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 19:33:32,611 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 197 [2021-01-06 19:33:32,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:32,615 INFO L225 Difference]: With dead ends: 2441 [2021-01-06 19:33:32,616 INFO L226 Difference]: Without dead ends: 1891 [2021-01-06 19:33:32,617 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 19:33:32,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2021-01-06 19:33:32,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 844. [2021-01-06 19:33:32,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 844 states. [2021-01-06 19:33:32,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1097 transitions. [2021-01-06 19:33:32,723 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1097 transitions. Word has length 197 [2021-01-06 19:33:32,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:32,723 INFO L481 AbstractCegarLoop]: Abstraction has 844 states and 1097 transitions. [2021-01-06 19:33:32,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 19:33:32,724 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1097 transitions. [2021-01-06 19:33:32,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-01-06 19:33:32,726 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:32,727 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] [2021-01-06 19:33:32,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-01-06 19:33:32,727 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 19:33:32,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:32,728 INFO L82 PathProgramCache]: Analyzing trace with hash 2030555812, now seen corresponding path program 1 times [2021-01-06 19:33:32,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:32,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467704819] [2021-01-06 19:33:32,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:32,837 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 19:33:32,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467704819] [2021-01-06 19:33:32,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:32,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:32,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558901199] [2021-01-06 19:33:32,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:32,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:32,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:32,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:32,840 INFO L87 Difference]: Start difference. First operand 844 states and 1097 transitions. Second operand 4 states. [2021-01-06 19:33:33,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:33,094 INFO L93 Difference]: Finished difference Result 1611 states and 2121 transitions. [2021-01-06 19:33:33,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:33,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 207 [2021-01-06 19:33:33,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:33,097 INFO L225 Difference]: With dead ends: 1611 [2021-01-06 19:33:33,097 INFO L226 Difference]: Without dead ends: 1067 [2021-01-06 19:33:33,098 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 19:33:33,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2021-01-06 19:33:33,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 818. [2021-01-06 19:33:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2021-01-06 19:33:33,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1045 transitions. [2021-01-06 19:33:33,181 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1045 transitions. Word has length 207 [2021-01-06 19:33:33,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:33,182 INFO L481 AbstractCegarLoop]: Abstraction has 818 states and 1045 transitions. [2021-01-06 19:33:33,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:33,182 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1045 transitions. [2021-01-06 19:33:33,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-01-06 19:33:33,184 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:33,184 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] [2021-01-06 19:33:33,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-01-06 19:33:33,185 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 19:33:33,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:33,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1428912634, now seen corresponding path program 1 times [2021-01-06 19:33:33,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:33,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597648546] [2021-01-06 19:33:33,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:33,532 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 2 proven. 39 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:33,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597648546] [2021-01-06 19:33:33,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447127332] [2021-01-06 19:33:33,533 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 19:33:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:33,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:33:33,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:34,136 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:33:34,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:33:34,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2021-01-06 19:33:34,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109273074] [2021-01-06 19:33:34,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 19:33:34,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:34,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 19:33:34,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2021-01-06 19:33:34,139 INFO L87 Difference]: Start difference. First operand 818 states and 1045 transitions. Second operand 19 states. [2021-01-06 19:34:16,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:16,202 INFO L93 Difference]: Finished difference Result 19641 states and 26164 transitions. [2021-01-06 19:34:16,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 608 states. [2021-01-06 19:34:16,203 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 231 [2021-01-06 19:34:16,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:16,254 INFO L225 Difference]: With dead ends: 19641 [2021-01-06 19:34:16,255 INFO L226 Difference]: Without dead ends: 19091 [2021-01-06 19:34:16,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 622 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180787 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=32021, Invalid=356731, Unknown=0, NotChecked=0, Total=388752 [2021-01-06 19:34:16,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19091 states. [2021-01-06 19:34:16,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19091 to 2273. [2021-01-06 19:34:16,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2273 states. [2021-01-06 19:34:16,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 2891 transitions. [2021-01-06 19:34:16,861 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 2891 transitions. Word has length 231 [2021-01-06 19:34:16,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:16,862 INFO L481 AbstractCegarLoop]: Abstraction