/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.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 19:33:41,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 19:33:41,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 19:33:41,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 19:33:41,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 19:33:41,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 19:33:41,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 19:33:41,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 19:33:41,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 19:33:41,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 19:33:41,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 19:33:41,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 19:33:41,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 19:33:41,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 19:33:41,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 19:33:41,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 19:33:41,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 19:33:41,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 19:33:41,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 19:33:41,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 19:33:41,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 19:33:41,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 19:33:41,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 19:33:41,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 19:33:41,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 19:33:41,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 19:33:41,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 19:33:41,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 19:33:41,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 19:33:41,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 19:33:41,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 19:33:41,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 19:33:41,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 19:33:41,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 19:33:41,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 19:33:41,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 19:33:41,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 19:33:41,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 19:33:41,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 19:33:41,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 19:33:41,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 19:33:41,321 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 19:33:41,348 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 19:33:41,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 19:33:41,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 19:33:41,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 19:33:41,350 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 19:33:41,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 19:33:41,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 19:33:41,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 19:33:41,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 19:33:41,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 19:33:41,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 19:33:41,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 19:33:41,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 19:33:41,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 19:33:41,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 19:33:41,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 19:33:41,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 19:33:41,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 19:33:41,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 19:33:41,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 19:33:41,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 19:33:41,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 19:33:41,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 19:33:41,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 19:33:41,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 19:33:41,357 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 19:33:41,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 19:33:41,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 19:33:41,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 19:33:41,766 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 19:33:41,767 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 19:33:41,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c [2021-01-06 19:33:41,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fd6d8bac4/e6a6470f9637444eaceda0a3fe05d062/FLAGf62bda7b3 [2021-01-06 19:33:42,505 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 19:33:42,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c [2021-01-06 19:33:42,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fd6d8bac4/e6a6470f9637444eaceda0a3fe05d062/FLAGf62bda7b3 [2021-01-06 19:33:42,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fd6d8bac4/e6a6470f9637444eaceda0a3fe05d062 [2021-01-06 19:33:42,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 19:33:42,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 19:33:42,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 19:33:42,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 19:33:42,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 19:33:42,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:33:42" (1/1) ... [2021-01-06 19:33:42,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac4a5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:42, skipping insertion in model container [2021-01-06 19:33:42,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:33:42" (1/1) ... [2021-01-06 19:33:42,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 19:33:42,923 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[~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 19:33:43,202 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.2.ufo.UNBOUNDED.pals.c[11921,11934] [2021-01-06 19:33:43,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:33:43,217 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[~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 19:33:43,295 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.2.ufo.UNBOUNDED.pals.c[11921,11934] [2021-01-06 19:33:43,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:33:43,320 INFO L208 MainTranslator]: Completed translation [2021-01-06 19:33:43,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:43 WrapperNode [2021-01-06 19:33:43,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 19:33:43,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 19:33:43,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 19:33:43,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 19:33:43,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:43" (1/1) ... [2021-01-06 19:33:43,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:43" (1/1) ... [2021-01-06 19:33:43,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 19:33:43,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 19:33:43,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 19:33:43,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 19:33:43,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:43" (1/1) ... [2021-01-06 19:33:43,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:43" (1/1) ... [2021-01-06 19:33:43,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:43" (1/1) ... [2021-01-06 19:33:43,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:43" (1/1) ... [2021-01-06 19:33:43,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:43" (1/1) ... [2021-01-06 19:33:43,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:43" (1/1) ... [2021-01-06 19:33:43,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:43" (1/1) ... [2021-01-06 19:33:43,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 19:33:43,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 19:33:43,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 19:33:43,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 19:33:43,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:43" (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 19:33:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 19:33:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 19:33:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 19:33:43,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 19:33:45,499 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 19:33:45,500 INFO L299 CfgBuilder]: Removed 183 assume(true) statements. [2021-01-06 19:33:45,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:33:45 BoogieIcfgContainer [2021-01-06 19:33:45,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 19:33:45,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 19:33:45,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 19:33:45,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 19:33:45,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 07:33:42" (1/3) ... [2021-01-06 19:33:45,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5545d27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:33:45, skipping insertion in model container [2021-01-06 19:33:45,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:33:43" (2/3) ... [2021-01-06 19:33:45,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5545d27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:33:45, skipping insertion in model container [2021-01-06 19:33:45,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:33:45" (3/3) ... [2021-01-06 19:33:45,511 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c [2021-01-06 19:33:45,518 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 19:33:45,524 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 37 error locations. [2021-01-06 19:33:45,544 INFO L253 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2021-01-06 19:33:45,577 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 19:33:45,577 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 19:33:45,578 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 19:33:45,578 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 19:33:45,578 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 19:33:45,578 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 19:33:45,578 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 19:33:45,578 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 19:33:45,612 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states. [2021-01-06 19:33:45,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 19:33:45,620 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:45,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:45,622 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 19:33:45,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:45,628 INFO L82 PathProgramCache]: Analyzing trace with hash 595705480, now seen corresponding path program 1 times [2021-01-06 19:33:45,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:45,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205077200] [2021-01-06 19:33:45,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:45,848 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 19:33:45,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205077200] [2021-01-06 19:33:45,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:45,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:45,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125553861] [2021-01-06 19:33:45,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:45,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:45,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:45,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:45,876 INFO L87 Difference]: Start difference. First operand 520 states. Second operand 3 states. [2021-01-06 19:33:46,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:46,255 INFO L93 Difference]: Finished difference Result 1242 states and 2054 transitions. [2021-01-06 19:33:46,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:46,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-01-06 19:33:46,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:46,303 INFO L225 Difference]: With dead ends: 1242 [2021-01-06 19:33:46,303 INFO L226 Difference]: Without dead ends: 724 [2021-01-06 19:33:46,315 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 19:33:46,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-01-06 19:33:46,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 456. [2021-01-06 19:33:46,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2021-01-06 19:33:46,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 710 transitions. [2021-01-06 19:33:46,430 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 710 transitions. Word has length 9 [2021-01-06 19:33:46,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:46,431 INFO L481 AbstractCegarLoop]: Abstraction has 456 states and 710 transitions. [2021-01-06 19:33:46,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:46,431 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 710 transitions. [2021-01-06 19:33:46,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 19:33:46,433 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:46,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:46,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 19:33:46,434 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 19:33:46,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:46,435 INFO L82 PathProgramCache]: Analyzing trace with hash -503954138, now seen corresponding path program 1 times [2021-01-06 19:33:46,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:46,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014377141] [2021-01-06 19:33:46,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:46,497 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 19:33:46,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014377141] [2021-01-06 19:33:46,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:46,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:46,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667277303] [2021-01-06 19:33:46,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:46,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:46,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:46,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:46,501 INFO L87 Difference]: Start difference. First operand 456 states and 710 transitions. Second operand 3 states. [2021-01-06 19:33:46,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:46,587 INFO L93 Difference]: Finished difference Result 1128 states and 1740 transitions. [2021-01-06 19:33:46,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:46,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-01-06 19:33:46,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:46,592 INFO L225 Difference]: With dead ends: 1128 [2021-01-06 19:33:46,592 INFO L226 Difference]: Without dead ends: 674 [2021-01-06 19:33:46,594 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 19:33:46,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2021-01-06 19:33:46,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 423. [2021-01-06 19:33:46,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2021-01-06 19:33:46,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 652 transitions. [2021-01-06 19:33:46,614 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 652 transitions. Word has length 10 [2021-01-06 19:33:46,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:46,614 INFO L481 AbstractCegarLoop]: Abstraction has 423 states and 652 transitions. [2021-01-06 19:33:46,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 652 transitions. [2021-01-06 19:33:46,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 19:33:46,616 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:46,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:46,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 19:33:46,617 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 19:33:46,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:46,618 INFO L82 PathProgramCache]: Analyzing trace with hash -248055967, now seen corresponding path program 1 times [2021-01-06 19:33:46,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:46,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822528316] [2021-01-06 19:33:46,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:46,675 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 19:33:46,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822528316] [2021-01-06 19:33:46,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:46,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:46,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662269505] [2021-01-06 19:33:46,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:46,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:46,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:46,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:46,679 INFO L87 Difference]: Start difference. First operand 423 states and 652 transitions. Second operand 3 states. [2021-01-06 19:33:46,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:46,746 INFO L93 Difference]: Finished difference Result 1247 states and 1927 transitions. [2021-01-06 19:33:46,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:46,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2021-01-06 19:33:46,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:46,752 INFO L225 Difference]: With dead ends: 1247 [2021-01-06 19:33:46,752 INFO L226 Difference]: Without dead ends: 834 [2021-01-06 19:33:46,754 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 19:33:46,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2021-01-06 19:33:46,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 427. [2021-01-06 19:33:46,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2021-01-06 19:33:46,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 656 transitions. [2021-01-06 19:33:46,771 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 656 transitions. Word has length 14 [2021-01-06 19:33:46,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:46,772 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 656 transitions. [2021-01-06 19:33:46,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:46,772 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 656 transitions. [2021-01-06 19:33:46,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 19:33:46,773 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:46,774 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 19:33:46,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 19:33:46,774 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 19:33:46,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:46,775 INFO L82 PathProgramCache]: Analyzing trace with hash -35486156, now seen corresponding path program 1 times [2021-01-06 19:33:46,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:46,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035809216] [2021-01-06 19:33:46,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:46,838 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 19:33:46,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035809216] [2021-01-06 19:33:46,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:46,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:46,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284842156] [2021-01-06 19:33:46,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:46,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:46,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:46,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:46,842 INFO L87 Difference]: Start difference. First operand 427 states and 656 transitions. Second operand 4 states. [2021-01-06 19:33:46,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:46,939 INFO L93 Difference]: Finished difference Result 1574 states and 2397 transitions. [2021-01-06 19:33:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:46,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2021-01-06 19:33:46,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:46,946 INFO L225 Difference]: With dead ends: 1574 [2021-01-06 19:33:46,947 INFO L226 Difference]: Without dead ends: 1161 [2021-01-06 19:33:46,948 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 19:33:46,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2021-01-06 19:33:46,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 429. [2021-01-06 19:33:46,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2021-01-06 19:33:46,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 658 transitions. [2021-01-06 19:33:46,968 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 658 transitions. Word has length 18 [2021-01-06 19:33:46,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:46,968 INFO L481 AbstractCegarLoop]: Abstraction has 429 states and 658 transitions. [2021-01-06 19:33:46,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:46,968 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 658 transitions. [2021-01-06 19:33:46,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 19:33:46,969 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:46,970 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 19:33:46,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 19:33:46,970 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 19:33:46,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:46,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1707916525, now seen corresponding path program 1 times [2021-01-06 19:33:46,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:46,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548670799] [2021-01-06 19:33:46,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:47,032 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 19:33:47,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548670799] [2021-01-06 19:33:47,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:47,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:47,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449165278] [2021-01-06 19:33:47,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:47,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:47,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:47,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:47,038 INFO L87 Difference]: Start difference. First operand 429 states and 658 transitions. Second operand 4 states. [2021-01-06 19:33:47,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:47,099 INFO L93 Difference]: Finished difference Result 671 states and 1022 transitions. [2021-01-06 19:33:47,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:47,102 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2021-01-06 19:33:47,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:47,105 INFO L225 Difference]: With dead ends: 671 [2021-01-06 19:33:47,106 INFO L226 Difference]: Without dead ends: 427 [2021-01-06 19:33:47,107 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 19:33:47,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-01-06 19:33:47,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2021-01-06 19:33:47,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2021-01-06 19:33:47,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 651 transitions. [2021-01-06 19:33:47,152 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 651 transitions. Word has length 19 [2021-01-06 19:33:47,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:47,153 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 651 transitions. [2021-01-06 19:33:47,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:47,153 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 651 transitions. [2021-01-06 19:33:47,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 19:33:47,157 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:47,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:47,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 19:33:47,158 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 19:33:47,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:47,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1967275947, now seen corresponding path program 1 times [2021-01-06 19:33:47,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:47,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899872006] [2021-01-06 19:33:47,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:47,258 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 19:33:47,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899872006] [2021-01-06 19:33:47,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742806280] [2021-01-06 19:33:47,259 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 19:33:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:47,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:33:47,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:47,522 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 19:33:47,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:33:47,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-01-06 19:33:47,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073536359] [2021-01-06 19:33:47,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:33:47,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:47,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:33:47,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:47,526 INFO L87 Difference]: Start difference. First operand 427 states and 651 transitions. Second operand 5 states. [2021-01-06 19:33:47,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:47,678 INFO L93 Difference]: Finished difference Result 1663 states and 2549 transitions. [2021-01-06 19:33:47,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:47,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2021-01-06 19:33:47,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:47,686 INFO L225 Difference]: With dead ends: 1663 [2021-01-06 19:33:47,686 INFO L226 Difference]: Without dead ends: 1247 [2021-01-06 19:33:47,688 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 19:33:47,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2021-01-06 19:33:47,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 573. [2021-01-06 19:33:47,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2021-01-06 19:33:47,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 901 transitions. [2021-01-06 19:33:47,719 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 901 transitions. Word has length 21 [2021-01-06 19:33:47,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:47,720 INFO L481 AbstractCegarLoop]: Abstraction has 573 states and 901 transitions. [2021-01-06 19:33:47,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:33:47,724 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 901 transitions. [2021-01-06 19:33:47,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-06 19:33:47,726 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:47,726 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 19:33:47,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-01-06 19:33:47,945 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 19:33:47,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:47,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1165168607, now seen corresponding path program 2 times [2021-01-06 19:33:47,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:47,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201976448] [2021-01-06 19:33:47,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:47,994 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 19:33:47,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201976448] [2021-01-06 19:33:47,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:47,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:47,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994247355] [2021-01-06 19:33:47,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:47,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:47,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:47,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:47,997 INFO L87 Difference]: Start difference. First operand 573 states and 901 transitions. Second operand 3 states. [2021-01-06 19:33:48,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:48,128 INFO L93 Difference]: Finished difference Result 1294 states and 2004 transitions. [2021-01-06 19:33:48,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:48,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-01-06 19:33:48,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:48,133 INFO L225 Difference]: With dead ends: 1294 [2021-01-06 19:33:48,133 INFO L226 Difference]: Without dead ends: 779 [2021-01-06 19:33:48,135 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 19:33:48,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2021-01-06 19:33:48,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 507. [2021-01-06 19:33:48,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2021-01-06 19:33:48,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 776 transitions. [2021-01-06 19:33:48,154 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 776 transitions. Word has length 28 [2021-01-06 19:33:48,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:48,155 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 776 transitions. [2021-01-06 19:33:48,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:48,155 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 776 transitions. [2021-01-06 19:33:48,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-06 19:33:48,156 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:48,156 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 19:33:48,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 19:33:48,157 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 19:33:48,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:48,157 INFO L82 PathProgramCache]: Analyzing trace with hash 777427029, now seen corresponding path program 1 times [2021-01-06 19:33:48,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:48,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313601066] [2021-01-06 19:33:48,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:48,231 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 19:33:48,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313601066] [2021-01-06 19:33:48,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:48,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:48,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98527268] [2021-01-06 19:33:48,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:48,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:48,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:48,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:48,233 INFO L87 Difference]: Start difference. First operand 507 states and 776 transitions. Second operand 3 states. [2021-01-06 19:33:48,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:48,306 INFO L93 Difference]: Finished difference Result 1162 states and 1763 transitions. [2021-01-06 19:33:48,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:48,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-01-06 19:33:48,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:48,311 INFO L225 Difference]: With dead ends: 1162 [2021-01-06 19:33:48,311 INFO L226 Difference]: Without dead ends: 686 [2021-01-06 19:33:48,313 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 19:33:48,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-01-06 19:33:48,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 456. [2021-01-06 19:33:48,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2021-01-06 19:33:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 682 transitions. [2021-01-06 19:33:48,329 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 682 transitions. Word has length 28 [2021-01-06 19:33:48,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:48,329 INFO L481 AbstractCegarLoop]: Abstraction has 456 states and 682 transitions. [2021-01-06 19:33:48,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:48,329 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 682 transitions. [2021-01-06 19:33:48,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-06 19:33:48,330 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:48,330 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 19:33:48,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 19:33:48,331 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 19:33:48,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:48,332 INFO L82 PathProgramCache]: Analyzing trace with hash 104948594, now seen corresponding path program 1 times [2021-01-06 19:33:48,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:48,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109732727] [2021-01-06 19:33:48,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:48,413 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 19:33:48,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109732727] [2021-01-06 19:33:48,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:48,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:48,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260043610] [2021-01-06 19:33:48,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:48,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:48,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:48,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:48,416 INFO L87 Difference]: Start difference. First operand 456 states and 682 transitions. Second operand 4 states. [2021-01-06 19:33:48,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:48,490 INFO L93 Difference]: Finished difference Result 1096 states and 1644 transitions. [2021-01-06 19:33:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:48,490 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2021-01-06 19:33:48,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:48,496 INFO L225 Difference]: With dead ends: 1096 [2021-01-06 19:33:48,496 INFO L226 Difference]: Without dead ends: 684 [2021-01-06 19:33:48,498 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 19:33:48,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2021-01-06 19:33:48,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 456. [2021-01-06 19:33:48,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2021-01-06 19:33:48,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 680 transitions. [2021-01-06 19:33:48,513 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 680 transitions. Word has length 38 [2021-01-06 19:33:48,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:48,513 INFO L481 AbstractCegarLoop]: Abstraction has 456 states and 680 transitions. [2021-01-06 19:33:48,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:48,513 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 680 transitions. [2021-01-06 19:33:48,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-06 19:33:48,514 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:48,514 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 19:33:48,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 19:33:48,515 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 19:33:48,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:48,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1338937392, now seen corresponding path program 1 times [2021-01-06 19:33:48,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:48,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6189714] [2021-01-06 19:33:48,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:48,612 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 19:33:48,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6189714] [2021-01-06 19:33:48,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:48,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:48,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899793202] [2021-01-06 19:33:48,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:48,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:48,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:48,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:48,618 INFO L87 Difference]: Start difference. First operand 456 states and 680 transitions. Second operand 3 states. [2021-01-06 19:33:48,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:48,675 INFO L93 Difference]: Finished difference Result 1032 states and 1543 transitions. [2021-01-06 19:33:48,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:48,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2021-01-06 19:33:48,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:48,680 INFO L225 Difference]: With dead ends: 1032 [2021-01-06 19:33:48,680 INFO L226 Difference]: Without dead ends: 639 [2021-01-06 19:33:48,682 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 19:33:48,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2021-01-06 19:33:48,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 412. [2021-01-06 19:33:48,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2021-01-06 19:33:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 606 transitions. [2021-01-06 19:33:48,698 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 606 transitions. Word has length 50 [2021-01-06 19:33:48,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:48,702 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 606 transitions. [2021-01-06 19:33:48,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:48,702 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 606 transitions. [2021-01-06 19:33:48,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-06 19:33:48,703 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:48,704 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 19:33:48,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 19:33:48,704 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 19:33:48,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:48,705 INFO L82 PathProgramCache]: Analyzing trace with hash 970476669, now seen corresponding path program 1 times [2021-01-06 19:33:48,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:48,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347465822] [2021-01-06 19:33:48,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:48,792 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 19:33:48,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347465822] [2021-01-06 19:33:48,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:48,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:48,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403626776] [2021-01-06 19:33:48,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:48,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:48,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:48,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:48,796 INFO L87 Difference]: Start difference. First operand 412 states and 606 transitions. Second operand 3 states. [2021-01-06 19:33:48,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:48,869 INFO L93 Difference]: Finished difference Result 866 states and 1272 transitions. [2021-01-06 19:33:48,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:48,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2021-01-06 19:33:48,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:48,873 INFO L225 Difference]: With dead ends: 866 [2021-01-06 19:33:48,874 INFO L226 Difference]: Without dead ends: 509 [2021-01-06 19:33:48,877 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 19:33:48,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2021-01-06 19:33:48,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 368. [2021-01-06 19:33:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2021-01-06 19:33:48,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 518 transitions. [2021-01-06 19:33:48,890 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 518 transitions. Word has length 51 [2021-01-06 19:33:48,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:48,890 INFO L481 AbstractCegarLoop]: Abstraction has 368 states and 518 transitions. [2021-01-06 19:33:48,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:48,890 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 518 transitions. [2021-01-06 19:33:48,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-06 19:33:48,891 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:48,891 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 19:33:48,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 19:33:48,892 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 19:33:48,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:48,892 INFO L82 PathProgramCache]: Analyzing trace with hash 216341264, now seen corresponding path program 1 times [2021-01-06 19:33:48,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:48,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169930978] [2021-01-06 19:33:48,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:48,945 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 19:33:48,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169930978] [2021-01-06 19:33:48,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:48,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:48,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709150778] [2021-01-06 19:33:48,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:48,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:48,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:48,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:48,948 INFO L87 Difference]: Start difference. First operand 368 states and 518 transitions. Second operand 4 states. [2021-01-06 19:33:49,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:49,011 INFO L93 Difference]: Finished difference Result 874 states and 1251 transitions. [2021-01-06 19:33:49,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:49,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2021-01-06 19:33:49,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:49,016 INFO L225 Difference]: With dead ends: 874 [2021-01-06 19:33:49,016 INFO L226 Difference]: Without dead ends: 578 [2021-01-06 19:33:49,017 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 19:33:49,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2021-01-06 19:33:49,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 368. [2021-01-06 19:33:49,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2021-01-06 19:33:49,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 516 transitions. [2021-01-06 19:33:49,031 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 516 transitions. Word has length 62 [2021-01-06 19:33:49,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:49,032 INFO L481 AbstractCegarLoop]: Abstraction has 368 states and 516 transitions. [2021-01-06 19:33:49,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:49,033 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 516 transitions. [2021-01-06 19:33:49,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-01-06 19:33:49,033 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:49,034 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 19:33:49,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 19:33:49,034 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 19:33:49,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:49,035 INFO L82 PathProgramCache]: Analyzing trace with hash 542276843, now seen corresponding path program 1 times [2021-01-06 19:33:49,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:49,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226561725] [2021-01-06 19:33:49,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:49,153 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 19:33:49,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226561725] [2021-01-06 19:33:49,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82161695] [2021-01-06 19:33:49,154 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 19:33:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:49,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-06 19:33:49,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:49,398 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 19:33:49,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:33:49,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-01-06 19:33:49,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693374612] [2021-01-06 19:33:49,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:33:49,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:49,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:33:49,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:33:49,401 INFO L87 Difference]: Start difference. First operand 368 states and 516 transitions. Second operand 6 states. [2021-01-06 19:33:49,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:49,514 INFO L93 Difference]: Finished difference Result 1424 states and 2026 transitions. [2021-01-06 19:33:49,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:49,514 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2021-01-06 19:33:49,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:49,520 INFO L225 Difference]: With dead ends: 1424 [2021-01-06 19:33:49,520 INFO L226 Difference]: Without dead ends: 1075 [2021-01-06 19:33:49,522 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 19:33:49,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2021-01-06 19:33:49,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 441. [2021-01-06 19:33:49,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2021-01-06 19:33:49,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 613 transitions. [2021-01-06 19:33:49,540 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 613 transitions. Word has length 76 [2021-01-06 19:33:49,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:49,541 INFO L481 AbstractCegarLoop]: Abstraction has 441 states and 613 transitions. [2021-01-06 19:33:49,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:33:49,541 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 613 transitions. [2021-01-06 19:33:49,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-01-06 19:33:49,542 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:49,542 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 19:33:49,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-06 19:33:49,756 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 19:33:49,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:49,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1726325344, now seen corresponding path program 2 times [2021-01-06 19:33:49,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:49,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973012988] [2021-01-06 19:33:49,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:49,844 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 19:33:49,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973012988] [2021-01-06 19:33:49,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:49,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:49,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802238675] [2021-01-06 19:33:49,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:49,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:49,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:49,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:49,851 INFO L87 Difference]: Start difference. First operand 441 states and 613 transitions. Second operand 3 states. [2021-01-06 19:33:49,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:49,905 INFO L93 Difference]: Finished difference Result 863 states and 1242 transitions. [2021-01-06 19:33:49,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:49,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2021-01-06 19:33:49,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:49,909 INFO L225 Difference]: With dead ends: 863 [2021-01-06 19:33:49,909 INFO L226 Difference]: Without dead ends: 564 [2021-01-06 19:33:49,910 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 19:33:49,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2021-01-06 19:33:49,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 397. [2021-01-06 19:33:49,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2021-01-06 19:33:49,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 555 transitions. [2021-01-06 19:33:49,928 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 555 transitions. Word has length 103 [2021-01-06 19:33:49,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:49,929 INFO L481 AbstractCegarLoop]: Abstraction has 397 states and 555 transitions. [2021-01-06 19:33:49,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:49,929 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 555 transitions. [2021-01-06 19:33:49,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-01-06 19:33:49,930 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:49,930 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 19:33:49,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 19:33:49,931 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 19:33:49,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:49,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1846233333, now seen corresponding path program 1 times [2021-01-06 19:33:49,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:49,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296125097] [2021-01-06 19:33:49,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:50,001 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 19:33:50,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296125097] [2021-01-06 19:33:50,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:50,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:50,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87522125] [2021-01-06 19:33:50,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:50,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:50,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:50,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:50,003 INFO L87 Difference]: Start difference. First operand 397 states and 555 transitions. Second operand 3 states. [2021-01-06 19:33:50,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:50,057 INFO L93 Difference]: Finished difference Result 572 states and 815 transitions. [2021-01-06 19:33:50,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:50,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2021-01-06 19:33:50,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:50,060 INFO L225 Difference]: With dead ends: 572 [2021-01-06 19:33:50,060 INFO L226 Difference]: Without dead ends: 313 [2021-01-06 19:33:50,063 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 19:33:50,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-01-06 19:33:50,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2021-01-06 19:33:50,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2021-01-06 19:33:50,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 432 transitions. [2021-01-06 19:33:50,078 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 432 transitions. Word has length 112 [2021-01-06 19:33:50,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:50,078 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 432 transitions. [2021-01-06 19:33:50,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:50,079 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 432 transitions. [2021-01-06 19:33:50,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-06 19:33:50,080 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:50,080 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 19:33:50,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 19:33:50,081 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 19:33:50,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:50,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1519105475, now seen corresponding path program 1 times [2021-01-06 19:33:50,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:50,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551710311] [2021-01-06 19:33:50,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:50,182 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 19:33:50,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551710311] [2021-01-06 19:33:50,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:50,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:50,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267062896] [2021-01-06 19:33:50,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:50,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:50,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:50,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:50,185 INFO L87 Difference]: Start difference. First operand 313 states and 432 transitions. Second operand 4 states. [2021-01-06 19:33:50,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:50,227 INFO L93 Difference]: Finished difference Result 487 states and 691 transitions. [2021-01-06 19:33:50,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:33:50,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2021-01-06 19:33:50,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:50,230 INFO L225 Difference]: With dead ends: 487 [2021-01-06 19:33:50,230 INFO L226 Difference]: Without dead ends: 313 [2021-01-06 19:33:50,231 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 19:33:50,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-01-06 19:33:50,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2021-01-06 19:33:50,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2021-01-06 19:33:50,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 429 transitions. [2021-01-06 19:33:50,245 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 429 transitions. Word has length 115 [2021-01-06 19:33:50,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:50,246 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 429 transitions. [2021-01-06 19:33:50,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:50,246 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 429 transitions. [2021-01-06 19:33:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-01-06 19:33:50,251 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:50,251 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 19:33:50,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 19:33:50,252 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 19:33:50,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:50,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1299139450, now seen corresponding path program 1 times [2021-01-06 19:33:50,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:50,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390853393] [2021-01-06 19:33:50,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:50,329 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 19:33:50,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390853393] [2021-01-06 19:33:50,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:50,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:50,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227215992] [2021-01-06 19:33:50,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:50,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:50,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:50,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:50,336 INFO L87 Difference]: Start difference. First operand 313 states and 429 transitions. Second operand 3 states. [2021-01-06 19:33:50,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:50,373 INFO L93 Difference]: Finished difference Result 617 states and 887 transitions. [2021-01-06 19:33:50,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:50,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2021-01-06 19:33:50,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:50,376 INFO L225 Difference]: With dead ends: 617 [2021-01-06 19:33:50,376 INFO L226 Difference]: Without dead ends: 448 [2021-01-06 19:33:50,378 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 19:33:50,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2021-01-06 19:33:50,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 308. [2021-01-06 19:33:50,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2021-01-06 19:33:50,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 421 transitions. [2021-01-06 19:33:50,396 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 421 transitions. Word has length 126 [2021-01-06 19:33:50,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:50,396 INFO L481 AbstractCegarLoop]: Abstraction has 308 states and 421 transitions. [2021-01-06 19:33:50,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:50,397 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 421 transitions. [2021-01-06 19:33:50,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-01-06 19:33:50,398 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:50,398 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 19:33:50,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 19:33:50,399 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 19:33:50,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:50,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1867178510, now seen corresponding path program 1 times [2021-01-06 19:33:50,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:50,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016328579] [2021-01-06 19:33:50,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:50,490 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 19:33:50,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016328579] [2021-01-06 19:33:50,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:50,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:50,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536771506] [2021-01-06 19:33:50,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:50,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:50,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:50,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:50,492 INFO L87 Difference]: Start difference. First operand 308 states and 421 transitions. Second operand 3 states. [2021-01-06 19:33:50,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:50,525 INFO L93 Difference]: Finished difference Result 597 states and 857 transitions. [2021-01-06 19:33:50,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:50,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2021-01-06 19:33:50,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:50,528 INFO L225 Difference]: With dead ends: 597 [2021-01-06 19:33:50,529 INFO L226 Difference]: Without dead ends: 433 [2021-01-06 19:33:50,530 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 19:33:50,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2021-01-06 19:33:50,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 304. [2021-01-06 19:33:50,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2021-01-06 19:33:50,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 414 transitions. [2021-01-06 19:33:50,545 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 414 transitions. Word has length 131 [2021-01-06 19:33:50,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:50,545 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 414 transitions. [2021-01-06 19:33:50,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:50,545 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 414 transitions. [2021-01-06 19:33:50,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-01-06 19:33:50,547 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:50,547 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 