has 2273 states and 2891 transitions. [2021-01-06 19:34:16,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 19:34:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 2891 transitions. [2021-01-06 19:34:16,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-01-06 19:34:16,867 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:16,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:17,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-01-06 19:34:17,083 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 19:34:17,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:17,084 INFO L82 PathProgramCache]: Analyzing trace with hash 232639546, now seen corresponding path program 1 times [2021-01-06 19:34:17,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:17,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058791509] [2021-01-06 19:34:17,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-01-06 19:34:17,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058791509] [2021-01-06 19:34:17,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:17,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:34:17,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602670766] [2021-01-06 19:34:17,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:34:17,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:17,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:34:17,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:17,349 INFO L87 Difference]: Start difference. First operand 2273 states and 2891 transitions. Second operand 5 states. [2021-01-06 19:34:17,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:17,746 INFO L93 Difference]: Finished difference Result 4219 states and 5388 transitions. [2021-01-06 19:34:17,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:34:17,747 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 231 [2021-01-06 19:34:17,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:17,755 INFO L225 Difference]: With dead ends: 4219 [2021-01-06 19:34:17,755 INFO L226 Difference]: Without dead ends: 2273 [2021-01-06 19:34:17,762 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 19:34:17,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2021-01-06 19:34:18,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2273. [2021-01-06 19:34:18,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2273 states. [2021-01-06 19:34:18,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 2887 transitions. [2021-01-06 19:34:18,027 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 2887 transitions. Word has length 231 [2021-01-06 19:34:18,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:18,027 INFO L481 AbstractCegarLoop]: Abstraction has 2273 states and 2887 transitions. [2021-01-06 19:34:18,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:34:18,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 2887 transitions. [2021-01-06 19:34:18,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-01-06 19:34:18,032 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:18,033 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] [2021-01-06 19:34:18,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-01-06 19:34:18,033 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 19:34:18,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:18,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1856340548, now seen corresponding path program 1 times [2021-01-06 19:34:18,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:18,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971743674] [2021-01-06 19:34:18,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:18,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971743674] [2021-01-06 19:34:18,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054167154] [2021-01-06 19:34:18,670 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 19:34:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:18,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:34:18,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:19,430 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 3 proven. 32 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:19,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:34:19,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2021-01-06 19:34:19,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229548846] [2021-01-06 19:34:19,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 19:34:19,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:19,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 19:34:19,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2021-01-06 19:34:19,432 INFO L87 Difference]: Start difference. First operand 2273 states and 2887 transitions. Second operand 19 states. [2021-01-06 19:34:31,651 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-01-06 19:34:54,964 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2021-01-06 19:34:55,247 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-01-06 19:34:55,585 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2021-01-06 19:34:58,714 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-01-06 19:34:59,078 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2021-01-06 19:35:00,815 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2021-01-06 19:35:00,984 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-01-06 19:35:02,455 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-01-06 19:35:04,371 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2021-01-06 19:35:04,950 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-01-06 19:35:06,755 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2021-01-06 19:35:06,966 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2021-01-06 19:35:07,335 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-01-06 19:35:07,508 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2021-01-06 19:35:10,039 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2021-01-06 19:35:10,455 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2021-01-06 19:35:10,770 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2021-01-06 19:35:11,441 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2021-01-06 19:35:11,642 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2021-01-06 19:35:11,858 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-01-06 19:35:12,030 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2021-01-06 19:35:13,896 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2021-01-06 19:35:14,079 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2021-01-06 19:35:14,592 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-01-06 19:35:21,351 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2021-01-06 19:36:04,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:04,274 INFO L93 Difference]: Finished difference Result 36035 states and 46366 transitions. [2021-01-06 19:36:04,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 991 states. [2021-01-06 19:36:04,276 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 232 [2021-01-06 19:36:04,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:04,353 INFO L225 Difference]: With dead ends: 36035 [2021-01-06 19:36:04,354 