19:33:50,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-06 19:33:50,547 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 19:33:50,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:50,548 INFO L82 PathProgramCache]: Analyzing trace with hash -818573298, now seen corresponding path program 1 times [2021-01-06 19:33:50,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:50,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400372760] [2021-01-06 19:33:50,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:50,641 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 19:33:50,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400372760] [2021-01-06 19:33:50,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:50,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:50,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463041521] [2021-01-06 19:33:50,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:50,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:50,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:50,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:50,644 INFO L87 Difference]: Start difference. First operand 304 states and 414 transitions. Second operand 3 states. [2021-01-06 19:33:50,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:50,669 INFO L93 Difference]: Finished difference Result 462 states and 651 transitions. [2021-01-06 19:33:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:50,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2021-01-06 19:33:50,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:50,672 INFO L225 Difference]: With dead ends: 462 [2021-01-06 19:33:50,672 INFO L226 Difference]: Without dead ends: 302 [2021-01-06 19:33:50,673 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 19:33:50,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-01-06 19:33:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 301. [2021-01-06 19:33:50,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2021-01-06 19:33:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 408 transitions. [2021-01-06 19:33:50,686 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 408 transitions. Word has length 137 [2021-01-06 19:33:50,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:50,686 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 408 transitions. [2021-01-06 19:33:50,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:50,686 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 408 transitions. [2021-01-06 19:33:50,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-01-06 19:33:50,688 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:50,688 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] [2021-01-06 19:33:50,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 19:33:50,689 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 19:33:50,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:50,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1815591173, now seen corresponding path program 1 times [2021-01-06 19:33:50,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:50,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148310545] [2021-01-06 19:33:50,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:50,771 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 19:33:50,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148310545] [2021-01-06 19:33:50,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:50,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:50,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254133188] [2021-01-06 19:33:50,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:50,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:50,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:50,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:50,774 INFO L87 Difference]: Start difference. First operand 301 states and 408 transitions. Second operand 3 states. [2021-01-06 19:33:50,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:50,788 INFO L93 Difference]: Finished difference Result 506 states and 711 transitions. [2021-01-06 19:33:50,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:50,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2021-01-06 19:33:50,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:50,791 INFO L225 Difference]: With dead ends: 506 [2021-01-06 19:33:50,791 INFO L226 Difference]: Without dead ends: 349 [2021-01-06 19:33:50,793 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 19:33:50,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-01-06 19:33:50,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 298. [2021-01-06 19:33:50,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-01-06 19:33:50,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 404 transitions. [2021-01-06 19:33:50,807 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 404 transitions. Word has length 145 [2021-01-06 19:33:50,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:50,808 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 404 transitions. [2021-01-06 19:33:50,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:50,808 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 404 transitions. [2021-01-06 19:33:50,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-01-06 19:33:50,809 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:50,810 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] [2021-01-06 19:33:50,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-06 19:33:50,810 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 19:33:50,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:50,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1500627300, now seen corresponding path program 1 times [2021-01-06 19:33:50,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:50,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030655875] [2021-01-06 19:33:50,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:50,925 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 19:33:50,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030655875] [2021-01-06 19:33:50,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:50,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:50,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509783482] [2021-01-06 19:33:50,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:50,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:50,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:50,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:50,930 INFO L87 Difference]: Start difference. First operand 298 states and 404 transitions. Second operand 3 states. [2021-01-06 19:33:50,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:50,963 INFO L93 Difference]: Finished difference Result 482 states and 670 transitions. [2021-01-06 19:33:50,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:50,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2021-01-06 19:33:50,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:50,966 INFO L225 Difference]: With dead ends: 482 [2021-01-06 19:33:50,966 INFO L226 Difference]: Without dead ends: 298 [2021-01-06 19:33:50,970 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 19:33:50,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-01-06 19:33:50,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-01-06 19:33:50,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-01-06 19:33:50,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 401 transitions. [2021-01-06 19:33:50,988 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 401 transitions. Word has length 146 [2021-01-06 19:33:50,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:50,988 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 401 transitions. [2021-01-06 19:33:50,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:50,989 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 401 transitions. [2021-01-06 19:33:50,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-01-06 19:33:50,990 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:50,991 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] [2021-01-06 19:33:50,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-06 19:33:50,991 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 19:33:50,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:50,992 INFO L82 PathProgramCache]: Analyzing trace with hash 51777678, now seen corresponding path program 1 times [2021-01-06 19:33:50,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:50,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373287858] [2021-01-06 19:33:50,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:51,172 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 19:33:51,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373287858] [2021-01-06 19:33:51,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:51,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:51,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362711560] [2021-01-06 19:33:51,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:51,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:51,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:51,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:51,181 INFO L87 Difference]: Start difference. First operand 298 states and 401 transitions. Second operand 4 states. [2021-01-06 19:33:51,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:51,289 INFO L93 Difference]: Finished difference Result 634 states and 893 transitions. [2021-01-06 19:33:51,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:51,289 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2021-01-06 19:33:51,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:51,292 INFO L225 Difference]: With dead ends: 634 [2021-01-06 19:33:51,292 INFO L226 Difference]: Without dead ends: 480 [2021-01-06 19:33:51,296 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 19:33:51,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2021-01-06 19:33:51,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 384. [2021-01-06 19:33:51,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2021-01-06 19:33:51,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 523 transitions. [2021-01-06 19:33:51,322 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 523 transitions. Word has length 158 [2021-01-06 19:33:51,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:51,322 INFO L481 AbstractCegarLoop]: Abstraction has 384 states and 523 transitions. [2021-01-06 19:33:51,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:51,322 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 523 transitions. [2021-01-06 19:33:51,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-01-06 19:33:51,324 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:51,325 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 19:33:51,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-06 19:33:51,325 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 19:33:51,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:51,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1613997843, now seen corresponding path program 1 times [2021-01-06 19:33:51,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:51,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613177765] [2021-01-06 19:33:51,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:51,434 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 19:33:51,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613177765] [2021-01-06 19:33:51,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:51,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:51,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496188145] [2021-01-06 19:33:51,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:51,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:51,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:51,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:51,437 INFO L87 Difference]: Start difference. First operand 384 states and 523 transitions. Second operand 3 states. [2021-01-06 19:33:51,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:51,490 INFO L93 Difference]: Finished difference Result 796 states and 1128 transitions. [2021-01-06 19:33:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:51,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2021-01-06 19:33:51,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:51,494 INFO L225 Difference]: With dead ends: 796 [2021-01-06 19:33:51,494 INFO L226 Difference]: Without dead ends: 597 [2021-01-06 19:33:51,495 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 19:33:51,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2021-01-06 19:33:51,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 457. [2021-01-06 19:33:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2021-01-06 19:33:51,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 624 transitions. [2021-01-06 19:33:51,527 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 624 transitions. Word has length 178 [2021-01-06 19:33:51,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:51,528 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 624 transitions. [2021-01-06 19:33:51,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:51,528 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 624 transitions. [2021-01-06 19:33:51,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-01-06 19:33:51,532 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:51,532 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 19:33:51,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-06 19:33:51,533 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 19:33:51,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:51,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1823165851, now seen corresponding path program 1 times [2021-01-06 19:33:51,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:51,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404559147] [2021-01-06 19:33:51,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:51,688 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 19:33:51,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404559147] [2021-01-06 19:33:51,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:51,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:51,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756227766] [2021-01-06 19:33:51,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:51,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:51,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:51,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:51,691 INFO L87 Difference]: Start difference. First operand 457 states and 624 transitions. Second operand 3 states. [2021-01-06 19:33:51,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:51,767 INFO L93 Difference]: Finished difference Result 949 states and 1342 transitions. [2021-01-06 19:33:51,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:51,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2021-01-06 19:33:51,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:51,773 INFO L225 Difference]: With dead ends: 949 [2021-01-06 19:33:51,773 INFO L226 Difference]: Without dead ends: 706 [2021-01-06 19:33:51,774 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 19:33:51,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-01-06 19:33:51,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 553. [2021-01-06 19:33:51,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2021-01-06 19:33:51,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 758 transitions. [2021-01-06 19:33:51,826 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 758 transitions. Word has length 179 [2021-01-06 19:33:51,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:51,826 INFO L481 AbstractCegarLoop]: Abstraction has 553 states and 758 transitions. [2021-01-06 19:33:51,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:51,826 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 758 transitions. [2021-01-06 19:33:51,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-01-06 19:33:51,830 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:51,830 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 19:33:51,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-06 19:33:51,831 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 19:33:51,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:51,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1693562478, now seen corresponding path program 1 times [2021-01-06 19:33:51,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:51,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369131620] [2021-01-06 19:33:51,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:51,971 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 19:33:51,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369131620] [2021-01-06 19:33:51,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:51,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:51,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21800653] [2021-01-06 19:33:51,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:51,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:51,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:51,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:51,973 INFO L87 Difference]: Start difference. First operand 553 states and 758 transitions. Second operand 3 states. [2021-01-06 19:33:52,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:52,061 INFO L93 Difference]: Finished difference Result 1123 states and 1592 transitions. [2021-01-06 19:33:52,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:52,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2021-01-06 19:33:52,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:52,067 INFO L225 Difference]: With dead ends: 1123 [2021-01-06 19:33:52,067 INFO L226 Difference]: Without dead ends: 816 [2021-01-06 19:33:52,068 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 19:33:52,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2021-01-06 19:33:52,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 635. [2021-01-06 19:33:52,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2021-01-06 19:33:52,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 878 transitions. [2021-01-06 19:33:52,136 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 878 transitions. Word has length 180 [2021-01-06 19:33:52,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:52,137 INFO L481 AbstractCegarLoop]: Abstraction has 635 states and 878 transitions. [2021-01-06 19:33:52,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:52,137 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 878 transitions. [2021-01-06 19:33:52,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-01-06 19:33:52,142 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:52,142 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 19:33:52,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-06 19:33:52,143 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 19:33:52,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:52,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1912417196, now seen corresponding path program 1 times [2021-01-06 19:33:52,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:52,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031078277] [2021-01-06 19:33:52,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:52,356 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 19:33:52,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031078277] [2021-01-06 19:33:52,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440643189] [2021-01-06 19:33:52,357 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 19:33:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:52,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:33:52,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:52,833 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 19:33:52,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:33:52,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-01-06 19:33:52,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890685652] [2021-01-06 19:33:52,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:52,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:52,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:52,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:52,836 INFO L87 Difference]: Start difference. First operand 635 states and 878 transitions. Second operand 3 states. [2021-01-06 19:33:52,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:52,941 INFO L93 Difference]: Finished difference Result 1279 states and 1762 transitions. [2021-01-06 19:33:52,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:52,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2021-01-06 19:33:52,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:52,946 INFO L225 Difference]: With dead ends: 1279 [2021-01-06 19:33:52,947 INFO L226 Difference]: Without dead ends: 898 [2021-01-06 19:33:52,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:52,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-01-06 19:33:52,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 635. [2021-01-06 19:33:52,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2021-01-06 19:33:52,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 869 transitions. [2021-01-06 19:33:52,994 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 869 transitions. Word has length 180 [2021-01-06 19:33:52,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:52,994 INFO L481 AbstractCegarLoop]: Abstraction has 635 states and 869 transitions. [2021-01-06 19:33:52,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:52,994 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 869 transitions. [2021-01-06 19:33:52,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-01-06 19:33:52,997 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:52,997 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:53,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-01-06 19:33:53,211 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 19:33:53,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:53,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1032422361, now seen corresponding path program 1 times [2021-01-06 19:33:53,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:53,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77073271] [2021-01-06 19:33:53,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:53,329 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 19:33:53,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77073271] [2021-01-06 19:33:53,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601777879] [2021-01-06 19:33:53,330 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 19:33:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:53,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 19:33:53,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:53,698 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 19:33:53,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:33:53,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-01-06 19:33:53,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034065839] [2021-01-06 19:33:53,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:53,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:53,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:53,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:33:53,701 INFO L87 Difference]: Start difference. First operand 635 states and 869 transitions. Second operand 3 states. [2021-01-06 19:33:53,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:53,819 INFO L93 Difference]: Finished difference Result 1495 states and 2082 transitions. [2021-01-06 19:33:53,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:53,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2021-01-06 19:33:53,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:53,826 INFO L225 Difference]: With dead ends: 1495 [2021-01-06 19:33:53,826 INFO L226 Difference]: Without dead ends: 1114 [2021-01-06 19:33:53,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 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 19:33:53,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2021-01-06 19:33:53,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 635. [2021-01-06 19:33:53,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2021-01-06 19:33:53,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 868 transitions. [2021-01-06 19:33:53,877 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 868 transitions. Word has length 181 [2021-01-06 19:33:53,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:53,878 INFO L481 AbstractCegarLoop]: Abstraction has 635 states and 868 transitions. [2021-01-06 19:33:53,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:53,878 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 868 transitions. [2021-01-06 19:33:53,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-01-06 19:33:53,880 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:53,881 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] [2021-01-06 19:33:54,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:33:54,096 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 19:33:54,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:54,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1734861802, now seen corresponding path program 1 times [2021-01-06 19:33:54,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:54,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476148387] [2021-01-06 19:33:54,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:54,300 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 19:33:54,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476148387] [2021-01-06 19:33:54,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922688078] [2021-01-06 19:33:54,301 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 19:33:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:54,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-06 19:33:54,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:54,587 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 19:33:54,619 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 19:33:54,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:33:54,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-01-06 19:33:54,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370637865] [2021-01-06 19:33:54,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:54,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:54,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:54,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:33:54,622 INFO L87 Difference]: Start difference. First operand 635 states and 868 transitions. Second operand 4 states. [2021-01-06 19:33:54,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:54,755 INFO L93 Difference]: Finished difference Result 1042 states and 1445 transitions. [2021-01-06 19:33:54,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:54,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 182 [2021-01-06 19:33:54,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:54,761 INFO L225 Difference]: With dead ends: 1042 [2021-01-06 19:33:54,761 INFO L226 Difference]: Without dead ends: 1040 [2021-01-06 19:33:54,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:33:54,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2021-01-06 19:33:54,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 637. [2021-01-06 19:33:54,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2021-01-06 19:33:54,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 870 transitions. [2021-01-06 19:33:54,818 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 870 transitions. Word has length 182 [2021-01-06 19:33:54,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:54,818 INFO L481 AbstractCegarLoop]: Abstraction has 637 states and 870 transitions. [2021-01-06 19:33:54,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:54,819 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 870 transitions. [2021-01-06 19:33:54,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-01-06 19:33:54,821 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:54,821 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, 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] [2021-01-06 19:33:55,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-01-06 19:33:55,036 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 19:33:55,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:55,036 INFO L82 PathProgramCache]: Analyzing trace with hash -20917711, now seen corresponding path program 1 times [2021-01-06 19:33:55,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:55,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522051146] [2021-01-06 19:33:55,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:55,227 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 19:33:55,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522051146] [2021-01-06 19:33:55,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086501953] [2021-01-06 19:33:55,228 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 19:33:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:55,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 19:33:55,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:33:55,723 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 19:33:55,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:33:55,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-01-06 19:33:55,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269822991] [2021-01-06 19:33:55,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 19:33:55,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:55,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 19:33:55,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:33:55,726 INFO L87 Difference]: Start difference. First operand 637 states and 870 transitions. Second operand 11 states. [2021-01-06 19:33:56,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:56,543 INFO L93 Difference]: Finished difference Result 3833 states and 5430 transitions. [2021-01-06 19:33:56,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-06 19:33:56,543 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 185 [2021-01-06 19:33:56,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:56,561 INFO L225 Difference]: With dead ends: 3833 [2021-01-06 19:33:56,562 INFO L226 Difference]: Without dead ends: 3450 [2021-01-06 19:33:56,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 185 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 19:33:56,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2021-01-06 19:33:56,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 871. [2021-01-06 19:33:56,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2021-01-06 19:33:56,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1176 transitions. [2021-01-06 19:33:56,658 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1176 transitions. Word has length 185 [2021-01-06 19:33:56,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:56,658 INFO L481 AbstractCegarLoop]: Abstraction has 871 states and 1176 transitions. [2021-01-06 19:33:56,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 19:33:56,659 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1176 transitions. [2021-01-06 19:33:56,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-01-06 19:33:56,662 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:56,662 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] [2021-01-06 19:33:56,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-01-06 19:33:56,877 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 19:33:56,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:56,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1300781389, now seen corresponding path program 1 times [2021-01-06 19:33:56,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:56,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072867161] [2021-01-06 19:33:56,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:57,007 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 19:33:57,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072867161] [2021-01-06 19:33:57,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:57,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:57,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098384194] [2021-01-06 19:33:57,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:57,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:57,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:57,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:57,010 INFO L87 Difference]: Start difference. First operand 871 states and 1176 transitions. Second operand 3 states. [2021-01-06 19:33:57,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:57,179 INFO L93 Difference]: Finished difference Result 1941 states and 2659 transitions. [2021-01-06 19:33:57,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:57,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2021-01-06 19:33:57,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:57,188 INFO L225 Difference]: With dead ends: 1941 [2021-01-06 19:33:57,188 INFO L226 Difference]: Without dead ends: 1558 [2021-01-06 19:33:57,190 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 19:33:57,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2021-01-06 19:33:57,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 871. [2021-01-06 19:33:57,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2021-01-06 19:33:57,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1174 transitions. [2021-01-06 19:33:57,262 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1174 transitions. Word has length 185 [2021-01-06 19:33:57,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:57,263 INFO L481 AbstractCegarLoop]: Abstraction has 871 states and 1174 transitions. [2021-01-06 19:33:57,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1174 transitions. [2021-01-06 19:33:57,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-01-06 19:33:57,266 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:57,267 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:57,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-01-06 19:33:57,267 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 19:33:57,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:57,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1917824077, now seen corresponding path program 1 times [2021-01-06 19:33:57,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:57,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710980850] [2021-01-06 19:33:57,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:57,340 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 19:33:57,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710980850] [2021-01-06 19:33:57,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:57,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:33:57,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700271641] [2021-01-06 19:33:57,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:33:57,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:57,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:33:57,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:33:57,342 INFO L87 Difference]: Start difference. First operand 871 states and 1174 transitions. Second operand 3 states. [2021-01-06 19:33:57,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:57,425 INFO L93 Difference]: Finished difference Result 1463 states and 1989 transitions. [2021-01-06 19:33:57,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:33:57,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2021-01-06 19:33:57,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:57,430 INFO L225 Difference]: With dead ends: 1463 [2021-01-06 19:33:57,430 INFO L226 Difference]: Without dead ends: 713 [2021-01-06 19:33:57,431 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 19:33:57,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-01-06 19:33:57,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 712. [2021-01-06 19:33:57,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2021-01-06 19:33:57,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 941 transitions. [2021-01-06 19:33:57,484 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 941 transitions. Word has length 188 [2021-01-06 19:33:57,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:57,485 INFO L481 AbstractCegarLoop]: Abstraction has 712 states and 941 transitions. [2021-01-06 19:33:57,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:33:57,485 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 941 transitions. [2021-01-06 19:33:57,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-01-06 19:33:57,488 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:57,488 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-01-06 19:33:57,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-01-06 19:33:57,489 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 19:33:57,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:57,489 INFO L82 PathProgramCache]: Analyzing trace with hash -851083593, now seen corresponding path program 1 times [2021-01-06 19:33:57,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:57,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909010487] [2021-01-06 19:33:57,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:57,698 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 19:33:57,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909010487] [2021-01-06 19:33:57,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:57,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 19:33:57,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819389478] [2021-01-06 19:33:57,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 19:33:57,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:57,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 19:33:57,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:33:57,701 INFO L87 Difference]: Start difference. First operand 712 states and 941 transitions. Second operand 9 states. [2021-01-06 19:33:59,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:59,047 INFO L93 Difference]: Finished difference Result 2346 states and 3176 transitions. [2021-01-06 19:33:59,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-06 19:33:59,047 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 193 [2021-01-06 19:33:59,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:59,058 INFO L225 Difference]: With dead ends: 2346 [2021-01-06 19:33:59,058 INFO L226 Difference]: Without dead ends: 1974 [2021-01-06 19:33:59,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=265, Invalid=791, Unknown=0, NotChecked=0, Total=1056 [2021-01-06 19:33:59,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2021-01-06 19:33:59,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 904. [2021-01-06 19:33:59,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2021-01-06 19:33:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1179 transitions. [2021-01-06 19:33:59,159 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1179 transitions. Word has length 193 [2021-01-06 19:33:59,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:59,160 INFO L481 AbstractCegarLoop]: Abstraction has 904 states and 1179 transitions. [2021-01-06 19:33:59,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 19:33:59,160 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1179 transitions. [2021-01-06 19:33:59,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-01-06 19:33:59,163 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:59,164 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] [2021-01-06 19:33:59,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-01-06 19:33:59,164 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 19:33:59,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:59,165 INFO L82 PathProgramCache]: Analyzing trace with hash -427436871, now seen corresponding path program 1 times [2021-01-06 19:33:59,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:59,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656654537] [2021-01-06 19:33:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:59,290 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 19:33:59,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656654537] [2021-01-06 19:33:59,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:59,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:33:59,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132335383] [2021-01-06 19:33:59,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:33:59,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:59,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:33:59,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:33:59,293 INFO L87 Difference]: Start difference. First operand 904 states and 1179 transitions. Second operand 4 states. [2021-01-06 19:33:59,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:33:59,510 INFO L93 Difference]: Finished difference Result 1693 states and 2228 transitions. [2021-01-06 19:33:59,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:33:59,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 193 [2021-01-06 19:33:59,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:33:59,515 INFO L225 Difference]: With dead ends: 1693 [2021-01-06 19:33:59,515 INFO L226 Difference]: Without dead ends: 1129 [2021-01-06 19:33:59,516 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 19:33:59,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2021-01-06 19:33:59,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 823. [2021-01-06 19:33:59,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2021-01-06 19:33:59,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1073 transitions. [2021-01-06 19:33:59,616 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1073 transitions. Word has length 193 [2021-01-06 19:33:59,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:33:59,617 INFO L481 AbstractCegarLoop]: Abstraction has 823 states and 1073 transitions. [2021-01-06 19:33:59,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:33:59,617 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1073 transitions. [2021-01-06 19:33:59,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-01-06 19:33:59,619 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:33:59,619 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:33:59,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-01-06 19:33:59,620 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 19:33:59,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:33:59,621 INFO L82 PathProgramCache]: Analyzing trace with hash -851544751, now seen corresponding path program 1 times [2021-01-06 19:33:59,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:33:59,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218634318] [2021-01-06 19:33:59,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:33:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:33:59,781 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 19:33:59,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218634318] [2021-01-06 19:33:59,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:33:59,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 19:33:59,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103129667] [2021-01-06 19:33:59,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:33:59,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:33:59,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:33:59,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:33:59,784 INFO L87 Difference]: Start difference. First operand 823 states and 1073 transitions. Second operand 6 states. [2021-01-06 19:34:00,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:00,087 INFO L93 Difference]: Finished difference Result 2642 states and 3565 transitions. [2021-01-06 19:34:00,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:34:00,088 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 199 [2021-01-06 19:34:00,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:00,095 INFO L225 Difference]: With dead ends: 2642 [2021-01-06 19:34:00,095 INFO L226 Difference]: Without dead ends: 2153 [2021-01-06 19:34:00,097 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 19:34:00,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2021-01-06 19:34:00,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 900. [2021-01-06 19:34:00,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2021-01-06 19:34:00,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1171 transitions. [2021-01-06 19:34:00,193 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1171 transitions. Word has length 199 [2021-01-06 19:34:00,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:00,193 INFO L481 AbstractCegarLoop]: Abstraction has 900 states and 1171 transitions. [2021-01-06 19:34:00,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:34:00,193 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1171 transitions. [2021-01-06 19:34:00,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-01-06 19:34:00,195 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:00,195 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:00,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-01-06 19:34:00,196 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 19:34:00,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:00,196 INFO L82 PathProgramCache]: Analyzing trace with hash -93221871, now seen corresponding path program 1 times [2021-01-06 19:34:00,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:00,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275705499] [2021-01-06 19:34:00,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:00,444 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 19:34:00,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275705499] [2021-01-06 19:34:00,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:00,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-06 19:34:00,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084829319] [2021-01-06 19:34:00,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 19:34:00,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:00,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 19:34:00,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-01-06 19:34:00,447 INFO L87 Difference]: Start difference. First operand 900 states and 1171 transitions. Second operand 10 states. [2021-01-06 19:34:02,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:02,433 INFO L93 Difference]: Finished difference Result 4100 states and 5363 transitions. [2021-01-06 19:34:02,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-06 19:34:02,434 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2021-01-06 19:34:02,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:02,443 INFO L225 Difference]: With dead ends: 4100 [2021-01-06 19:34:02,443 INFO L226 Difference]: Without dead ends: 3537 [2021-01-06 19:34:02,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=322, Invalid=1238, Unknown=0, NotChecked=0, Total=1560 [2021-01-06 19:34:02,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3537 states. [2021-01-06 19:34:02,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3537 to 1135. [2021-01-06 19:34:02,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1135 states. [2021-01-06 19:34:02,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1453 transitions. [2021-01-06 19:34:02,583 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1453 transitions. Word has length 199 [2021-01-06 19:34:02,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:02,584 INFO L481 AbstractCegarLoop]: Abstraction has 1135 states and 1453 transitions. [2021-01-06 19:34:02,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 19:34:02,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1453 transitions. [2021-01-06 19:34:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-01-06 19:34:02,586 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:02,586 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:02,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-01-06 19:34:02,587 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 19:34:02,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:02,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1815354803, now seen corresponding path program 1 times [2021-01-06 19:34:02,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:02,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841335280] [2021-01-06 19:34:02,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:02,781 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 19:34:02,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841335280] [2021-01-06 19:34:02,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:02,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 19:34:02,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056536351] [2021-01-06 19:34:02,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 19:34:02,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:02,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 19:34:02,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:34:02,784 INFO L87 Difference]: Start difference. First operand 1135 states and 1453 transitions. Second operand 9 states. [2021-01-06 19:34:04,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:04,134 INFO L93 Difference]: Finished difference Result 3342 states and 4325 transitions. [2021-01-06 19:34:04,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-06 19:34:04,135 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 199 [2021-01-06 19:34:04,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:04,142 INFO L225 Difference]: With dead ends: 3342 [2021-01-06 19:34:04,143 INFO L226 Difference]: Without dead ends: 2539 [2021-01-06 19:34:04,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2021-01-06 19:34:04,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2539 states. [2021-01-06 19:34:04,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2539 to 1237. [2021-01-06 19:34:04,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1237 states. [2021-01-06 19:34:04,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1574 transitions. [2021-01-06 19:34:04,333 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1574 transitions. Word has length 199 [2021-01-06 19:34:04,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:04,334 INFO L481 AbstractCegarLoop]: Abstraction has 1237 states and 1574 transitions. [2021-01-06 19:34:04,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 19:34:04,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1574 transitions. [2021-01-06 19:34:04,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-01-06 19:34:04,337 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:04,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:04,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-01-06 19:34:04,338 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 19:34:04,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:04,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1721284693, now seen corresponding path program 1 times [2021-01-06 19:34:04,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:04,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385706306] [2021-01-06 19:34:04,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:04,493 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-01-06 19:34:04,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385706306] [2021-01-06 19:34:04,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:04,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:34:04,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196890846] [2021-01-06 19:34:04,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:34:04,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:04,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:34:04,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:34:04,497 INFO L87 Difference]: Start difference. First operand 1237 states and 1574 transitions. Second operand 4 states. [2021-01-06 19:34:04,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:04,788 INFO L93 Difference]: Finished difference Result 2259 states and 2902 transitions. [2021-01-06 19:34:04,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:34:04,789 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 207 [2021-01-06 19:34:04,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:04,792 INFO L225 Difference]: With dead ends: 2259 [2021-01-06 19:34:04,792 INFO L226 Difference]: Without dead ends: 1362 [2021-01-06 19:34:04,794 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 19:34:04,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2021-01-06 19:34:04,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1018. [2021-01-06 19:34:04,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1018 states. [2021-01-06 19:34:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1274 transitions. [2021-01-06 19:34:04,899 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1274 transitions. Word has length 207 [2021-01-06 19:34:04,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:04,900 INFO L481 AbstractCegarLoop]: Abstraction has 1018 states and 1274 transitions. [2021-01-06 19:34:04,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:34:04,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1274 transitions. [2021-01-06 19:34:04,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-01-06 19:34:04,903 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:04,903 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:04,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-01-06 19:34:04,904 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 19:34:04,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:04,904 INFO L82 PathProgramCache]: Analyzing trace with hash 773001460, now seen corresponding path program 1 times [2021-01-06 19:34:04,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:04,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680798853] [2021-01-06 19:34:04,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:05,348 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 43 proven. 9 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-01-06 19:34:05,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680798853] [2021-01-06 19:34:05,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680722990] [2021-01-06 19:34:05,349 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 19:34:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:05,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:34:05,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:05,996 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:05,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:34:05,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2021-01-06 19:34:05,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000696780] [2021-01-06 19:34:05,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 19:34:05,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:05,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 19:34:05,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2021-01-06 19:34:05,999 INFO L87 Difference]: Start difference. First operand 1018 states and 1274 transitions. Second operand 16 states. [2021-01-06 19:34:12,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:12,540 INFO L93 Difference]: Finished difference Result 8101 states and 10151 transitions. [2021-01-06 19:34:12,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-01-06 19:34:12,541 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 234 [2021-01-06 19:34:12,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:12,557 INFO L225 Difference]: With dead ends: 8101 [2021-01-06 19:34:12,557 INFO L226 Difference]: Without dead ends: 7374 [2021-01-06 19:34:12,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6188 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1592, Invalid=15438, Unknown=0, NotChecked=0, Total=17030 [2021-01-06 19:34:12,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7374 states. [2021-01-06 19:34:12,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7374 to 2293. [2021-01-06 19:34:12,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2293 states. [2021-01-06 19:34:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 2818 transitions. [2021-01-06 19:34:12,950 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 2818 transitions. Word has length 234 [2021-01-06 19:34:12,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:12,950 INFO L481 AbstractCegarLoop]: Abstraction has 2293 states and 2818 transitions. [2021-01-06 19:34:12,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 19:34:12,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 2818 transitions. [2021-01-06 19:34:12,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-01-06 19:34:12,956 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:12,957 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:13,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-01-06 19:34:13,172 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:13,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:13,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1556249744, now seen corresponding path program 1 times [2021-01-06 19:34:13,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:13,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144206975] [2021-01-06 19:34:13,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:13,300 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-01-06 19:34:13,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144206975] [2021-01-06 19:34:13,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:13,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:34:13,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030375804] [2021-01-06 19:34:13,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:34:13,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:13,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:34:13,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:34:13,303 INFO L87 Difference]: Start difference. First operand 2293 states and 2818 transitions. Second operand 3 states. [2021-01-06 19:34:13,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:13,576 INFO L93 Difference]: Finished difference Result 4468 states and 5468 transitions. [2021-01-06 19:34:13,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:34:13,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2021-01-06 19:34:13,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:13,582 INFO L225 Difference]: With dead ends: 4468 [2021-01-06 19:34:13,582 INFO L226 Difference]: Without dead ends: 2720 [2021-01-06 19:34:13,585 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 19:34:13,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2021-01-06 19:34:13,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 2269. [2021-01-06 19:34:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2269 states. [2021-01-06 19:34:13,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 2269 states and 2694 transitions. [2021-01-06 19:34:13,877 INFO L78 Accepts]: Start accepts. Automaton has 2269 states and 2694 transitions. Word has length 234 [2021-01-06 19:34:13,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:13,877 INFO L481 AbstractCegarLoop]: Abstraction has 2269 states and 2694 transitions. [2021-01-06 19:34:13,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:34:13,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 2694 transitions. [2021-01-06 19:34:13,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-01-06 19:34:13,883 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:13,883 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:13,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-01-06 19:34:13,884 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 19:34:13,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:13,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1347521317, now seen corresponding path program 1 times [2021-01-06 19:34:13,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:13,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699679595] [2021-01-06 19:34:13,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:13,982 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-01-06 19:34:13,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699679595] [2021-01-06 19:34:13,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:13,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:34:13,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572463652] [2021-01-06 19:34:13,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:34:13,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:13,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:34:13,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:34:13,985 INFO L87 Difference]: Start difference. First operand 2269 states and 2694 transitions. Second operand 3 states. [2021-01-06 19:34:14,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:14,190 INFO L93 Difference]: Finished difference Result 4245 states and 5029 transitions. [2021-01-06 19:34:14,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:34:14,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2021-01-06 19:34:14,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:14,195 INFO L225 Difference]: With dead ends: 4245 [2021-01-06 19:34:14,196 INFO L226 Difference]: Without dead ends: 1989 [2021-01-06 19:34:14,199 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 19:34:14,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2021-01-06 19:34:14,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 1989. [2021-01-06 19:34:14,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1989 states. [2021-01-06 19:34:14,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2341 transitions. [2021-01-06 19:34:14,413 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2341 transitions. Word has length 243 [2021-01-06 19:34:14,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:14,414 INFO L481 AbstractCegarLoop]: Abstraction has 1989 states and 2341 transitions. [2021-01-06 19:34:14,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:34:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2341 transitions. [2021-01-06 19:34:14,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-01-06 19:34:14,419 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:14,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:14,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-01-06 19:34:14,420 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 19:34:14,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:14,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1069835680, now seen corresponding path program 1 times [2021-01-06 19:34:14,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:14,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786343636] [2021-01-06 19:34:14,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:14,776 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 8 proven. 