INFO L226 Difference]: Without dead ends: 34163 [2021-01-06 19:36:04,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1233 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 1005 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491064 ImplicationChecksByTransitivity, 83.7s TimeCoverageRelationStatistics Valid=56416, Invalid=956626, Unknown=0, NotChecked=0, Total=1013042 [2021-01-06 19:36:04,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34163 states. [2021-01-06 19:36:05,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34163 to 4807. [2021-01-06 19:36:05,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4807 states. [2021-01-06 19:36:05,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4807 states to 4807 states and 6138 transitions. [2021-01-06 19:36:05,748 INFO L78 Accepts]: Start accepts. Automaton has 4807 states and 6138 transitions. Word has length 232 [2021-01-06 19:36:05,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:05,748 INFO L481 AbstractCegarLoop]: Abstraction has 4807 states and 6138 transitions. [2021-01-06 19:36:05,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 19:36:05,749 INFO L276 IsEmpty]: Start isEmpty. Operand 4807 states and 6138 transitions. [2021-01-06 19:36:05,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-01-06 19:36:05,757 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:05,757 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] [2021-01-06 19:36:05,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-01-06 19:36:05,974 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 19:36:05,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:05,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1725151484, now seen corresponding path program 1 times [2021-01-06 19:36:05,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:05,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302381513] [2021-01-06 19:36:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-01-06 19:36:06,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302381513] [2021-01-06 19:36:06,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:06,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:06,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358671898] [2021-01-06 19:36:06,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:36:06,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:06,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:36:06,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:06,214 INFO L87 Difference]: Start difference. First operand 4807 states and 6138 transitions. Second operand 5 states. [2021-01-06 19:36:07,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:07,199 INFO L93 Difference]: Finished difference Result 9289 states and 11884 transitions. [2021-01-06 19:36:07,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:36:07,201 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 232 [2021-01-06 19:36:07,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:07,212 INFO L225 Difference]: With dead ends: 9289 [2021-01-06 19:36:07,213 INFO L226 Difference]: Without dead ends: 4825 [2021-01-06 19:36:07,219 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 19:36:07,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4825 states. [2021-01-06 19:36:07,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4825 to 4819. [2021-01-06 19:36:07,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4819 states. [2021-01-06 19:36:07,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4819 states to 4819 states and 6138 transitions. [2021-01-06 19:36:07,907 INFO L78 Accepts]: Start accepts. Automaton has 4819 states and 6138 transitions. Word has length 232 [2021-01-06 19:36:07,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:07,907 INFO L481 AbstractCegarLoop]: Abstraction has 4819 states and 6138 transitions. [2021-01-06 19:36:07,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:36:07,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4819 states and 6138 transitions. [2021-01-06 19:36:07,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-01-06 19:36:07,916 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:07,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:07,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-01-06 19:36:07,917 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 19:36:07,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:07,917 INFO L82 PathProgramCache]: Analyzing trace with hash -138581744, now seen corresponding path program 1 times [2021-01-06 19:36:07,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:07,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016398154] [2021-01-06 19:36:07,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:08,216 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-01-06 19:36:08,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016398154] [2021-01-06 19:36:08,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:08,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:36:08,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097049940] [2021-01-06 19:36:08,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:36:08,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:08,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:36:08,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:36:08,222 INFO L87 Difference]: Start difference. First operand 4819 states and 6138 transitions. Second operand 3 states. [2021-01-06 19:36:08,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:08,851 INFO L93 Difference]: Finished difference Result 9543 states and 12138 transitions. [2021-01-06 19:36:08,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:36:08,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2021-01-06 19:36:08,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:08,863 INFO L225 Difference]: With dead ends: 9543 [2021-01-06 19:36:08,864 INFO L226 Difference]: Without dead ends: 5079 [2021-01-06 19:36:08,871 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 19:36:08,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5079 states. [2021-01-06 19:36:09,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5079 to 4779. [2021-01-06 19:36:09,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4779 states. [2021-01-06 19:36:09,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4779 states to 4779 states and 5898 transitions. [2021-01-06 19:36:09,547 INFO L78 Accepts]: Start accepts. Automaton has 4779 states and 5898 transitions. Word has length 232 [2021-01-06 19:36:09,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:09,548 INFO L481 AbstractCegarLoop]: Abstraction has 4779 states and 5898 transitions. [2021-01-06 19:36:09,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:36:09,548 INFO L276 IsEmpty]: Start isEmpty. Operand 4779 states and 5898 transitions. [2021-01-06 19:36:09,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-01-06 19:36:09,557 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:09,558 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:09,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-01-06 19:36:09,558 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 19:36:09,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:09,559 INFO L82 PathProgramCache]: Analyzing trace with hash 646207064, now seen corresponding path program 1 times [2021-01-06 19:36:09,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:09,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338659544] [2021-01-06 19:36:09,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:09,979 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 2 proven. 