35 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:14,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786343636] [2021-01-06 19:34:14,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741047791] [2021-01-06 19:34:14,777 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 19:34:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:15,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:34:15,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:15,380 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 8 proven. 35 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:15,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:34:15,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 9 [2021-01-06 19:34:15,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024192927] [2021-01-06 19:34:15,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 19:34:15,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:15,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 19:34:15,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:34:15,382 INFO L87 Difference]: Start difference. First operand 1989 states and 2341 transitions. Second operand 9 states. [2021-01-06 19:34:17,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:17,427 INFO L93 Difference]: Finished difference Result 10790 states and 12839 transitions. [2021-01-06 19:34:17,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-06 19:34:17,428 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 246 [2021-01-06 19:34:17,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:17,447 INFO L225 Difference]: With dead ends: 10790 [2021-01-06 19:34:17,447 INFO L226 Difference]: Without dead ends: 9150 [2021-01-06 19:34:17,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 253 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=340, Invalid=1382, Unknown=0, NotChecked=0, Total=1722 [2021-01-06 19:34:17,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9150 states. [2021-01-06 19:34:18,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9150 to 5988. [2021-01-06 19:34:18,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5988 states. [2021-01-06 19:34:18,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5988 states to 5988 states and 7001 transitions. [2021-01-06 19:34:18,216 INFO L78 Accepts]: Start accepts. Automaton has 5988 states and 7001 transitions. Word has length 246 [2021-01-06 19:34:18,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:18,217 INFO L481 AbstractCegarLoop]: Abstraction has 5988 states and 7001 transitions. [2021-01-06 19:34:18,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 19:34:18,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5988 states and 7001 transitions. [2021-01-06 19:34:18,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-01-06 19:34:18,229 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:18,230 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:18,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-01-06 19:34:18,446 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 19:34:18,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:18,447 INFO L82 PathProgramCache]: Analyzing trace with hash -2142820204, now seen corresponding path program 1 times [2021-01-06 19:34:18,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:18,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379553352] [2021-01-06 19:34:18,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:18,856 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 26 proven. 19 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:18,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379553352] [2021-01-06 19:34:18,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279858574] [2021-01-06 19:34:18,857 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 19:34:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:19,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 28 conjunts are in the unsatisfiable core [2021-01-06 19:34:19,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:19,483 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 37 proven. 17 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-01-06 19:34:19,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:34:19,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2021-01-06 19:34:19,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703954503] [2021-01-06 19:34:19,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 19:34:19,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:19,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 19:34:19,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-01-06 19:34:19,485 INFO L87 Difference]: Start difference. First operand 5988 states and 7001 transitions. Second operand 15 states. [2021-01-06 19:34:26,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:26,554 INFO L93 Difference]: Finished difference Result 26203 states and 31619 transitions. [2021-01-06 19:34:26,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-01-06 19:34:26,555 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 247 [2021-01-06 19:34:26,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:26,589 INFO L225 Difference]: With dead ends: 26203 [2021-01-06 19:34:26,589 INFO L226 Difference]: Without dead ends: 20637 [2021-01-06 19:34:26,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1821 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=888, Invalid=4964, Unknown=0, NotChecked=0, Total=5852 [2021-01-06 19:34:26,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20637 states. [2021-01-06 19:34:27,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20637 to 9073. [2021-01-06 19:34:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9073 states. [2021-01-06 19:34:27,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9073 states to 9073 states and 10654 transitions. [2021-01-06 19:34:27,957 INFO L78 Accepts]: Start accepts. Automaton has 9073 states and 10654 transitions. Word has length 247 [2021-01-06 19:34:27,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:27,957 INFO L481 AbstractCegarLoop]: Abstraction has 9073 states and 10654 transitions. [2021-01-06 19:34:27,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 19:34:27,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9073 states and 10654 transitions. [2021-01-06 19:34:27,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-01-06 19:34:27,975 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:27,975 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:28,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:34:28,189 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 19:34:28,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:28,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1245668481, now seen corresponding path program 1 times [2021-01-06 19:34:28,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:28,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52643317] [2021-01-06 19:34:28,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:28,642 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 2 proven. 43 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:28,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52643317] [2021-01-06 19:34:28,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389286535] [2021-01-06 19:34:28,643 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 19:34:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:28,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 19:34:28,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:29,226 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-01-06 19:34:29,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:34:29,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 18 [2021-01-06 19:34:29,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596545909] [2021-01-06 19:34:29,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 19:34:29,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:29,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 19:34:29,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-01-06 19:34:29,228 INFO L87 Difference]: Start difference. First operand 9073 states and 10654 transitions. Second operand 7 states. [2021-01-06 19:34:32,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:32,400 INFO L93 Difference]: Finished difference Result 27557 states and 32854 transitions. [2021-01-06 19:34:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-06 19:34:32,401 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 254 [2021-01-06 19:34:32,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:32,419 INFO L225 Difference]: With dead ends: 27557 [2021-01-06 19:34:32,419 INFO L226 Difference]: Without dead ends: 19105 [2021-01-06 19:34:32,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2021-01-06 19:34:32,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19105 states. [2021-01-06 19:34:33,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19105 to 5573. [2021-01-06 19:34:33,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5573 states. [2021-01-06 19:34:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5573 states to 5573 states and 6583 transitions. [2021-01-06 19:34:33,683 INFO L78 Accepts]: Start accepts. Automaton has 5573 states and 6583 transitions. Word has length 254 [2021-01-06 19:34:33,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:33,684 INFO L481 AbstractCegarLoop]: Abstraction has 5573 states and 6583 transitions. [2021-01-06 19:34:33,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 19:34:33,684 INFO L276 IsEmpty]: Start isEmpty. Operand 5573 states and 6583 transitions. [2021-01-06 19:34:33,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-01-06 19:34:33,695 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:33,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:33,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:34:33,909 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 19:34:33,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:33,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1536574787, now seen corresponding path program 1 times [2021-01-06 19:34:33,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:33,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238654799] [2021-01-06 19:34:33,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:34,163 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-01-06 19:34:34,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238654799] [2021-01-06 19:34:34,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:34,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:34:34,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314200054] [2021-01-06 19:34:34,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:34:34,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:34,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:34:34,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:34,165 INFO L87 Difference]: Start difference. First operand 5573 states and 6583 transitions. Second operand 5 states. [2021-01-06 19:34:35,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:35,218 INFO L93 Difference]: Finished difference Result 10746 states and 12722 transitions. [2021-01-06 19:34:35,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:34:35,218 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 254 [2021-01-06 19:34:35,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:35,223 INFO L225 Difference]: With dead ends: 10746 [2021-01-06 19:34:35,223 INFO L226 Difference]: Without dead ends: 5573 [2021-01-06 19:34:35,227 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 19:34:35,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5573 states. [2021-01-06 19:34:36,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5573 to 5573. [2021-01-06 19:34:36,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5573 states. [2021-01-06 19:34:36,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5573 states to 5573 states and 6577 transitions. [2021-01-06 19:34:36,075 INFO L78 Accepts]: Start accepts. Automaton has 5573 states and 6577 transitions. Word has length 254 [2021-01-06 19:34:36,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:36,075 INFO L481 AbstractCegarLoop]: Abstraction has 5573 states and 6577 transitions. [2021-01-06 19:34:36,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:34:36,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5573 states and 6577 transitions. [2021-01-06 19:34:36,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-01-06 19:34:36,082 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:36,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:36,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-01-06 19:34:36,083 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 19:34:36,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:36,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1954725405, now seen corresponding path program 1 times [2021-01-06 19:34:36,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:36,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780093748] [2021-01-06 19:34:36,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 21 proven. 19 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:34:36,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780093748] [2021-01-06 19:34:36,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738042853] [2021-01-06 19:34:36,509 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 19:34:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:36,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 28 conjunts are in the unsatisfiable core [2021-01-06 19:34:36,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:34:37,242 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-01-06 19:34:37,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:34:37,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2021-01-06 19:34:37,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682051592] [2021-01-06 19:34:37,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-06 19:34:37,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:37,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-06 19:34:37,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-01-06 19:34:37,244 INFO L87 Difference]: Start difference. First operand 5573 states and 6577 transitions. Second operand 18 states. [2021-01-06 19:34:50,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:50,750 INFO L93 Difference]: Finished difference Result 41765 states and 51729 transitions. [2021-01-06 19:34:50,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-01-06 19:34:50,751 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 255 [2021-01-06 19:34:50,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:50,791 INFO L225 Difference]: With dead ends: 41765 [2021-01-06 19:34:50,792 INFO L226 Difference]: Without dead ends: 36689 [2021-01-06 19:34:50,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4441 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1866, Invalid=10790, Unknown=0, NotChecked=0, Total=12656 [2021-01-06 19:34:50,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36689 states. [2021-01-06 19:34:52,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36689 to 9041. [2021-01-06 19:34:52,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9041 states. [2021-01-06 19:34:52,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9041 states to 9041 states and 10745 transitions. [2021-01-06 19:34:52,181 INFO L78 Accepts]: Start accepts. Automaton has 9041 states and 10745 transitions. Word has length 255 [2021-01-06 19:34:52,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:52,181 INFO L481 AbstractCegarLoop]: Abstraction has 9041 states and 10745 transitions. [2021-01-06 19:34:52,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-01-06 19:34:52,181 INFO L276 IsEmpty]: Start isEmpty. Operand 9041 states and 10745 transitions. [2021-01-06 19:34:52,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-01-06 19:34:52,192 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:52,192 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:52,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-01-06 19:34:52,394 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 19:34:52,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:52,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1113739477, now seen corresponding path program 1 times [2021-01-06 19:34:52,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:52,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460359391] [2021-01-06 19:34:52,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:52,615 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-01-06 19:34:52,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460359391] [2021-01-06 19:34:52,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:52,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:34:52,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651389697] [2021-01-06 19:34:52,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:34:52,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:52,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:34:52,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:34:52,618 INFO L87 Difference]: Start difference. First operand 9041 states and 10745 transitions. Second operand 5 states. [2021-01-06 19:34:53,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:53,906 INFO L93 Difference]: Finished difference Result 17630 states and 20994 transitions. [2021-01-06 19:34:53,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:34:53,906 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2021-01-06 19:34:53,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:53,914 INFO L225 Difference]: With dead ends: 17630 [2021-01-06 19:34:53,915 INFO L226 Difference]: Without dead ends: 9077 [2021-01-06 19:34:53,922 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 19:34:53,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9077 states. [2021-01-06 19:34:55,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9077 to 9068. [2021-01-06 19:34:55,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9068 states. [2021-01-06 19:34:55,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9068 states to 9068 states and 10754 transitions. [2021-01-06 19:34:55,056 INFO L78 Accepts]: Start accepts. Automaton has 9068 states and 10754 transitions. Word has length 271 [2021-01-06 19:34:55,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:55,056 INFO L481 AbstractCegarLoop]: Abstraction has 9068 states and 10754 transitions. [2021-01-06 19:34:55,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:34:55,056 INFO L276 IsEmpty]: Start isEmpty. Operand 9068 states and 10754 transitions. [2021-01-06 19:34:55,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-01-06 19:34:55,066 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:55,066 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:34:55,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-01-06 19:34:55,067 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 19:34:55,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:55,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1152208463, now seen corresponding path program 1 times [2021-01-06 19:34:55,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:55,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929188514] [2021-01-06 19:34:55,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:55,240 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-01-06 19:34:55,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929188514] [2021-01-06 19:34:55,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:55,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 19:34:55,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983241659] [2021-01-06 19:34:55,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 19:34:55,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:55,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 19:34:55,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:34:55,242 INFO L87 Difference]: Start difference. First operand 9068 states and 10754 transitions. Second operand 7 states. [2021-01-06 19:34:57,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:34:57,717 INFO L93 Difference]: Finished difference Result 22514 states and 27300 transitions. [2021-01-06 19:34:57,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:34:57,718 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 271 [2021-01-06 19:34:57,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:34:57,731 INFO L225 Difference]: With dead ends: 22514 [2021-01-06 19:34:57,732 INFO L226 Difference]: Without dead ends: 14206 [2021-01-06 19:34:57,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:34:57,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14206 states. [2021-01-06 19:34:59,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14206 to 9900. [2021-01-06 19:34:59,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9900 states. [2021-01-06 19:34:59,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9900 states to 9900 states and 11738 transitions. [2021-01-06 19:34:59,089 INFO L78 Accepts]: Start accepts. Automaton has 9900 states and 11738 transitions. Word has length 271 [2021-01-06 19:34:59,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:34:59,089 INFO L481 AbstractCegarLoop]: Abstraction has 9900 states and 11738 transitions. [2021-01-06 19:34:59,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 19:34:59,090 INFO L276 IsEmpty]: Start isEmpty. Operand 9900 states and 11738 transitions. [2021-01-06 19:34:59,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-01-06 19:34:59,101 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:34:59,101 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:59,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-01-06 19:34:59,101 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:34:59,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:34:59,102 INFO L82 PathProgramCache]: Analyzing trace with hash -728561741, now seen corresponding path program 1 times [2021-01-06 19:34:59,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:34:59,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183784325] [2021-01-06 19:34:59,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:34:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:34:59,255 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-01-06 19:34:59,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183784325] [2021-01-06 19:34:59,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:34:59,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 19:34:59,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949933018] [2021-01-06 19:34:59,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 19:34:59,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:34:59,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 19:34:59,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:34:59,257 INFO L87 Difference]: Start difference. First operand 9900 states and 11738 transitions. Second operand 7 states. [2021-01-06 19:35:02,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:02,189 INFO L93 Difference]: Finished difference Result 23634 states and 28652 transitions. [2021-01-06 19:35:02,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:35:02,189 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 271 [2021-01-06 19:35:02,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:02,201 INFO L225 Difference]: With dead ends: 23634 [2021-01-06 19:35:02,201 INFO L226 Difference]: Without dead ends: 14494 [2021-01-06 19:35:02,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:35:02,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14494 states. [2021-01-06 19:35:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14494 to 10204. [2021-01-06 19:35:03,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10204 states. [2021-01-06 19:35:03,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10204 states to 10204 states and 12122 transitions. [2021-01-06 19:35:03,625 INFO L78 Accepts]: Start accepts. Automaton has 10204 states and 12122 transitions. Word has length 271 [2021-01-06 19:35:03,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:03,626 INFO L481 AbstractCegarLoop]: Abstraction has 10204 states and 12122 transitions. [2021-01-06 19:35:03,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 19:35:03,626 INFO L276 IsEmpty]: Start isEmpty. Operand 10204 states and 12122 transitions. [2021-01-06 19:35:03,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-01-06 19:35:03,635 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:03,635 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:35:03,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-01-06 19:35:03,636 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:03,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:03,636 INFO L82 PathProgramCache]: Analyzing trace with hash 591528353, now seen corresponding path program 1 times [2021-01-06 19:35:03,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:03,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231623361] [2021-01-06 19:35:03,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:03,895 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 26 proven. 19 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:03,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231623361] [2021-01-06 19:35:03,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328754477] [2021-01-06 19:35:03,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:35:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:04,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 19:35:04,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:35:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:35:04,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:35:04,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2021-01-06 19:35:04,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463897946] [2021-01-06 19:35:04,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:35:04,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:04,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:35:04,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-01-06 19:35:04,504 INFO L87 Difference]: Start difference. First operand 10204 states and 12122 transitions. Second operand 4 states. [2021-01-06 19:35:05,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:05,894 INFO L93 Difference]: Finished difference Result 19808 states and 23573 transitions. [2021-01-06 19:35:05,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:35:05,895 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2021-01-06 19:35:05,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:05,906 INFO L225 Difference]: With dead ends: 19808 [2021-01-06 19:35:05,906 INFO L226 Difference]: Without dead ends: 10027 [2021-01-06 19:35:05,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:35:05,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10027 states. [2021-01-06 19:35:07,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10027 to 10027. [2021-01-06 19:35:07,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10027 states. [2021-01-06 19:35:07,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10027 states to 10027 states and 11845 transitions. [2021-01-06 19:35:07,219 INFO L78 Accepts]: Start accepts. Automaton has 10027 states and 11845 transitions. Word has length 271 [2021-01-06 19:35:07,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:07,219 INFO L481 AbstractCegarLoop]: Abstraction has 10027 states and 11845 transitions. [2021-01-06 19:35:07,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:35:07,219 INFO L276 IsEmpty]: Start isEmpty. Operand 10027 states and 11845 transitions. [2021-01-06 19:35:07,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-01-06 19:35:07,227 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:07,227 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:35:07,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-01-06 19:35:07,433 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:07,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:07,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1156228533, now seen corresponding path program 1 times [2021-01-06 19:35:07,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:07,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663386150] [2021-01-06 19:35:07,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:07,786 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 26 proven. 24 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:07,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663386150] [2021-01-06 19:35:07,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829830109] [2021-01-06 19:35:07,787 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:35:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:08,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 22 conjunts are in the unsatisfiable core [2021-01-06 19:35:08,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:35:08,388 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 19:35:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:08,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:35:08,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2021-01-06 19:35:08,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117770433] [2021-01-06 19:35:08,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 19:35:08,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:08,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 19:35:08,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-01-06 19:35:08,582 INFO L87 Difference]: Start difference. First operand 10027 states and 11845 transitions. Second operand 16 states. [2021-01-06 19:35:16,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:16,520 INFO L93 Difference]: Finished difference Result 39484 states and 48103 transitions. [2021-01-06 19:35:16,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-01-06 19:35:16,521 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 272 [2021-01-06 19:35:16,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:16,550 INFO L225 Difference]: With dead ends: 39484 [2021-01-06 19:35:16,550 INFO L226 Difference]: Without dead ends: 30205 [2021-01-06 19:35:16,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 974 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=871, Invalid=2911, Unknown=0, NotChecked=0, Total=3782 [2021-01-06 19:35:16,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30205 states. [2021-01-06 19:35:18,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30205 to 10054. [2021-01-06 19:35:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10054 states. [2021-01-06 19:35:18,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10054 states to 10054 states and 11881 transitions. [2021-01-06 19:35:18,263 INFO L78 Accepts]: Start accepts. Automaton has 10054 states and 11881 transitions. Word has length 272 [2021-01-06 19:35:18,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:18,263 INFO L481 AbstractCegarLoop]: Abstraction has 10054 states and 11881 transitions. [2021-01-06 19:35:18,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 19:35:18,264 INFO L276 IsEmpty]: Start isEmpty. Operand 10054 states and 11881 transitions. [2021-01-06 19:35:18,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-01-06 19:35:18,273 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:18,273 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:35:18,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-01-06 19:35:18,474 INFO L429 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:18,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:18,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1519695031, now seen corresponding path program 1 times [2021-01-06 19:35:18,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:18,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144134885] [2021-01-06 19:35:18,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:18,720 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-01-06 19:35:18,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144134885] [2021-01-06 19:35:18,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:35:18,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:35:18,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951503712] [2021-01-06 19:35:18,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:35:18,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:18,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:35:18,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:35:18,723 INFO L87 Difference]: Start difference. First operand 10054 states and 11881 transitions. Second operand 5 states. [2021-01-06 19:35:20,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:20,231 INFO L93 Difference]: Finished difference Result 19591 states and 23199 transitions. [2021-01-06 19:35:20,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:35:20,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 272 [2021-01-06 19:35:20,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:20,241 INFO L225 Difference]: With dead ends: 19591 [2021-01-06 19:35:20,242 INFO L226 Difference]: Without dead ends: 10063 [2021-01-06 19:35:20,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:35:20,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10063 states. [2021-01-06 19:35:21,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10063 to 10027. [2021-01-06 19:35:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10027 states. [2021-01-06 19:35:21,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10027 states to 10027 states and 11845 transitions. [2021-01-06 19:35:21,644 INFO L78 Accepts]: Start accepts. Automaton has 10027 states and 11845 transitions. Word has length 272 [2021-01-06 19:35:21,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:21,645 INFO L481 AbstractCegarLoop]: Abstraction has 10027 states and 11845 transitions. [2021-01-06 19:35:21,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:35:21,645 INFO L276 IsEmpty]: Start isEmpty. Operand 10027 states and 11845 transitions. [2021-01-06 19:35:21,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-01-06 19:35:21,655 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:21,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:35:21,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-01-06 19:35:21,655 INFO L429 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:21,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:21,656 INFO L82 PathProgramCache]: Analyzing trace with hash 121637256, now seen corresponding path program 1 times [2021-01-06 19:35:21,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:21,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022203888] [2021-01-06 19:35:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:22,060 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:22,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022203888] [2021-01-06 19:35:22,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966292474] [2021-01-06 19:35:22,060 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:35:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:22,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 17 conjunts are in the unsatisfiable core [2021-01-06 19:35:22,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:35:22,790 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-01-06 19:35:22,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 19:35:22,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 19 [2021-01-06 19:35:22,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792599182] [2021-01-06 19:35:22,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:35:22,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:22,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:35:22,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2021-01-06 19:35:22,792 INFO L87 Difference]: Start difference. First operand 10027 states and 11845 transitions. Second operand 8 states. [2021-01-06 19:35:27,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:27,819 INFO L93 Difference]: Finished difference Result 31287 states and 38009 transitions. [2021-01-06 19:35:27,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-06 19:35:27,826 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 273 [2021-01-06 19:35:27,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:27,853 INFO L225 Difference]: With dead ends: 31287 [2021-01-06 19:35:27,853 INFO L226 Difference]: Without dead ends: 22008 [2021-01-06 19:35:27,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=1458, Unknown=0, NotChecked=0, Total=1722 [2021-01-06 19:35:27,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22008 states. [2021-01-06 19:35:29,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22008 to 7225. [2021-01-06 19:35:29,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7225 states. [2021-01-06 19:35:29,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7225 states to 7225 states and 8580 transitions. [2021-01-06 19:35:29,049 INFO L78 Accepts]: Start accepts. Automaton has 7225 states and 8580 transitions. Word has length 273 [2021-01-06 19:35:29,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:29,050 INFO L481 AbstractCegarLoop]: Abstraction has 7225 states and 8580 transitions. [2021-01-06 19:35:29,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:35:29,050 INFO L276 IsEmpty]: Start isEmpty. Operand 7225 states and 8580 transitions. [2021-01-06 19:35:29,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-01-06 19:35:29,060 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:29,060 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:35:29,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:35:29,276 INFO L429 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:29,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:29,277 INFO L82 PathProgramCache]: Analyzing trace with hash -233049159, now seen corresponding path program 1 times [2021-01-06 19:35:29,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:29,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776942690] [2021-01-06 19:35:29,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:29,764 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 20 proven. 17 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:29,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776942690] [2021-01-06 19:35:29,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44888759] [2021-01-06 19:35:29,764 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:35:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:30,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 24 conjunts are in the unsatisfiable core [2021-01-06 19:35:30,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:35:30,450 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 19:35:30,680 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:30,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:35:30,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-01-06 19:35:30,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963545193] [2021-01-06 19:35:30,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 19:35:30,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:30,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 19:35:30,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2021-01-06 19:35:30,682 INFO L87 Difference]: Start difference. First operand 7225 states and 8580 transitions. Second operand 20 states. [2021-01-06 19:35:46,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:46,375 INFO L93 Difference]: Finished difference Result 51212 states and 63582 transitions. [2021-01-06 19:35:46,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-01-06 19:35:46,376 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 273 [2021-01-06 19:35:46,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:46,421 INFO L225 Difference]: With dead ends: 51212 [2021-01-06 19:35:46,421 INFO L226 Difference]: Without dead ends: 44687 [2021-01-06 19:35:46,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4184 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2656, Invalid=10226, Unknown=0, NotChecked=0, Total=12882 [2021-01-06 19:35:46,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44687 states. [2021-01-06 19:35:47,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44687 to 7273. [2021-01-06 19:35:47,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7273 states. [2021-01-06 19:35:47,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7273 states to 7273 states and 8644 transitions. [2021-01-06 19:35:47,983 INFO L78 Accepts]: Start accepts. Automaton has 7273 states and 8644 transitions. Word has length 273 [2021-01-06 19:35:47,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:47,984 INFO L481 AbstractCegarLoop]: Abstraction has 7273 states and 8644 transitions. [2021-01-06 19:35:47,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 19:35:47,984 INFO L276 IsEmpty]: Start isEmpty. Operand 7273 states and 8644 transitions. [2021-01-06 19:35:47,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-01-06 19:35:47,993 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:47,993 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:35:48,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:35:48,208 INFO L429 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:48,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:48,209 INFO L82 PathProgramCache]: Analyzing trace with hash -817820809, now seen corresponding path program 1 times [2021-01-06 19:35:48,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:48,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181478869] [2021-01-06 19:35:48,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:48,458 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-01-06 19:35:48,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181478869] [2021-01-06 19:35:48,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:35:48,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:35:48,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499833951] [2021-01-06 19:35:48,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:35:48,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:48,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:35:48,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:35:48,460 INFO L87 Difference]: Start difference. First operand 7273 states and 8644 transitions. Second operand 5 states. [2021-01-06 19:35:50,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:50,038 INFO L93 Difference]: Finished difference Result 14156 states and 16857 transitions. [2021-01-06 19:35:50,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:35:50,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2021-01-06 19:35:50,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:50,046 INFO L225 Difference]: With dead ends: 14156 [2021-01-06 19:35:50,046 INFO L226 Difference]: Without dead ends: 7321 [2021-01-06 19:35:50,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:35:50,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7321 states. [2021-01-06 19:35:51,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7321 to 7225. [2021-01-06 19:35:51,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7225 states. [2021-01-06 19:35:51,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7225 states to 7225 states and 8580 transitions. [2021-01-06 19:35:51,445 INFO L78 Accepts]: Start accepts. Automaton has 7225 states and 8580 transitions. Word has length 273 [2021-01-06 19:35:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:35:51,446 INFO L481 AbstractCegarLoop]: Abstraction has 7225 states and 8580 transitions. [2021-01-06 19:35:51,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:35:51,446 INFO L276 IsEmpty]: Start isEmpty. Operand 7225 states and 8580 transitions. [2021-01-06 19:35:51,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-01-06 19:35:51,454 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:35:51,455 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:35:51,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-01-06 19:35:51,455 INFO L429 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:35:51,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:35:51,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1366525828, now seen corresponding path program 1 times [2021-01-06 19:35:51,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:35:51,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214876693] [2021-01-06 19:35:51,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:35:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:51,756 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 26 proven. 24 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:51,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214876693] [2021-01-06 19:35:51,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352181940] [2021-01-06 19:35:51,757 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:35:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:35:52,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:35:52,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:35:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:35:52,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:35:52,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-01-06 19:35:52,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084227019] [2021-01-06 19:35:52,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-01-06 19:35:52,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:35:52,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-01-06 19:35:52,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-01-06 19:35:52,589 INFO L87 Difference]: Start difference. First operand 7225 states and 8580 transitions. Second operand 14 states. [2021-01-06 19:35:59,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:35:59,480 INFO L93 Difference]: Finished difference Result 28869 states and 35200 transitions. [2021-01-06 19:35:59,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-06 19:35:59,480 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 273 [2021-01-06 19:35:59,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:35:59,502 INFO L225 Difference]: With dead ends: 28869 [2021-01-06 19:35:59,502 INFO L226 Difference]: Without dead ends: 22344 [2021-01-06 19:35:59,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=432, Invalid=1290, Unknown=0, NotChecked=0, Total=1722 [2021-01-06 19:35:59,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22344 states. [2021-01-06 19:36:01,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22344 to 7249. [2021-01-06 19:36:01,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7249 states. [2021-01-06 19:36:01,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7249 states to 7249 states and 8612 transitions. [2021-01-06 19:36:01,048 INFO L78 Accepts]: Start accepts. Automaton has 7249 states and 8612 transitions. Word has length 273 [2021-01-06 19:36:01,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:01,049 INFO L481 AbstractCegarLoop]: Abstraction has 7249 states and 8612 transitions. [2021-01-06 19:36:01,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-01-06 19:36:01,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7249 states and 8612 transitions. [2021-01-06 19:36:01,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-01-06 19:36:01,056 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:01,056 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:36:01,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:01,272 INFO L429 AbstractCegarLoop]: === Iteration 56 === [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 19:36:01,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:01,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1003059330, now seen corresponding path program 1 times [2021-01-06 19:36:01,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:01,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432497710] [2021-01-06 19:36:01,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:01,482 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-01-06 19:36:01,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432497710] [2021-01-06 19:36:01,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:01,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:01,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252945751] [2021-01-06 19:36:01,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:36:01,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:01,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:36:01,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:01,484 INFO L87 Difference]: Start difference. First operand 7249 states and 8612 transitions. Second operand 5 states. [2021-01-06 19:36:03,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:03,005 INFO L93 Difference]: Finished difference Result 14028 states and 16709 transitions. [2021-01-06 19:36:03,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:36:03,006 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2021-01-06 19:36:03,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:03,015 INFO L225 Difference]: With dead ends: 14028 [2021-01-06 19:36:03,015 INFO L226 Difference]: Without dead ends: 7257 [2021-01-06 19:36:03,019 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 19:36:03,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7257 states. [2021-01-06 19:36:04,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7257 to 7225. [2021-01-06 19:36:04,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7225 states. [2021-01-06 19:36:04,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7225 states to 7225 states and 8580 transitions. [2021-01-06 19:36:04,332 INFO L78 Accepts]: Start accepts. Automaton has 7225 states and 8580 transitions. Word has length 273 [2021-01-06 19:36:04,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:04,332 INFO L481 AbstractCegarLoop]: Abstraction has 7225 states and 8580 transitions. [2021-01-06 19:36:04,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:36:04,332 INFO L276 IsEmpty]: Start isEmpty. Operand 7225 states and 8580 transitions. [2021-01-06 19:36:04,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-01-06 19:36:04,338 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:04,338 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:36:04,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-01-06 19:36:04,339 INFO L429 AbstractCegarLoop]: === Iteration 57 === [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 19:36:04,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:04,339 INFO L82 PathProgramCache]: Analyzing trace with hash -948637126, now seen corresponding path program 1 times [2021-01-06 19:36:04,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:04,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509431530] [2021-01-06 19:36:04,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:04,488 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-01-06 19:36:04,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509431530] [2021-01-06 19:36:04,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:04,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:04,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002108356] [2021-01-06 19:36:04,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:36:04,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:04,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:36:04,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:36:04,490 INFO L87 Difference]: Start difference. First operand 7225 states and 8580 transitions. Second operand 4 states. [2021-01-06 19:36:05,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:05,324 INFO L93 Difference]: Finished difference Result 10015 states and 11897 transitions. [2021-01-06 19:36:05,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:36:05,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 273 [2021-01-06 19:36:05,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:05,329 INFO L225 Difference]: With dead ends: 10015 [2021-01-06 19:36:05,329 INFO L226 Difference]: Without dead ends: 3254 [2021-01-06 19:36:05,333 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 19:36:05,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2021-01-06 19:36:05,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3254. [2021-01-06 19:36:05,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3254 states. [2021-01-06 19:36:05,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 3819 transitions. [2021-01-06 19:36:05,939 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 3819 transitions. Word has length 273 [2021-01-06 19:36:05,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:05,940 INFO L481 AbstractCegarLoop]: Abstraction has 3254 states and 3819 transitions. [2021-01-06 19:36:05,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:36:05,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 3819 transitions. [2021-01-06 19:36:05,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-01-06 19:36:05,944 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:05,944 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:05,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-01-06 19:36:05,945 INFO L429 AbstractCegarLoop]: === Iteration 58 === [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 19:36:05,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:05,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1861864480, now seen corresponding path program 1 times [2021-01-06 19:36:05,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:05,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139045772] [2021-01-06 19:36:05,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:06,426 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 20 proven. 