39 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:09,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338659544] [2021-01-06 19:36:09,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051341186] [2021-01-06 19:36:09,980 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 19:36:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:10,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 30 conjunts are in the unsatisfiable core [2021-01-06 19:36:10,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:36:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 33 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-01-06 19:36:11,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:36:11,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2021-01-06 19:36:11,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536436955] [2021-01-06 19:36:11,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 19:36:11,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:11,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 19:36:11,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2021-01-06 19:36:11,073 INFO L87 Difference]: Start difference. First operand 4779 states and 5898 transitions. Second operand 20 states. [2021-01-06 19:36:35,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:35,928 INFO L93 Difference]: Finished difference Result 30154 states and 37719 transitions. [2021-01-06 19:36:35,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2021-01-06 19:36:35,930 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 238 [2021-01-06 19:36:35,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:35,956 INFO L225 Difference]: With dead ends: 30154 [2021-01-06 19:36:35,956 INFO L226 Difference]: Without dead ends: 25885 [2021-01-06 19:36:35,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8715 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=3426, Invalid=21380, Unknown=0, NotChecked=0, Total=24806 [2021-01-06 19:36:35,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25885 states. [2021-01-06 19:36:36,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25885 to 5151. [2021-01-06 19:36:36,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5151 states. [2021-01-06 19:36:36,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 6348 transitions. [2021-01-06 19:36:36,880 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 6348 transitions. Word has length 238 [2021-01-06 19:36:36,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:36,881 INFO L481 AbstractCegarLoop]: Abstraction has 5151 states and 6348 transitions. [2021-01-06 19:36:36,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 19:36:36,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 6348 transitions. [2021-01-06 19:36:36,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-01-06 19:36:36,890 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:36,890 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:37,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:37,106 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 19:36:37,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:37,107 INFO L82 PathProgramCache]: Analyzing trace with hash 658006449, now seen corresponding path program 1 times [2021-01-06 19:36:37,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:37,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126884679] [2021-01-06 19:36:37,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-01-06 19:36:37,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126884679] [2021-01-06 19:36:37,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:37,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:36:37,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840677344] [2021-01-06 19:36:37,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:36:37,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:37,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:36:37,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:36:37,191 INFO L87 Difference]: Start difference. First operand 5151 states and 6348 transitions. Second operand 3 states. [2021-01-06 19:36:38,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:38,040 INFO L93 Difference]: Finished difference Result 9920 states and 12226 transitions. [2021-01-06 19:36:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:36:38,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2021-01-06 19:36:38,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:38,056 INFO L225 Difference]: With dead ends: 9920 [2021-01-06 19:36:38,056 INFO L226 Difference]: Without dead ends: 4782 [2021-01-06 19:36:38,062 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 19:36:38,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4782 states. [2021-01-06 19:36:38,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4782 to 4782. [2021-01-06 19:36:38,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4782 states. [2021-01-06 19:36:38,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 5884 transitions. [2021-01-06 19:36:38,633 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 5884 transitions. Word has length 241 [2021-01-06 19:36:38,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:38,633 INFO L481 AbstractCegarLoop]: Abstraction has 4782 states and 5884 transitions. [2021-01-06 19:36:38,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:36:38,633 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 5884 transitions. [2021-01-06 19:36:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-01-06 19:36:38,638 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:38,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:38,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-01-06 19:36:38,639 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 19:36:38,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:38,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1596548256, now seen corresponding path program 1 times [2021-01-06 19:36:38,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:38,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057761823] [2021-01-06 19:36:38,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:38,874 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-01-06 19:36:38,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057761823] [2021-01-06 19:36:38,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:38,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:38,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115267061] [2021-01-06 19:36:38,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:36:38,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:38,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:36:38,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:38,877 INFO L87 Difference]: Start difference. First operand 4782 states and 5884 transitions. Second operand 5 states. [2021-01-06 19:36:39,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:39,720 INFO L93 Difference]: Finished difference Result 9175 states and 11329 transitions. [2021-01-06 19:36:39,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:36:39,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 244 [2021-01-06 19:36:39,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:39,728 INFO L225 Difference]: With dead ends: 9175 [2021-01-06 19:36:39,728 INFO L226 Difference]: Without dead ends: 4788 [2021-01-06 19:36:39,733 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 19:36:39,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4788 states. [2021-01-06 19:36:40,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4788 to 4770. [2021-01-06 19:36:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4770 states. [2021-01-06 19:36:40,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4770 states to 4770 states and 5866 transitions. [2021-01-06 19:36:40,402 INFO L78 Accepts]: Start accepts. Automaton has 4770 states and 5866 transitions. Word has length 244 [2021-01-06 19:36:40,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:40,402 INFO L481 AbstractCegarLoop]: Abstraction has 4770 states and 5866 transitions. [2021-01-06 19:36:40,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:36:40,402 INFO L276 IsEmpty]: Start isEmpty. Operand 4770 states and 5866 transitions. [2021-01-06 19:36:40,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-01-06 19:36:40,408 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:40,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:40,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-01-06 19:36:40,408 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 19:36:40,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:40,409 INFO L82 PathProgramCache]: Analyzing trace with hash 212350267, now seen corresponding path program 1 times [2021-01-06 19:36:40,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:40,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129746967] [2021-01-06 19:36:40,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:40,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129746967] [2021-01-06 19:36:40,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955768148] [2021-01-06 19:36:40,806 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 19:36:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:41,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:36:41,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:36:41,983 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:41,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:36:41,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 9 [2021-01-06 19:36:41,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450221904] [2021-01-06 19:36:41,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 19:36:41,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:41,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 19:36:41,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:36:41,985 INFO L87 Difference]: Start difference. First operand 4770 states and 5866 transitions. Second operand 9 states. [2021-01-06 19:36:47,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:47,419 INFO L93 Difference]: Finished difference Result 26158 states and 32582 transitions. [2021-01-06 19:36:47,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-06 19:36:47,422 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 245 [2021-01-06 19:36:47,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:47,445 INFO L225 Difference]: With dead ends: 26158 [2021-01-06 19:36:47,445 INFO L226 Difference]: Without dead ends: 21919 [2021-01-06 19:36:47,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=340, Invalid=1382, Unknown=0, NotChecked=0, Total=1722 [2021-01-06 19:36:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21919 states. [2021-01-06 19:36:49,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21919 to 12438. [2021-01-06 19:36:49,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12438 states. [2021-01-06 19:36:49,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12438 states to 12438 states and 15321 transitions. [2021-01-06 19:36:49,309 INFO L78 Accepts]: Start accepts. Automaton has 12438 states and 15321 transitions. Word has length 245 [2021-01-06 19:36:49,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:49,309 INFO L481 AbstractCegarLoop]: Abstraction has 12438 states and 15321 transitions. [2021-01-06 19:36:49,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 19:36:49,310 INFO L276 IsEmpty]: Start isEmpty. Operand 12438 states and 15321 transitions. [2021-01-06 19:36:49,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-01-06 19:36:49,323 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:49,323 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:49,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:49,525 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 19:36:49,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:49,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1819429307, now seen corresponding path program 1 times [2021-01-06 19:36:49,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:49,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638225113] [2021-01-06 19:36:49,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:49,832 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 25 [2021-01-06 19:36:50,210 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:50,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638225113] [2021-01-06 19:36:50,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788118264] [2021-01-06 19:36:50,211 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 19:36:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:50,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 30 conjunts are in the unsatisfiable core [2021-01-06 19:36:50,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:36:51,601 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 27 proven. 17 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-01-06 19:36:51,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:36:51,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2021-01-06 19:36:51,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632910763] [2021-01-06 19:36:51,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 19:36:51,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:51,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 19:36:51,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2021-01-06 19:36:51,603 INFO L87 Difference]: Start difference. First operand 12438 states and 15321 transitions. Second operand 20 states. [2021-01-06 19:36:52,319 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 29 [2021-01-06 19:36:52,657 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-01-06 19:36:53,488 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2021-01-06 19:36:56,683 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2021-01-06 19:36:57,299 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39