17 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:06,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139045772] [2021-01-06 19:36:06,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127439888] [2021-01-06 19:36:06,427 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:06,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 19:36:06,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:36:07,289 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:07,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:36:07,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2021-01-06 19:36:07,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288508543] [2021-01-06 19:36:07,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-06 19:36:07,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:07,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-06 19:36:07,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2021-01-06 19:36:07,291 INFO L87 Difference]: Start difference. First operand 3254 states and 3819 transitions. Second operand 18 states. [2021-01-06 19:36:16,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:16,431 INFO L93 Difference]: Finished difference Result 21282 states and 25841 transitions. [2021-01-06 19:36:16,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-01-06 19:36:16,431 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 274 [2021-01-06 19:36:16,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:16,448 INFO L225 Difference]: With dead ends: 21282 [2021-01-06 19:36:16,448 INFO L226 Difference]: Without dead ends: 18500 [2021-01-06 19:36:16,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1566 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1320, Invalid=4380, Unknown=0, NotChecked=0, Total=5700 [2021-01-06 19:36:16,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18500 states. [2021-01-06 19:36:17,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18500 to 3269. [2021-01-06 19:36:17,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3269 states. [2021-01-06 19:36:17,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 3839 transitions. [2021-01-06 19:36:17,160 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 3839 transitions. Word has length 274 [2021-01-06 19:36:17,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:17,160 INFO L481 AbstractCegarLoop]: Abstraction has 3269 states and 3839 transitions. [2021-01-06 19:36:17,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-01-06 19:36:17,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 3839 transitions. [2021-01-06 19:36:17,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-01-06 19:36:17,163 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:17,163 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:17,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-01-06 19:36:17,364 INFO L429 AbstractCegarLoop]: === Iteration 59 === [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 19:36:17,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:17,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1277092830, now seen corresponding path program 1 times [2021-01-06 19:36:17,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:17,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653773020] [2021-01-06 19:36:17,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:17,587 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-01-06 19:36:17,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653773020] [2021-01-06 19:36:17,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:17,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:17,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739073201] [2021-01-06 19:36:17,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:36:17,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:17,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:36:17,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:17,591 INFO L87 Difference]: Start difference. First operand 3269 states and 3839 transitions. Second operand 5 states. [2021-01-06 19:36:18,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:18,572 INFO L93 Difference]: Finished difference Result 6286 states and 7402 transitions. [2021-01-06 19:36:18,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:36:18,573 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2021-01-06 19:36:18,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:18,577 INFO L225 Difference]: With dead ends: 6286 [2021-01-06 19:36:18,577 INFO L226 Difference]: Without dead ends: 3294 [2021-01-06 19:36:18,579 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 19:36:18,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2021-01-06 19:36:19,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3254. [2021-01-06 19:36:19,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3254 states. [2021-01-06 19:36:19,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 3819 transitions. [2021-01-06 19:36:19,319 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 3819 transitions. Word has length 274 [2021-01-06 19:36:19,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:19,320 INFO L481 AbstractCegarLoop]: Abstraction has 3254 states and 3819 transitions. [2021-01-06 19:36:19,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:36:19,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 3819 transitions. [2021-01-06 19:36:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-01-06 19:36:19,323 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:19,323 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:36:19,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-01-06 19:36:19,323 INFO L429 AbstractCegarLoop]: === Iteration 60 === [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 19:36:19,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:19,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1316991906, now seen corresponding path program 1 times [2021-01-06 19:36:19,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:19,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067921173] [2021-01-06 19:36:19,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:19,474 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-01-06 19:36:19,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067921173] [2021-01-06 19:36:19,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:19,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:19,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925963000] [2021-01-06 19:36:19,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:36:19,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:19,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:36:19,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:36:19,477 INFO L87 Difference]: Start difference. First operand 3254 states and 3819 transitions. Second operand 4 states. [2021-01-06 19:36:20,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:20,114 INFO L93 Difference]: Finished difference Result 5119 states and 6004 transitions. [2021-01-06 19:36:20,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:36:20,115 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 274 [2021-01-06 19:36:20,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:20,117 INFO L225 Difference]: With dead ends: 5119 [2021-01-06 19:36:20,117 INFO L226 Difference]: Without dead ends: 2121 [2021-01-06 19:36:20,119 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 19:36:20,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2121 states. [2021-01-06 19:36:20,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121. [2021-01-06 19:36:20,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2121 states. [2021-01-06 19:36:20,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 2459 transitions. [2021-01-06 19:36:20,579 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 2459 transitions. Word has length 274 [2021-01-06 19:36:20,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:20,580 INFO L481 AbstractCegarLoop]: Abstraction has 2121 states and 2459 transitions. [2021-01-06 19:36:20,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:36:20,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 2459 transitions. [2021-01-06 19:36:20,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-01-06 19:36:20,582 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:20,582 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:20,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-01-06 19:36:20,582 INFO L429 AbstractCegarLoop]: === Iteration 61 === [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 19:36:20,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:20,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1766817480, now seen corresponding path program 1 times [2021-01-06 19:36:20,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:20,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889304220] [2021-01-06 19:36:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-01-06 19:36:20,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889304220] [2021-01-06 19:36:20,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:20,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 19:36:20,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967510739] [2021-01-06 19:36:20,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 19:36:20,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:20,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 19:36:20,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 19:36:20,731 INFO L87 Difference]: Start difference. First operand 2121 states and 2459 transitions. Second operand 7 states. [2021-01-06 19:36:21,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:21,972 INFO L93 Difference]: Finished difference Result 4625 states and 5476 transitions. [2021-01-06 19:36:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:36:21,973 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 275 [2021-01-06 19:36:21,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:21,976 INFO L225 Difference]: With dead ends: 4625 [2021-01-06 19:36:21,976 INFO L226 Difference]: Without dead ends: 2891 [2021-01-06 19:36:21,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-06 19:36:21,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2021-01-06 19:36:22,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 2109. [2021-01-06 19:36:22,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2109 states. [2021-01-06 19:36:22,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2441 transitions. [2021-01-06 19:36:22,443 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2441 transitions. Word has length 275 [2021-01-06 19:36:22,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:22,443 INFO L481 AbstractCegarLoop]: Abstraction has 2109 states and 2441 transitions. [2021-01-06 19:36:22,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 19:36:22,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2441 transitions. [2021-01-06 19:36:22,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-01-06 19:36:22,445 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:22,445 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:36:22,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-01-06 19:36:22,446 INFO L429 AbstractCegarLoop]: === Iteration 62 === [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 19:36:22,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:22,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1428040487, now seen corresponding path program 1 times [2021-01-06 19:36:22,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:22,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172980021] [2021-01-06 19:36:22,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:36:22,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172980021] [2021-01-06 19:36:22,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:22,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 19:36:22,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568106243] [2021-01-06 19:36:22,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:36:22,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:22,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:36:22,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:36:22,608 INFO L87 Difference]: Start difference. First operand 2109 states and 2441 transitions. Second operand 8 states. [2021-01-06 19:36:24,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:24,859 INFO L93 Difference]: Finished difference Result 6071 states and 7249 transitions. [2021-01-06 19:36:24,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-06 19:36:24,860 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 279 [2021-01-06 19:36:24,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:24,863 INFO L225 Difference]: With dead ends: 6071 [2021-01-06 19:36:24,863 INFO L226 Difference]: Without dead ends: 4349 [2021-01-06 19:36:24,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2021-01-06 19:36:24,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4349 states. [2021-01-06 19:36:25,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4349 to 2091. [2021-01-06 19:36:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2091 states. [2021-01-06 19:36:25,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2417 transitions. [2021-01-06 19:36:25,323 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2417 transitions. Word has length 279 [2021-01-06 19:36:25,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:25,324 INFO L481 AbstractCegarLoop]: Abstraction has 2091 states and 2417 transitions. [2021-01-06 19:36:25,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:36:25,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2417 transitions. [2021-01-06 19:36:25,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-01-06 19:36:25,326 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:25,326 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:25,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-01-06 19:36:25,327 INFO L429 AbstractCegarLoop]: === Iteration 63 === [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 19:36:25,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:25,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1629576874, now seen corresponding path program 1 times [2021-01-06 19:36:25,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:25,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759613418] [2021-01-06 19:36:25,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:25,785 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 35 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:25,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759613418] [2021-01-06 19:36:25,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408763938] [2021-01-06 19:36:25,787 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:26,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 24 conjunts are in the unsatisfiable core [2021-01-06 19:36:26,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:36:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 21 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:26,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:36:26,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-01-06 19:36:26,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817227631] [2021-01-06 19:36:26,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-01-06 19:36:26,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:26,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-01-06 19:36:26,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-01-06 19:36:26,868 INFO L87 Difference]: Start difference. First operand 2091 states and 2417 transitions. Second operand 21 states. [2021-01-06 19:36:35,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:35,953 INFO L93 Difference]: Finished difference Result 18761 states and 21876 transitions. [2021-01-06 19:36:35,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-01-06 19:36:35,954 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 280 [2021-01-06 19:36:35,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:35,977 INFO L225 Difference]: With dead ends: 18761 [2021-01-06 19:36:35,978 INFO L226 Difference]: Without dead ends: 17057 [2021-01-06 19:36:35,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3417 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1884, Invalid=8216, Unknown=0, NotChecked=0, Total=10100 [2021-01-06 19:36:35,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17057 states. [2021-01-06 19:36:36,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17057 to 3019. [2021-01-06 19:36:36,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3019 states. [2021-01-06 19:36:36,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 3499 transitions. [2021-01-06 19:36:36,726 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 3499 transitions. Word has length 280 [2021-01-06 19:36:36,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:36,726 INFO L481 AbstractCegarLoop]: Abstraction has 3019 states and 3499 transitions. [2021-01-06 19:36:36,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2021-01-06 19:36:36,726 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 3499 transitions. [2021-01-06 19:36:36,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-01-06 19:36:36,729 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:36,729 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:36,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-01-06 19:36:36,945 INFO L429 AbstractCegarLoop]: === Iteration 64 === [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 19:36:36,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:36,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1717338456, now seen corresponding path program 1 times [2021-01-06 19:36:36,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:36,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304239734] [2021-01-06 19:36:36,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:37,132 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:36:37,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304239734] [2021-01-06 19:36:37,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:37,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:36:37,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624708105] [2021-01-06 19:36:37,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:36:37,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:37,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:36:37,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:36:37,134 INFO L87 Difference]: Start difference. First operand 3019 states and 3499 transitions. Second operand 5 states. [2021-01-06 19:36:37,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:37,809 INFO L93 Difference]: Finished difference Result 5802 states and 6743 transitions. [2021-01-06 19:36:37,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:36:37,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2021-01-06 19:36:37,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:37,813 INFO L225 Difference]: With dead ends: 5802 [2021-01-06 19:36:37,813 INFO L226 Difference]: Without dead ends: 3059 [2021-01-06 19:36:37,816 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 19:36:37,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2021-01-06 19:36:38,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 3049. [2021-01-06 19:36:38,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3049 states. [2021-01-06 19:36:38,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 3524 transitions. [2021-01-06 19:36:38,429 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 3524 transitions. Word has length 280 [2021-01-06 19:36:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:38,430 INFO L481 AbstractCegarLoop]: Abstraction has 3049 states and 3524 transitions. [2021-01-06 19:36:38,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:36:38,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 3524 transitions. [2021-01-06 19:36:38,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-01-06 19:36:38,433 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:38,433 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:36:38,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-01-06 19:36:38,434 INFO L429 AbstractCegarLoop]: === Iteration 65 === [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 19:36:38,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:38,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1777782458, now seen corresponding path program 1 times [2021-01-06 19:36:38,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:38,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88772499] [2021-01-06 19:36:38,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:38,585 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-01-06 19:36:38,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88772499] [2021-01-06 19:36:38,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:38,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 19:36:38,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310821527] [2021-01-06 19:36:38,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:36:38,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:38,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:36:38,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:36:38,587 INFO L87 Difference]: Start difference. First operand 3049 states and 3524 transitions. Second operand 8 states. [2021-01-06 19:36:40,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:40,866 INFO L93 Difference]: Finished difference Result 8682 states and 10211 transitions. [2021-01-06 19:36:40,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 19:36:40,867 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 281 [2021-01-06 19:36:40,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:40,880 INFO L225 Difference]: With dead ends: 8682 [2021-01-06 19:36:40,880 INFO L226 Difference]: Without dead ends: 6087 [2021-01-06 19:36:40,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2021-01-06 19:36:40,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6087 states. [2021-01-06 19:36:41,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6087 to 3049. [2021-01-06 19:36:41,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3049 states. [2021-01-06 19:36:41,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 3516 transitions. [2021-01-06 19:36:41,532 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 3516 transitions. Word has length 281 [2021-01-06 19:36:41,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:41,533 INFO L481 AbstractCegarLoop]: Abstraction has 3049 states and 3516 transitions. [2021-01-06 19:36:41,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:36:41,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 3516 transitions. [2021-01-06 19:36:41,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-01-06 19:36:41,536 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:41,537 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:36:41,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-01-06 19:36:41,537 INFO L429 AbstractCegarLoop]: === Iteration 66 === [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 19:36:41,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:41,538 INFO L82 PathProgramCache]: Analyzing trace with hash 795051906, now seen corresponding path program 1 times [2021-01-06 19:36:41,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:41,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168477008] [2021-01-06 19:36:41,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-01-06 19:36:41,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168477008] [2021-01-06 19:36:41,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:36:41,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 19:36:41,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279670148] [2021-01-06 19:36:41,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:36:41,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:41,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:36:41,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:36:41,770 INFO L87 Difference]: Start difference. First operand 3049 states and 3516 transitions. Second operand 8 states. [2021-01-06 19:36:43,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:43,774 INFO L93 Difference]: Finished difference Result 7900 states and 9262 transitions. [2021-01-06 19:36:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 19:36:43,775 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 281 [2021-01-06 19:36:43,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:43,779 INFO L225 Difference]: With dead ends: 7900 [2021-01-06 19:36:43,779 INFO L226 Difference]: Without dead ends: 5305 [2021-01-06 19:36:43,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-01-06 19:36:43,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5305 states. [2021-01-06 19:36:44,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5305 to 3009. [2021-01-06 19:36:44,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3009 states. [2021-01-06 19:36:44,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3009 states to 3009 states and 3460 transitions. [2021-01-06 19:36:44,421 INFO L78 Accepts]: Start accepts. Automaton has 3009 states and 3460 transitions. Word has length 281 [2021-01-06 19:36:44,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:44,421 INFO L481 AbstractCegarLoop]: Abstraction has 3009 states and 3460 transitions. [2021-01-06 19:36:44,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:36:44,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3009 states and 3460 transitions. [2021-01-06 19:36:44,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-01-06 19:36:44,424 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:44,424 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:36:44,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-01-06 19:36:44,424 INFO L429 AbstractCegarLoop]: === Iteration 67 === [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 19:36:44,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:44,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1438858182, now seen corresponding path program 1 times [2021-01-06 19:36:44,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:44,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650904805] [2021-01-06 19:36:44,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:44,785 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 32 proven. 28 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:44,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650904805] [2021-01-06 19:36:44,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138617432] [2021-01-06 19:36:44,786 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:45,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:36:45,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:36:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 32 proven. 28 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:45,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:36:45,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 9 [2021-01-06 19:36:45,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595237888] [2021-01-06 19:36:45,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 19:36:45,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:45,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 19:36:45,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-01-06 19:36:45,459 INFO L87 Difference]: Start difference. First operand 3009 states and 3460 transitions. Second operand 9 states. [2021-01-06 19:36:47,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:36:47,484 INFO L93 Difference]: Finished difference Result 6496 states and 7569 transitions. [2021-01-06 19:36:47,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-06 19:36:47,485 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 281 [2021-01-06 19:36:47,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:36:47,489 INFO L225 Difference]: With dead ends: 6496 [2021-01-06 19:36:47,489 INFO L226 Difference]: Without dead ends: 3941 [2021-01-06 19:36:47,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 280 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=355, Invalid=1205, Unknown=0, NotChecked=0, Total=1560 [2021-01-06 19:36:47,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2021-01-06 19:36:48,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 2148. [2021-01-06 19:36:48,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2148 states. [2021-01-06 19:36:48,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 2456 transitions. [2021-01-06 19:36:48,060 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 2456 transitions. Word has length 281 [2021-01-06 19:36:48,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:36:48,061 INFO L481 AbstractCegarLoop]: Abstraction has 2148 states and 2456 transitions. [2021-01-06 19:36:48,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 19:36:48,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 2456 transitions. [2021-01-06 19:36:48,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-01-06 19:36:48,063 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:36:48,063 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:48,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-01-06 19:36:48,264 INFO L429 AbstractCegarLoop]: === Iteration 68 === [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 19:36:48,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:36:48,265 INFO L82 PathProgramCache]: Analyzing trace with hash 778233040, now seen corresponding path program 1 times [2021-01-06 19:36:48,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:36:48,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856681480] [2021-01-06 19:36:48,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:36:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:48,624 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 35 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:48,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856681480] [2021-01-06 19:36:48,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839971318] [2021-01-06 19:36:48,625 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:36:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:36:48,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 34 conjunts are in the unsatisfiable core [2021-01-06 19:36:48,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:36:49,359 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 19:36:49,784 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 21 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:36:49,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:36:49,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 25 [2021-01-06 19:36:49,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657271873] [2021-01-06 19:36:49,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-06 19:36:49,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:36:49,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-06 19:36:49,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2021-01-06 19:36:49,786 INFO L87 Difference]: Start difference. First operand 2148 states and 2456 transitions. Second operand 26 states. [2021-01-06 19:37:01,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:01,307 INFO L93 Difference]: Finished difference Result 16808 states and 19555 transitions. [2021-01-06 19:37:01,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-01-06 19:37:01,307 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 281 [2021-01-06 19:37:01,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:01,321 INFO L225 Difference]: With dead ends: 16808 [2021-01-06 19:37:01,321 INFO L226 Difference]: Without dead ends: 15114 [2021-01-06 19:37:01,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4913 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2539, Invalid=11741, Unknown=0, NotChecked=0, Total=14280 [2021-01-06 19:37:01,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15114 states. [2021-01-06 19:37:01,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15114 to 2163. [2021-01-06 19:37:01,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2163 states. [2021-01-06 19:37:01,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2163 states to 2163 states and 2476 transitions. [2021-01-06 19:37:01,972 INFO L78 Accepts]: Start accepts. Automaton has 2163 states and 2476 transitions. Word has length 281 [2021-01-06 19:37:01,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:01,973 INFO L481 AbstractCegarLoop]: Abstraction has 2163 states and 2476 transitions. [2021-01-06 19:37:01,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2021-01-06 19:37:01,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2163 states and 2476 transitions. [2021-01-06 19:37:01,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-01-06 19:37:01,975 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:01,975 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:37:02,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-01-06 19:37:02,176 INFO L429 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:02,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:02,177 INFO L82 PathProgramCache]: Analyzing trace with hash -169818926, now seen corresponding path program 1 times [2021-01-06 19:37:02,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:02,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547823441] [2021-01-06 19:37:02,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:02,403 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:37:02,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547823441] [2021-01-06 19:37:02,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:37:02,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:37:02,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050004584] [2021-01-06 19:37:02,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:37:02,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:02,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:37:02,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:37:02,406 INFO L87 Difference]: Start difference. First operand 2163 states and 2476 transitions. Second operand 5 states. [2021-01-06 19:37:03,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:03,039 INFO L93 Difference]: Finished difference Result 4086 states and 4693 transitions. [2021-01-06 19:37:03,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:37:03,040 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2021-01-06 19:37:03,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:03,042 INFO L225 Difference]: With dead ends: 4086 [2021-01-06 19:37:03,042 INFO L226 Difference]: Without dead ends: 2208 [2021-01-06 19:37:03,043 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 19:37:03,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2021-01-06 19:37:03,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2148. [2021-01-06 19:37:03,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2148 states. [2021-01-06 19:37:03,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 2456 transitions. [2021-01-06 19:37:03,603 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 2456 transitions. Word has length 281 [2021-01-06 19:37:03,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:03,603 INFO L481 AbstractCegarLoop]: Abstraction has 2148 states and 2456 transitions. [2021-01-06 19:37:03,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:37:03,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 2456 transitions. [2021-01-06 19:37:03,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-01-06 19:37:03,605 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:03,605 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:37:03,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-01-06 19:37:03,606 INFO L429 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:03,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:03,606 INFO L82 PathProgramCache]: Analyzing trace with hash -465278155, now seen corresponding path program 1 times [2021-01-06 19:37:03,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:03,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77731547] [2021-01-06 19:37:03,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:37:03,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77731547] [2021-01-06 19:37:03,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:37:03,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 19:37:03,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726350700] [2021-01-06 19:37:03,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:37:03,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:03,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:37:03,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:37:03,771 INFO L87 Difference]: Start difference. First operand 2148 states and 2456 transitions. Second operand 8 states. [2021-01-06 19:37:06,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:06,549 INFO L93 Difference]: Finished difference Result 7246 states and 8549 transitions. [2021-01-06 19:37:06,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-06 19:37:06,549 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 281 [2021-01-06 19:37:06,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:06,554 INFO L225 Difference]: With dead ends: 7246 [2021-01-06 19:37:06,554 INFO L226 Difference]: Without dead ends: 5500 [2021-01-06 19:37:06,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2021-01-06 19:37:06,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5500 states. [2021-01-06 19:37:07,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5500 to 2120. [2021-01-06 19:37:07,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2120 states. [2021-01-06 19:37:07,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2416 transitions. [2021-01-06 19:37:07,105 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2416 transitions. Word has length 281 [2021-01-06 19:37:07,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:07,106 INFO L481 AbstractCegarLoop]: Abstraction has 2120 states and 2416 transitions. [2021-01-06 19:37:07,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:37:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2416 transitions. [2021-01-06 19:37:07,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-01-06 19:37:07,108 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:07,108 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:37:07,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-01-06 19:37:07,108 INFO L429 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:07,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:07,109 INFO L82 PathProgramCache]: Analyzing trace with hash -387780873, now seen corresponding path program 1 times [2021-01-06 19:37:07,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:07,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302522924] [2021-01-06 19:37:07,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:07,250 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:37:07,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302522924] [2021-01-06 19:37:07,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:37:07,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:37:07,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44970467] [2021-01-06 19:37:07,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:37:07,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:07,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:37:07,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:37:07,252 INFO L87 Difference]: Start difference. First operand 2120 states and 2416 transitions. Second operand 3 states. [2021-01-06 19:37:08,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:08,126 INFO L93 Difference]: Finished difference Result 4470 states and 5151 transitions. [2021-01-06 19:37:08,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:37:08,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2021-01-06 19:37:08,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:08,129 INFO L225 Difference]: With dead ends: 4470 [2021-01-06 19:37:08,129 INFO L226 Difference]: Without dead ends: 2804 [2021-01-06 19:37:08,130 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 19:37:08,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2021-01-06 19:37:08,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2120. [2021-01-06 19:37:08,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2120 states. [2021-01-06 19:37:08,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2408 transitions. [2021-01-06 19:37:08,681 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2408 transitions. Word has length 281 [2021-01-06 19:37:08,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:08,681 INFO L481 AbstractCegarLoop]: Abstraction has 2120 states and 2408 transitions. [2021-01-06 19:37:08,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:37:08,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2408 transitions. [2021-01-06 19:37:08,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-01-06 19:37:08,683 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:08,683 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:37:08,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-01-06 19:37:08,684 INFO L429 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:08,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:08,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1167022479, now seen corresponding path program 1 times [2021-01-06 19:37:08,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:08,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109677374] [2021-01-06 19:37:08,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:09,060 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 35 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:37:09,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109677374] [2021-01-06 19:37:09,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025383396] [2021-01-06 19:37:09,061 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:37:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:09,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 26 conjunts are in the unsatisfiable core [2021-01-06 19:37:09,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:37:10,037 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 21 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:37:10,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:37:10,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-01-06 19:37:10,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407609555] [2021-01-06 19:37:10,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-06 19:37:10,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:10,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-06 19:37:10,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2021-01-06 19:37:10,039 INFO L87 Difference]: Start difference. First operand 2120 states and 2408 transitions. Second operand 24 states. [2021-01-06 19:37:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:19,587 INFO L93 Difference]: Finished difference Result 15956 states and 18441 transitions. [2021-01-06 19:37:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-01-06 19:37:19,588 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 282 [2021-01-06 19:37:19,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:19,600 INFO L225 Difference]: With dead ends: 15956 [2021-01-06 19:37:19,600 INFO L226 Difference]: Without dead ends: 14290 [2021-01-06 19:37:19,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3485 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2044, Invalid=8668, Unknown=0, NotChecked=0, Total=10712 [2021-01-06 19:37:19,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14290 states. [2021-01-06 19:37:20,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14290 to 2135. [2021-01-06 19:37:20,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2021-01-06 19:37:20,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 2428 transitions. [2021-01-06 19:37:20,237 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 2428 transitions. Word has length 282 [2021-01-06 19:37:20,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:20,237 INFO L481 AbstractCegarLoop]: Abstraction has 2135 states and 2428 transitions. [2021-01-06 19:37:20,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-01-06 19:37:20,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 2428 transitions. [2021-01-06 19:37:20,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-01-06 19:37:20,239 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:20,239 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:37:20,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:37:20,441 INFO L429 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:20,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:20,441 INFO L82 PathProgramCache]: Analyzing trace with hash -2115074445, now seen corresponding path program 1 times [2021-01-06 19:37:20,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:20,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610446887] [2021-01-06 19:37:20,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:37:20,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610446887] [2021-01-06 19:37:20,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:37:20,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:37:20,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506907541] [2021-01-06 19:37:20,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:37:20,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:20,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:37:20,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:37:20,670 INFO L87 Difference]: Start difference. First operand 2135 states and 2428 transitions. Second operand 5 states. [2021-01-06 19:37:21,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:21,461 INFO L93 Difference]: Finished difference Result 4030 states and 4598 transitions. [2021-01-06 19:37:21,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 19:37:21,462 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 282 [2021-01-06 19:37:21,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:21,464 INFO L225 Difference]: With dead ends: 4030 [2021-01-06 19:37:21,464 INFO L226 Difference]: Without dead ends: 2180 [2021-01-06 19:37:21,465 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 19:37:21,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2021-01-06 19:37:22,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2120. [2021-01-06 19:37:22,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2120 states. [2021-01-06 19:37:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2408 transitions. [2021-01-06 19:37:22,051 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2408 transitions. Word has length 282 [2021-01-06 19:37:22,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:22,051 INFO L481 AbstractCegarLoop]: Abstraction has 2120 states and 2408 transitions. [2021-01-06 19:37:22,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:37:22,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2408 transitions. [2021-01-06 19:37:22,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-01-06 19:37:22,053 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:22,053 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:37:22,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-01-06 19:37:22,053 INFO L429 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:22,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:22,054 INFO L82 PathProgramCache]: Analyzing trace with hash -878203089, now seen corresponding path program 1 times [2021-01-06 19:37:22,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:22,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447024401] [2021-01-06 19:37:22,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:22,204 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:37:22,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447024401] [2021-01-06 19:37:22,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:37:22,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:37:22,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369652184] [2021-01-06 19:37:22,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:37:22,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:22,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:37:22,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:37:22,206 INFO L87 Difference]: Start difference. First operand 2120 states and 2408 transitions. Second operand 4 states. [2021-01-06 19:37:22,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:22,827 INFO L93 Difference]: Finished difference Result 3341 states and 3802 transitions. [2021-01-06 19:37:22,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:37:22,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 282 [2021-01-06 19:37:22,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:22,829 INFO L225 Difference]: With dead ends: 3341 [2021-01-06 19:37:22,829 INFO L226 Difference]: Without dead ends: 1476 [2021-01-06 19:37:22,831 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 19:37:22,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2021-01-06 19:37:23,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1476. [2021-01-06 19:37:23,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1476 states. [2021-01-06 19:37:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 1661 transitions. [2021-01-06 19:37:23,261 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 1661 transitions. Word has length 282 [2021-01-06 19:37:23,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:23,262 INFO L481 AbstractCegarLoop]: Abstraction has 1476 states and 1661 transitions. [2021-01-06 19:37:23,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:37:23,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 1661 transitions. [2021-01-06 19:37:23,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-01-06 19:37:23,263 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:23,263 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:37:23,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-01-06 19:37:23,264 INFO L429 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:23,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:23,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1859574718, now seen corresponding path program 1 times [2021-01-06 19:37:23,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:23,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763258419] [2021-01-06 19:37:23,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:37:23,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763258419] [2021-01-06 19:37:23,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:37:23,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 19:37:23,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694637075] [2021-01-06 19:37:23,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:37:23,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:23,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:37:23,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:37:23,390 INFO L87 Difference]: Start difference. First operand 1476 states and 1661 transitions. Second operand 8 states. [2021-01-06 19:37:24,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:24,790 INFO L93 Difference]: Finished difference Result 3483 states and 3994 transitions. [2021-01-06 19:37:24,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:37:24,790 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 282 [2021-01-06 19:37:24,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:24,792 INFO L225 Difference]: With dead ends: 3483 [2021-01-06 19:37:24,792 INFO L226 Difference]: Without dead ends: 2394 [2021-01-06 19:37:24,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-01-06 19:37:24,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2021-01-06 19:37:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 1461. [2021-01-06 19:37:25,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1461 states. [2021-01-06 19:37:25,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 1637 transitions. [2021-01-06 19:37:25,228 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 1637 transitions. Word has length 282 [2021-01-06 19:37:25,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:25,228 INFO L481 AbstractCegarLoop]: Abstraction has 1461 states and 1637 transitions. [2021-01-06 19:37:25,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:37:25,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 1637 transitions. [2021-01-06 19:37:25,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-01-06 19:37:25,230 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:25,230 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:37:25,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-01-06 19:37:25,230 INFO L429 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:25,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:25,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1272768704, now seen corresponding path program 1 times [2021-01-06 19:37:25,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:25,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227573601] [2021-01-06 19:37:25,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:25,351 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-01-06 19:37:25,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227573601] [2021-01-06 19:37:25,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:37:25,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 19:37:25,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502131176] [2021-01-06 19:37:25,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:37:25,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:25,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:37:25,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:37:25,353 INFO L87 Difference]: Start difference. First operand 1461 states and 1637 transitions. Second operand 8 states. [2021-01-06 19:37:26,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:26,986 INFO L93 Difference]: Finished difference Result 3885 states and 4445 transitions. [2021-01-06 19:37:26,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 19:37:26,987 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 282 [2021-01-06 19:37:26,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:26,990 INFO L225 Difference]: With dead ends: 3885 [2021-01-06 19:37:26,990 INFO L226 Difference]: Without dead ends: 2811 [2021-01-06 19:37:26,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-01-06 19:37:26,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2021-01-06 19:37:27,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 1449. [2021-01-06 19:37:27,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1449 states. [2021-01-06 19:37:27,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1619 transitions. [2021-01-06 19:37:27,466 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1619 transitions. Word has length 282 [2021-01-06 19:37:27,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:27,466 INFO L481 AbstractCegarLoop]: Abstraction has 1449 states and 1619 transitions. [2021-01-06 19:37:27,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:37:27,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1619 transitions. [2021-01-06 19:37:27,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-01-06 19:37:27,468 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:27,468 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:37:27,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-01-06 19:37:27,469 INFO L429 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:27,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:27,469 INFO L82 PathProgramCache]: Analyzing trace with hash 463422078, now seen corresponding path program 1 times [2021-01-06 19:37:27,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:27,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806363755] [2021-01-06 19:37:27,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-01-06 19:37:27,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806363755] [2021-01-06 19:37:27,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:37:27,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:37:27,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534575259] [2021-01-06 19:37:27,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:37:27,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:27,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:37:27,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:37:27,604 INFO L87 Difference]: Start difference. First operand 1449 states and 1619 transitions. Second operand 4 states. [2021-01-06 19:37:28,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:28,665 INFO L93 Difference]: Finished difference Result 2947 states and 3354 transitions. [2021-01-06 19:37:28,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:37:28,665 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 282 [2021-01-06 19:37:28,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:28,667 INFO L225 Difference]: With dead ends: 2947 [2021-01-06 19:37:28,667 INFO L226 Difference]: Without dead ends: 1885 [2021-01-06 19:37:28,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:37:28,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2021-01-06 19:37:29,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1449. [2021-01-06 19:37:29,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1449 states. [2021-01-06 19:37:29,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1613 transitions. [2021-01-06 19:37:29,126 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1613 transitions. Word has length 282 [2021-01-06 19:37:29,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:29,126 INFO L481 AbstractCegarLoop]: Abstraction has 1449 states and 1613 transitions. [2021-01-06 19:37:29,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:37:29,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1613 transitions. [2021-01-06 19:37:29,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-01-06 19:37:29,129 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:29,129 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:37:29,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-01-06 19:37:29,130 INFO L429 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:29,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:29,130 INFO L82 PathProgramCache]: Analyzing trace with hash 470303799, now seen corresponding path program 1 times [2021-01-06 19:37:29,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:29,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733746098] [2021-01-06 19:37:29,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:29,439 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 34 proven. 32 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:37:29,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733746098] [2021-01-06 19:37:29,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883073019] [2021-01-06 19:37:29,439 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:37:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:29,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 19:37:29,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 19:37:30,069 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 34 proven. 32 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:37:30,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 19:37:30,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-01-06 19:37:30,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958932074] [2021-01-06 19:37:30,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 19:37:30,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:37:30,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 19:37:30,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-01-06 19:37:30,071 INFO L87 Difference]: Start difference. First operand 1449 states and 1613 transitions. Second operand 8 states. [2021-01-06 19:37:33,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:37:33,367 INFO L93 Difference]: Finished difference Result 6150 states and 7012 transitions. [2021-01-06 19:37:33,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-06 19:37:33,368 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 282 [2021-01-06 19:37:33,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:37:33,372 INFO L225 Difference]: With dead ends: 6150 [2021-01-06 19:37:33,372 INFO L226 Difference]: Without dead ends: 5088 [2021-01-06 19:37:33,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 288 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=382, Invalid=1340, Unknown=0, NotChecked=0, Total=1722 [2021-01-06 19:37:33,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5088 states. [2021-01-06 19:37:34,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5088 to 2015. [2021-01-06 19:37:34,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2015 states. [2021-01-06 19:37:34,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2248 transitions. [2021-01-06 19:37:34,203 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2248 transitions. Word has length 282 [2021-01-06 19:37:34,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:37:34,203 INFO L481 AbstractCegarLoop]: Abstraction has 2015 states and 2248 transitions. [2021-01-06 19:37:34,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 19:37:34,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2248 transitions. [2021-01-06 19:37:34,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-01-06 19:37:34,205 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:37:34,206 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-06 19:37:34,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 19:37:34,407 INFO L429 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:37:34,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:37:34,408 INFO L82 PathProgramCache]: Analyzing trace with hash -909090434, now seen corresponding path program 1 times [2021-01-06 19:37:34,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:37:34,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460730903] [2021-01-06 19:37:34,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:37:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:37:34,894 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 3 proven. 61 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-01-06 19:37:34,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460730903] [2021-01-06 19:37:34,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153845358] [2021-01-06 19:37:34,894 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 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true